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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

PCR-RFLP no ?xon II do gene da leptina e avalia??o das caracter?sticas f?sicas da carne de caprinos machos inteiros saanen e cruzados saanen X boer / PCR-RFLP in exon II of the leptin gene and evaluation of the physical characteristics of meat from boars Saanen goats and crossed Saanen x Boer

Silva, Rebecca Barbosa 04 March 2016 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-08-08T14:42:16Z No. of bitstreams: 1 2016 - Rebecca Barbosa Silva.pdf: 755345 bytes, checksum: 51b2e7f47c9cc4e8177521a6ed62a89d (MD5) / Made available in DSpace on 2017-08-08T14:42:16Z (GMT). No. of bitstreams: 1 2016 - Rebecca Barbosa Silva.pdf: 755345 bytes, checksum: 51b2e7f47c9cc4e8177521a6ed62a89d (MD5) Previous issue date: 2016-03-04 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Molecular markers are important tools in the marker assisted selection programs (MAS). Leptin is expressed hormone mainly in the adipocytes and involved in the regulation of energy metabolism, fat deposition, regulation of glycemia and reproductive physiology and thus has been investigated in association studies quality carcass characteristics and meat in different species. Objective with this work identify the polymorphism in the Leptin gene, changes in qualitative and quantitative characteristics of meat and goat carcass and relate variations of productive features to potential polymorphisms. They were used for genotyping 38 goats intact males, 21 Saanen and 17 crusaders Boer x Saanen. Genotypes for the marker were identified by PCR-RFLP technique based on standardized protocols for SNP305. DNA samples were isolated from leukocyte genomic and amplified through reaction technique Polymerase Chain Reaction (PCR). The generated PCR fragments of 94 base pairs (bp) were digested by Kpn2I enzyme yielding two fragments 75 (bp), 19 (bp) for all individuals analyzed, obtaining allelic frequency of 100% for T. Thus genotype, it was not possible to correlate the results obtained in the evaluation of quality meat and carcass to the results of the molecular study. For the evaluation of carcass quality and meat was used 18 male, 9 Saanen and Saanen x 9 crusaders Boer. t test was used for independent samples of the statistical program BioEstat the 5% significance (P<0.05) for morphometric measurements, live weight, live weight after fasting, hot carcass weight, cold carcass weight, cooling breaks, carcass yield, loss of cooling, thick fat cover, color, pH, water holding capacity and tenderness of the meat, weight and yield cuts (shoulder, hand saw, rib set, ham and loin) and compactness index of carcass. The grouping of the Crusaders animals showed significant differences (P<0.05) for wide shank and shear force. For Saanen animals, there was a significant difference (P<0.05) for the external length of the housing. Although Crossed have shown higher shear strength values (P<0.05), the two groups had average below 5.4 kg-f cm-?, featuring soft meats in goats (2.20 and 1, 57 kg f cm-2 for Crossed and Saanen, respectively). The results showed that the use of both the Crusaders animals, as the Saanen animals are a viable option for dairy farmers who wish to diversify their activities, taking advantage of the disposal of male goats for meat production / Os marcadores moleculares s?o importantes ferramentas nos programas de sele??o assistida por marcadores (MAS). A Leptina ? um horm?nio expresso principalmente nos adip?citos e est? envolvido na regula??o do metabolismo energ?tico, deposi??o de gordura, regula??o da glicemia e fisiologia reprodutiva e por isso tem sido investigado em estudos de associa??o a caracter?sticas de qualidade de carca?a e carne em diferentes esp?cies. Objetiva-se com este trabalho identificar o polimorfismo no gene da Leptina, as varia??es nas caracter?sticas qualitativas e quantitativas da carne e da carca?a de caprinos e relacionar as varia??es das caracter?sticas produtivas a poss?veis polimorfismos. Foram utilizados para a genotipagem 38 cabritos machos inteiros, sendo 21 Saanen e 17 Cruzados Saanen x Boer. Os gen?tipos para o marcador foram identificados pela t?cnica de PCR-RFLP com base nos protocolos padronizados para o SNP305. Foram isoladas amostras de DNA gen?mico a partir de leuc?citos e amplificados por interm?dio da t?cnica de Rea??o em Cadeia de Polimerase (PCR). A PCR gerou fragmentos de 94 pares de bases (pb) que foram digeridos pela enzima Kpn2I, originando dois fragmentos de 75 (pb) e 19 (pb) para todos os indiv?duos analisados, obtendo frequ?ncia al?lica de 100% para o gen?tipo T. Dessa forma, n?o foi poss?vel correlacionar os resultados obtidos na avalia??o de qualidade de carne e carca?a aos resultados obtidos no estudo molecular. Para a avalia??o de qualidade de carca?a e carne foram utilizados 18 machos inteiros, 9 Saanen e 9 Cruzados Saanen x Boer. Foi aplicado o teste t para amostras independentes do programa estat?stico BioEstat a 5% de signific?ncia (P<0,05) para as medidas morfom?tricas, peso vivo, peso vivo ap?s jejum, peso de carca?a quente, peso de carca?a fria, quebra de resfriamento, rendimentos de carca?a, perda por resfriamento, espessura de gordura de cobertura, cor, pH, capacidade de reten??o de ?gua e maciez da carne, peso e rendimento de cortes (paleta, serrote, carr?, pernil e lombo) e ?ndice de compacidade da carca?a. O grupamento dos animais Cruzados apresentou diferen?as significativas (P<0,05) para largura de pernil e for?a de cisalhamento. Para os animais Saanen, houve diferen?a significativa (P<0,05) para o comprimento externo da carca?a. Embora os Cruzados tenham apresentado maiores valores de for?a de cisalhamento (P<0,05), os dois grupos obtiveram m?dias abaixo de 5,4 kg-f cm-2, o que caracteriza carnes macias em caprinos (2,20 e 1,57 kg-f cm-2 para Cruzados e Saanen, respectivamente). Os resultados mostraram que a utiliza??o tanto dos animais Cruzados, quanto dos animais Saanen s?o uma op??o vi?vel aos produtores de leite que desejam diversificar as atividades, aproveitando os cabritos machos de descarte para a produ??o de carne
142

Uma experi?ncia interdisciplinar com alunos da Escola Agrot?cnica Federal de S?o Crist?v?o-SE: a pedagogia de projetos / An interdisciplinary experience of s?o crist?v?o/se Federal agrotechnical school: the pedagogy projects.

Coelho, Herivelto Jos? 21 September 2010 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-08-22T12:27:15Z No. of bitstreams: 1 2010 - Herivelto Jos? Coelho.pdf: 1297929 bytes, checksum: 72022180b9345d2204f89d89397cf6c7 (MD5) / Made available in DSpace on 2017-08-22T12:27:15Z (GMT). No. of bitstreams: 1 2010 - Herivelto Jos? Coelho.pdf: 1297929 bytes, checksum: 72022180b9345d2204f89d89397cf6c7 (MD5) Previous issue date: 2010-09-21 / This work aimed to verify the students of 3rd grade of Integrated Courses of Agriculture and Agribusiness, changes in terms of study habits, expectations, construction and applicability of knowledge and their positions on the teaching-based learning in Pedagogy of Projects. The Pedagogy of Project is presented as a methodology that can break with the theory / practice dichotomy, since it induces the student to develop competencies - knowledge, skills and values. This pedagogy also took us to ways of inter and transdisciplinarity, because agricultural projects require interventions that belong to different fields of knowledge. The activity discussed, proposed and negotiated by students was the implementation of the Project Grow Basil and of Lemongrass. From this project, students produced texts, collectives and individuals, representing their ability to plan, reflect, record and evaluate a work, in full, with autonomy. The tools used were semi-structured questionnaires: one applied to the 156 students at the beginning of 2008, when they reached the school, and the other, applied to 28 students randomly chosen among those involved in the process, seeking to identify their perceptions regarding the application of Pedagogy of Project. Were also used as instruments of this research texts prepared by students during the course of activities of the Project. Observing the results, We come to the conclusion that the Pedagogy of Project constitutes an excellent method to allow students to construct knowledge with self-confidence, a spirit of cooperation, responsibility, democracy and autonomy, especially in Professional Education. / Este trabalho teve por objetivo verificar nos alunos da 3? s?rie dos Cursos T?cnicos Integrados de Agropecu?ria e de Agroind?stria, mudan?as em termos de h?bitos de estudo, expectativas, constru??o e aplicabilidade de conhecimentos e suas posturas diante do processo de ensino-aprendizagem baseado na Pedagogia de Projetos. A Pedagogia de Projetos apresenta-se como uma metodologia que pode romper com a dicotomia teoria/ pr?tica, uma vez que induz o aluno a desenvolver compet?ncias ? conhecimentos, habilidades e valores. Esta pedagogia tamb?m nos levou aos caminhos da inter e da transdisciplinaridade, pois projetos de agropecu?ria exigem interven??es que pertencem a diversos campos do conhecimento. A atividade discutida, proposta e negociada pelos alunos foi a implanta??o do Projeto de Cultivo do Manjeric?o e do Capim Santo. A partir deste Projeto, os alunos elaboraram textos, coletivos e individuais, que representam sua capacidade de planejar, refletir, registrar e avaliar um trabalho, por inteiro, com autonomia. Os instrumentos aplicados foram question?rios semi-estruturados: um aplicado para os 156 alunos, no in?cio do ano de 2008, quando chegaram ? escola e outro, aplicado a 28 alunos escolhidos aleatoriamente entre os envolvidos no processo, procurando detectar suas percep??es quanto ? aplica??o da Pedagogia de Projetos. Foram ainda utilizados como instrumentos desta pesquisa textos elaborados pelos alunos durante o transcorrer das atividades do Projeto. Observando-se os resultados chega-se ? conclus?o de que a Pedagogia de Projetos constitui-se excelente metodologia para permitir aos alunos constru??o de conhecimento com autoconfian?a, esp?rito de coopera??o, responsabilidade, democracia e autonomia, principalmente na Educa??o Profissional.
143

Produ??o de helic?nia Golden Torch sob cultivo em al?ias. / Production of Heliconia Golden Torch under alley cropping.

Cirqueira, Andr? Luiz Oliveira 29 October 2009 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-08-22T15:27:16Z No. of bitstreams: 1 2009 - Andre Luiz Oliveira Cirqueira.pdf: 2107082 bytes, checksum: 332d5419e8942ce8ee1ccd478e906c34 (MD5) / Made available in DSpace on 2017-08-22T15:27:16Z (GMT). No. of bitstreams: 1 2009 - Andre Luiz Oliveira Cirqueira.pdf: 2107082 bytes, checksum: 332d5419e8942ce8ee1ccd478e906c34 (MD5) Previous issue date: 2009-10-29 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico, CNPq, Brasil. / Tropical flower production has growing in Brazil, mostly by the recent interest of flower consumers on products with exotic shapes, vibrant colors and high durability. These flowers, not usual in Brazil, are still produced on low scale. Production systems have not been intensively exploited, as well as basic studies with the various varieties and species have not been conducted. Production systems that combine economic feasibility with low environmental impact should de developed for this plant group, since they adapt to a wide range of environmental conditions, including shade. Environment adaptation studies combined with mineral nutrition studies are necessary to understand and improve integrated tropical flower production, using other pla nt species under various environmental conditions. Alley cropping, used on this study, is an example of such integration. This research evaluated the performance of hybrid heliconia Golden Torch (Heliconia psittacorum L x Heliconia spathocircinada Aristigueta) under alley cropping with pigeonpea (Cajanus cajan (L.) Millsp.) and Flemingia macrophylla and a control treatment. Two rates of thermophosphate (Yorin Master 1) ? with or without, were combined to the previous treatments. The experiment was conducted at the Crop Science Department of Universidade Federal Rural do Rio de Janeiro. The experimental design was a split plot in complete randomized design. Lower heliconia mortality occurred on alleys formed by Cajanus cajan. Phosphate addition did not affect mortality. Higher yields of heliconia flowers were observed on Flemingia macrophylla alleys, followed by Cajanus cajan and control. Phsophate addition did not affect yields. Number of lateral shoots was affected by the plant position on the plot: central rows tended to have more shoots than lateral rows. Leaf area was higher where phosphate was applied, independently of alley cropping. / A floricultura tropical tem se projetado no Brasil, principalmente pelo recente interesse dos consumidores de flores, por produtos de formas ex?ticas, cores vibrantes e alta durabilidade. Essas flores, pouco tradicionais no Brasil, s?o produzidas ainda em pequena escala. Seus sistemas de produ??o ainda n?o foram intensivamente estudados, bem como estudos b?sicos envolvendo as muitas esp?cies e variedades ainda est?o por ser feitos. Sistemas de produ??o que conciliem viabilidade econ?mica com baixo impacto ambiental, devem ser desenvolvidos para esse grupo de plantas, visto que se adaptam a uma gama de condi??es ambientais, incluindo sombreamento. Estudos de ambi?ncia combinados aos de nutri??o mineral s?o necess?rios para se entender e aperfei?oar uma forma de floricultura tropical integrada a outras esp?cies, em diferentes condi??es edafoclim?ticas. Um exemplo ? o sistema de cultivo em al?ias, objeto deste estudo. Este trabalho teve como objetivo avaliar o comportamento do hibrido natural Golden Torch (Heliconia psittacorum L x Heliconia spathocircinada Aristigueta) cultivada sob sistema de cultivo em al?ias formadas por dois tipos de leguminosas arbustivas: guandu (Cajanus cajan (L.) Millsp.) e flem?ngia (Flemingia macrophylla), e um controle sem forma??o de al?ias. Combinou-se ainda, dois tipos de aduba??o de plantio: com e sem termofosfato magnesiano (Yoorin Master 1). O experimento foi conduzido nas condi??es da Baixada Fluminense no Campus da UFRRJ, Departamento de Fitotecnia, num delineamento de parcelas subdivididas em blocos ao acaso. Houve menor mortalidade de plantas nas al?ias formadas por guandu quando comparada com as formadas por flem?ngia ou no tratamento controle. A aplica??o de termofosfato n?o teve qualquer efeito. A maior produtividade de infloresc?ncias ocorreu nas al?ias formadas por flem?ngia, seguida pelo guando e a testemunha. A adi??o de termofosfato n?o afetou a produ??o de infloresc?ncias. O n?mero de perfilhos, foi afetado pela posi??o da planta na parcela: as da linha central tenderam a ter mais perfilhos do que as laterais. A ?rea foliar das plantas de helic?nia foi maior nos tratamentos com termofosfato, independentemente do tipo de al?ia.
144

Simbiose feij?o-caupi e riz?bio: diversidade de bact?rias associadas aos n?dulos / Symbiosis cowpea and rhizobia: bacteria diversity associated to root nodules

LEITE, Jakson 27 February 2015 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-08-23T18:13:31Z No. of bitstreams: 1 2015 - Jakson Leite.pdf: 1055808 bytes, checksum: fa105f74410a81a1f30e45ae5e911c9d (MD5) / Made available in DSpace on 2017-08-23T18:13:31Z (GMT). No. of bitstreams: 1 2015 - Jakson Leite.pdf: 1055808 bytes, checksum: fa105f74410a81a1f30e45ae5e911c9d (MD5) Previous issue date: 2015-02-27 / CAPES / Cowpea [Vigna unguiculata (L.) Walp] is an important crop in northeastern Brazil with strategic advantages for production in semi-arid region, such its drought tolerance and good performance in low fertility soils. In addition, the nitrogen (N) fixed in symbiosis with rhizobia eliminates the demand for N fertilizers, with economic, social and environmental benefits. Little is known about the genetic diversity of bacteria associated to cowpea nodules in Brazilian semi-arid. The aim of the study was to characterize the bacterial diversity of Brazilian semi-arid soils associated with nodules of different cowpea cultivars by dependent and independent bacterial cultivation strategy. Initially a collection of 86 bacteria cowpea nodules isolated from semiarid soils was genetically characterized by partial 16S rRNA gene sequencing and symbiotic genes nifH and nodC. The sequences were compared with the NCBI database to identify isolates and phylogenetic relationships were built. In another study, we applied the independent cultivation method to evaluate bacterial communities associated with the nodules of two cowpea cultivars (BRS and BRS Acau? Pujante), in Ultisol with no history of cowpea cultivation. Nodules (N) were collected 35 days after germination, and soil samples (BS) from 0-20 cm deeper. DNA was extracted for analysis of bacterial communities with 454 pyrosequencing of the 16S ribosomal gene rRNA. The analysis of the diversity of the bacterial collection of the nodules 54 of the 86 isolates were Bradyrhizobium. Other (32) belong to Rhizobium (13) and Microvirga (1), Alfaproteobact?ria class; Burkholderia (8), and Ralstonia (1), Betaproteobacteria class; Acinetobacter (1), Cronobacter (3), Enterobacter (1), and Pantoea (1), Gamaproteobact?ria; and Leifsonia (3), phylum Actinobacteria. As Bradyrhizobium predominated, analyzes were performed with the almost full 16S rRNA, nifH and nodC and isolates were distributed in 5 lines: 16S rRNA type I (44 isolates), type II (6), Type III (1), Type IV ( 2) and type IV (1). Phylogenetic analysis of the 16S rRNA gene grouped the Type I strain in the large group Bradyrhizobium japonicum and close to the type strain of Bradyrhizobium yuanmingense. The analyses of the nifH and nodC gene separated the isolates in 5 symbiotic lines (I, II, III, IV and IV) and were congruent among them, which supports the theory of monophyletic in origin symbiotic gene Bradyhrizobium. The symbiotic lineages I and II are nearby and correspond to all isolates with 16S rRNA type I, being the dominant group associated with nodules. The partial 16S rRNA gene sequencing of bacterial communities showed high diversity in the three environments (BS, RS and N). The communities associated with the nodes were significantly different (p> 0.01) from the surrounding nodules (LS and RS). Phyla Actinobacteria, Bacteriodetes, Proteobacteria were plentiful for BS and RS. In nodes, the Proteobacteria and Bacteriodetes phyla predominated, Gammaproteobacteria being (58.8%) and Alphaproteobacteria (37.4%) in the phylum Proteobacteria and dominant Flavobacteriia (84.8%) and Sphingobacteriia (10.9%) in the phylum Bacteriodetes. For gender, Chryseobacterium, Entreobacter and Bradyrhizobium dominate in all nodes samples where Chryseobacterium prevailed in BRS Acau? and Enterobacter in BRS Pujante. / O feij?o-caupi [Vigna unguiculata (L.) Walp] ? uma das principais culturas no Nordeste do Brasil com vantagens estrat?gicas para produ??o no semi?rido, como toler?ncia a seca e bom desempenho em solos de baixa fertilidade. Al?m disso, fixa N em simbiose com riz?bios eliminando a demanda de fertilizantes nitrogenados, com benef?cios econ?micos, sociais e ambientais. Pouco se sabe sobre a diversidade gen?tica de bact?rias associadas aos n?dulos de feij?o-caupi no semi?rido. O objetivo do estudo foi caracterizar a diversidade de bact?rias de solos do semi?rido brasileiro associadas aos n?dulos de diferentes cultivares de feij?o-caupi com arbordagem que depende e independe de cultivo das bact?rias. Inicialmente uma cole??o de 86 bact?rias de n?dulos de feij?o-caupi isoladas de solos do semi?rido foi caracterizada geneticamente pelo sequenciamento parcial do gene 16S rRNA e dos genes simbi?ticos nifH e nodC. As sequ?ncias foram comparadas com as do banco de dados do NCBI para identificar os isolados e as rela??es filogen?ticas dos mesmos com as de esp?cies conhecidas. Em outro estudo, aplicou-se o m?todo independente de cultivo para avaliar comunidades de bact?rias associadas aos n?dulos de dois cultivares de feij?o-caupi (BRS Pujante e BRS Acau?), em Argissolo Amarelo sem hist?rico de uso com a lavoura. Os n?dulos (N) foram coletados 35 dias ap?s a germina??o e a amostragem do solo (BS) de 0-20 cm. O DNA das amostras foi extra?do para an?lises das comunidades bacterianas com 454 pirosequenciamento do gene ribossomal 16S rRNA. Na an?lise da diversidade da cole??o de n?dulos 54 dos 86 dos isolados foram de Bradyrhizobium. Os demais (32) pertencem aos g?neros Rhizobium (13) e Microvirga (1), classe Alfaproteobact?ria; Burkholderia (8) e Ralstonia (1), classe Betaproteobact?ria; Acinetobacter (1), Cronobacter (3), Enterobacter (1) e Pantoea (1), Gamaproteobact?ria; e Leifsonia (3), filo Actinobact?ria. Como Bradyrhizobium predominou, foram feitas an?lises com os genes 16S rRNA, nifH e nodC e os isolados distribu?ram-se em 5 linhagens: 16S rRNA tipo I (44 isolados), tipo II (6), tipo III (1), tipo IV (2) e tipo IV (1). A an?lise filogen?tica do gene 16S rRNA agrupou a linhagem tipo I no grande grupo Bradyrhizobium japonicum e pr?ximo da estirpe tipo de Bradyrhizobium yuanmingense. A an?lise dos genes nifH e nodC separou os isolados em 5 linhagens simbi?ticas (I, II, III, IV e IV) e as ?rvores foram congruentes, o que suporta a teoria da origem monofil?tica de genes simbi?ticos em Bradyhrizobium. As linhagens simbi?ticas I e II s?o pr?ximas e correspondem a todos os isolados com 16S rRNA tipo I, sendo o grupo dominante associado aos nodulos. O sequenciamento parcial do gene 16S rRNA das comunidades bacterianas mostrou alta diversidade nos tr?s ambientes (BS, RS e N). As comunidades associadas aos n?dulos foram significativamente diferentes (p> 0,01) das que cercam os n?dulos (LS e RS). Os filos Actinobacteria, Bacteriodetes, Proteobacteria foram abundantes para BS e RS. Em n?dulos, os filos Proteobacteria e Bacteriodetes predominaram, sendo Gammaproteobacteria (58,8%) e Alphaproteobacteria (37,4%) dominantes no filo Proteobacteria e Flavobacteriia (84,8%) e Sphingobacteriia (10,9%) no filo Bacteriodetes. Para g?nero, Chryseobacterium, Entreobacter e Bradyrhizobium dominam em todas as amostras de n?dulos, onde Chryseobacterium predominou em BRS Acau? e Enterobacter em BRS Pujante.
145

Fracionamento isot?pico do 15N na fixa??o biol?gica de nitrog?nio na soja em fun??o da intensidade de luz e estirpe de Bradyrhizobium spp. Inoculada / Isotopic fractionation of 15N in nitrogen fixation in soybean due to light intensity and Bradyrhizobium spp. strain inoculated

Ara?jo, Karla Emanuelle Campos 29 July 2014 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-08-28T14:10:07Z No. of bitstreams: 1 2014 - Karla Emanuelle Campos Araujo.pdf: 681239 bytes, checksum: 370286856e74db8636cdc28b6d35e0b6 (MD5) / Made available in DSpace on 2017-08-28T14:10:07Z (GMT). No. of bitstreams: 1 2014 - Karla Emanuelle Campos Araujo.pdf: 681239 bytes, checksum: 370286856e74db8636cdc28b6d35e0b6 (MD5) Previous issue date: 2014-07-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / ARAUJO, Karla Emanuelle Campos. Isotopic fractionation of 15N in nitrogen fixation in soybean due to light intensity and Bradyrhizobium spp. strain inoculated. 2014. 40f. Dissertation (Master in Plant Science). Institute of Agronomy, Department of Plant Science, Federal Rural University of Rio de Janeiro, Serop?dica, RJ, 2014. This work aimed to study the isotopic fractionation of N from BNF in stems function and light intensity in soybean plant symbiosis with Bradyrhizobium. The 'B' value was evaluated for ten Bradyrhizobium strains, as well as their interaction with the soybean plant (Glycine max L.). The experiment was conducted at Embrapa greenhouse Agrobiologia, Serop?dica, RJ. The soybean plants inoculated with the different strains of Bradyrhizobium and a control not inoculated, were grown under conditions similar to Leonard vessels using substrate of sand and vermiculite in a 2: 1 (v / v). In the second experiment to assess the value 'B' of the resulting symbiosis BNF among cultivars (cv) of soybean BRS 133, BRS 184, MONSOY9144 nine Bradyrhizobium. Soybean plants in all the treatments, were grown under the same conditions, the soybean cultivation was performed in vessels Leonard with sand and perlite substrate in the proportion 1: 1 (v / v). In both experiments after 47 days of planting the plants were harvested and calculated the value 'B'. In the third experiment evaluated the effect of different strains of Bradyrhizobium and the reduction in the intensity of light on natural abundance of 15N N2 fixed by the strains in symbiosis with soybean cv BRS 133. An experiment was conducted in the experimental field of Embrapa Agrobiology. The soybean plants inoculated with 11 Bradyrhizobium and treatment uninoculated were grown under similar conditions in plastic pots with sand substrate and pearlite in the proportion 1: 1 (v / v) .After 75 days after planting the plants were collected and calculated the value 'B'.No experiment 1, the values of ?Bpa? ranged between -2 and -4 ?, according to the strain used. In experiment 2, the values of ?Bpa? showed no difference between the soybean cultivars inoculated with Bradyrhizobium as the isotopic abundance of 15N in plants grown entirely dependent on FBN. There was a tendency for the abundance of 15N values in ?Bpa? treatment of plants inoculated with strains of B. elkanii to be less negative than in the case of plants inoculated with B. japonicum. In experiment 3 the values of ?B?PA showed natural 15N abundance values significantly more negative than the shaded plants. There was a tendency for the abundance of 15N in the shoot (and values of ?Bpa?) treatment of the plants inoculated with B. japonicum strains to be less negative than in the case of plants inoculated with B. elkanii. For the determination of the 'B' value, the plants should be in the same stage of maturity that being used to sample the plants in the field, to assess the value 'B' in low light intensity conditions (green house) can lead to the result of a 'B' value less negative than that given in full sun and so probably less appropriate uses it to calculate the contribution of BNF in legume under field conditions. / ARAUJO, Karla Emanuelle Campos. Fracionamento isot?pico do 15N na fixa??o biol?gica de nitrog?nio na soja em fun??o da intensidade de luz e estirpe de Bradyrhizobium spp. inoculada. 2014. 40f. Disserta??o (Mestrado em Fitotecnia). Instituto de Agronomia, Departamento de Fitotecnia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2014. Este trabalho teve como objetivo estudar o fracionamento isot?pico do N proveniente da FBN, em fun??o de estipes e intensidade de luz na simbiose da planta de soja com Bradyrhizobium. O valor ?B? foi avaliado para dez estirpes de Bradyrhizobium, assim como sua intera??o com a planta de soja (Glycine max, L.). Foi conduzido o experimento na casa de vegeta??o da Embrapa Agrobiologia, Serop?dica, RJ. As plantas de soja inoculadas com as diferentes estirpes de Bradyrhizobium e um controle, n?o inoculado, foram crescidas em condi??es semelhantes em vasos Leonard, utilizando substrato de areia e vermiculita na propor??o 2:1 (v/v). No segundo experimento para avaliar o valor ?B? da FBN resultante da simbiose entre as cultivares (cv) de soja BRS 133, BRS 184, MONSOY9144 e nove estirpes de Bradyrhizobium. As plantas de soja para todos os tratamentos, foram crescidas em condi??es iguais, o cultivo da soja foi realizado em vasos Leonard, utilizando substrato de areia e perlita na propor??o 1:1 (v/v). Nos dois experimentos ap?s 47 dias do plantio as plantas foram colhidas e calculou o valor ?B?. No terceiro experimento avaliou-se o efeito de diferentes estirpes de Bradyrhizobium e da redu??o na intensidade de luz sobre abund?ncia natural de 15N do N2 fixado pelas estirpes em simbiose com a cv. de soja BRS 133. Foi conduzido um experimento no campo experimental da Embrapa Agrobiologia. As plantas de soja inoculadas com 11 estirpes de Bradyrhizobium e um tratamento n?o inoculado, foram crescidas em condi??es semelhantes em vasos pl?sticos, utilizando substrato de areia e perlita na propor??o 1:1 (v/v). Ap?s 75 dias do plantio as plantas foram colhidas e calculou-se o valor ?B?. No experimento 1, os valores de ?Bpa? variaram entre -2 e -4 ?, de acordo com a estirpe usada. No experimento 2, os valores de ?Bpa? n?o apresentaram diferen?a entre as cultivares de soja inoculadas com os Bradyrhizobium quanto a abund?ncia isot?pica de 15N nas plantas crescida inteiramente dependente da FBN. Houve uma tend?ncia para a abund?ncia de 15N nos valores de ?Bpa? das plantas dos tratamentos inoculados com estirpes de B. elkanii a serem menos negativo do que no caso de plantas inoculadas com B. japonicum. No experimento 3 os valores de ?Bpa? apresentaram valores de abund?ncia natural de 15N significativamente mais negativos do que as plantas sombreadas. Houve uma tend?ncia para a abund?ncia de 15N na parte a?rea (e os valores de ?Bpa?) das plantas dos tratamentos inoculados com estirpes de B. japonicum a serem menos negativo do que no caso de plantas inoculadas com B. elkanii. Para ? determina??o do valor ?B?, as plantas devem estar no mesmo est?gio de maturidade que as que est?o sendo utilizadas para amostrar as plantas no campo, a avalia??o do valor ?B? em condi??es de intensidade de luz reduzida (casa de vegeta??o) pode levar ao resultado de um valor ?B? menos negativo do que aquele determinado em pleno sol e assim provavelmente menos apropriado utiliza-lo, para calcular a contribui??o da FBN em leguminosa em condi??es de campo.
146

Emiss?es de N2O do solo de cana-de-a??car plantada com fungicida via solo e fertilizada com ureia / Emissions of N2O from a sugarcane soil planted with soil fungicide and fertilized with urea

Silva, Erika Caitano da 27 July 2015 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-09-26T17:06:38Z No. of bitstreams: 1 2015 - Erika Caitano da Silva.pdf: 1958258 bytes, checksum: 61fcc63494dc0f8b0966ba187b5280a0 (MD5) / Made available in DSpace on 2017-09-26T17:06:38Z (GMT). No. of bitstreams: 1 2015 - Erika Caitano da Silva.pdf: 1958258 bytes, checksum: 61fcc63494dc0f8b0966ba187b5280a0 (MD5) Previous issue date: 2015-07-27 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The objective of this study was to evaluate the efficiency of a fungicide of the strobilurin group in reducing soil N2O production, a potent greenhouse gas, and a possible positive effect on the N use efficiency by sugarcane. Laboratory studies were conducted to evaluate the effect of fungicide in soil fertilized with N on N2O emissions, as well as greenhouse and field experiments to study the fungicide as controller of urea and ammonium nitrate induction of N2O emissions and as an enhancer of fertilizer N use efficiency by sugarcane. In addition to the monitoring of soil N2O fluxes with static chambers sugarcane leaves were collected for analysis of soluble forms of N and nitrate reductase activity together with plant parameters to estimate yield and the efficiency of fertilizer N use. Laboratory tests revealed the fungicide was capable of reducing soil N2O emissions. Regardless of N source, the fungicide did not affect the analyses of enzymes and plant N fractions in sugarcane, but there was a downward trend of N2O fluxes in the soil treated with urea in the greenhouse experiment. In the field experiment, N2O fluxes were 6 to 89 ?g N m-2h-1, 24 to 795 ?g N m-2h-1 and 27 to 508 ?g N m-2h-1 respectively to the control (no added N), urea and urea + fungicide treatments, indicating that N2O emissions were reduced in approximately 30% by the fungicide. The treatment with ammonium nitrate did not induce N2O emissions from soil. There was no significant difference between treatments in all analyses of soluble fractions and enzyme activity. Based on the dimensions of stalks, sugarcane yield was estimated at 190 Mg ha-1for the control treatment (without added N) and at 238 Mg ha-1 for urea treatment. The application of fungicide had no effect on yield. The use of fungicide reduced soil N2O emissions, but does not induce greater N use efficiency by sugarcane / O objetivo deste trabalho foi avaliar a efici?ncia de fungicida do grupo das estrobilurinas na redu??o da produ??o de N2O no solo, um potente g?s de efeito estufa, al?m de poss?veis efeitos positivos na efici?ncia de uso de N pela cana-de-a??car. Foram conduzidos estudos em laborat?rio para avaliar o efeito do fungicida em solo fertilizado com N sobre as emiss?es de N2O, assim como um ensaio em casa de vegeta??o e outro em campo, onde se estudaram a ureia e o nitrato de am?nio, tratados ou n?o com fungicida, sobre as emiss?es de N2O e indicadores de efici?ncia de uso de N pela cana-de-a??car. Al?m do monitoramento dos fluxos de N2O com c?maras est?ticas, foram tamb?m coletadas folhas da cultura para an?lise das fra??es sol?veis de N e an?lise da enzima nitrato redutase, incluindo-se tamb?m a estimativa da produtividade e efici?ncia do uso de N. Os ensaios de laborat?rio mostraram que o fungicida aplicado ao solo reduz emiss?es de N2O. No ensaio em casa-de-vegeta??o, a an?lise de enzimas e fra??es de N na cana-de-a??car n?os e alteraram com o uso do fungicida, independente da fonte de N, mas houve tend?ncia de redu??o dos fluxos de N2O no solo tratado com ureia. No ensaio de campo, os fluxos de N2O foram de 6 a 89 ?g N m-2h-1, 24 a 795 N m-2 h-1 e 27 a 508 N m-2 h-1respectivamente para os tratamentos controle (sem adi??o de N), ureia e ureia +fungicida, indicando queda nas emiss?es de N2O de aproximadamente 30% no tratamento com fungicida.O tratamento com nitrato de am?nio n?o induziu emiss?es de N2O do solo.N?o houve diferen?a significativa entre os tratamentos em todas as an?lises das fra??es sol?veis e tamb?m na an?lise enzim?tica. A produtividade de colmos (TCH), estimada a partir das dimens?es dos colmos, variou significativamente de 190 Mg ha-1, no tratamento controle (sem adi??o de N), para 238 Mg ha-1, no tratamento com ureia, por?m a aplica??o do produto n?o influenciou na produ??o da cultura. O uso de fungicida reduz emiss?es de N2O, por?m n?o induz maior efici?ncia de uso de N pela cana-de-a??car
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Influ?ncia da densidade de semeadura do feijoeiro comum na incid?ncia de plantas espont?neas em sistema org?nico de produ??o / Influence of the sowing density of common bean on weed incidence in organic production system

Silva, Mara Alexandre da 29 August 2014 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-09-28T12:19:16Z No. of bitstreams: 1 2014 - Mara Alexandre da Silva.pdf: 458810 bytes, checksum: 70a72dfd6d35926572affcb5392ec6f7 (MD5) / Made available in DSpace on 2017-09-28T12:19:16Z (GMT). No. of bitstreams: 1 2014 - Mara Alexandre da Silva.pdf: 458810 bytes, checksum: 70a72dfd6d35926572affcb5392ec6f7 (MD5) Previous issue date: 2014-08-29 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / Organic production is an alternative for family farmers where practices to reduce costs and to preserve natural resources can add value to the product and improve quality of life. The weeds can cause losses in crops, by reduction of income, increase in pests and diseases, non uniformity in maturity and difficulties for harvesting. The objective of this study was to evaluate the performance of common bean cultivars (Phaseolus vulgaris) at different sowing densities regarding the incidence of weeds in organic production system. Two field experiments were conducted in the Agroecological Production Integrated System of 47 km in Serop?dica-RJ, in the years 2013 and 2014, in a randomized block design with four replications. In 2013 a 4x3 factorial was used, combining four cultivars (Ouro Negro, Manteig?o, Radiante and Apor?) and three densities (8, 13 and 18 plants m-1 linear). In 2014 a 2x3 factorial was used, between two cultivars (Manteig?o and Ouro Negro) and three treatments (13 plants m-1 with manual cleaning of weeds, 13 and 18 plants m-1 without cleaning). To obtain the desired plant population, 50% more seeds were sown in each treatment and plants were thinned 15 days after. Sampling was carried out at the flowering stage to assess biomass and nodulation of bean and biomass of weeds, and at physiological maturity to evaluate grain yield. In 2013, the largest shoot and root dry mass and number of nodules per plant occurred in the density of 8 plant m-1. Increased planting density reduced the number of pods per plant, with no effect of density on grain yield. The lower biomass of weeds was observed at densities of 13 and 18 plant m-1, and also for cutivars Manteig?o and Ouro Negro. In 2014, treatment with 13 plants m-1 with cleaning showed greater dry mass of shoots and roots per plant. At flowering, treatment with 13 plants m-1 showed higher dry matter and number of weeds. The cultivar Ouro Negro showed higher grain yield at density of 13 plants m-1 with cleaning, followed by 18 plants m-1, with no differences between treatments for cultivar Manteig?o. The treatment with 18 plants m-1 showed lower mass of weeds at bean flowering, similar to the treatment with 13 plants m-1 with cleaning. Plots with cultivar Manteig?o had the highest dry matter of weeds in the three density treatments. Grain yield did not differ significantly among cultivars, ranging in 2013 from 1310 kg ha-1 for Apor? and 1409 kg ha-1 for Manteig?o, and in 2014 of 1298 and 1419 kg ha-1 for Manteig?o and Ouro Negro. It is concluded that increasing plant density reduced the incidence of weeds and did not affect grain yield. It was also carried out a field trial in 2013 in family agricultural establishment in the city of Teresopolis-RJ, in order to encourage the cultivation of special beans and to experience economic and social strategies of reproduction. The experiment had a 4x2 factorial with four replications, using four cultivars (Apor?, Manteig?o, Radiante and Valente) and two treatments (with and without commercial inoculant with rhizobia). Grain yield of the four cultivars did not differ between the treatments in the absence and presence of seed inoculation with rhizobia / A produ??o org?nica constitui uma alternativa para a agricultura familiar, onde pr?ticas para diminuir os custos de produ??o e preserva??o dos recursos naturais agregariam valor ao produto e qualidade de vida. As plantas espont?neas podem causar perdas em cultivos, pela redu??o do rendimento, aumento de pragas e doen?as, desuniformidade na matura??o e dificuldades na colheita. O objetivo deste trabalho foi avaliar o desempenho de cultivares de feijoeiro comum (Phaseolus vulgaris) em diferentes densidades de semeadura, com rela??o ? incid?ncia de plantas espont?neas em sistema org?nico de produ??o. Foram conduzidos dois experimentos de campo no Sistema Integrado de Produ??o Agroecol?gica do km 47, em Serop?dica-RJ, nos anos de 2013 e 2014, em blocos ao acaso com quatro repeti??es. Em 2013 foi utilizado esquema fatorial 4x3, combinando quatro cultivares (Ouro Negro, Manteig?o, Radiante e Apor?) e tr?s densidades (8, 13 e 18 plantas m-1 linear) e em 2014 utilizou-se esquema fatorial 2x3, entre duas cultivares (Manteig?o e Ouro Negro) e tr?s tratamentos (densidade de 13 plantas m-1 com limpeza manual de plantas espont?neas, densidades de 13 e 18 plantas m-1 sem limpeza). Para obten??o da popula??o desejada, foram semeadas 50% mais sementes em cada tratamento, e 15 dias ap?s realizou-se desbaste. Foram efetuadas amostragens no est?dio de flora??o para avalia??o de biomassa e nodula??o do feijoeiro e da biomassa de plantas espont?neas, e na matura??o fisiol?gica para avalia??o do rendimento. Em 2013, a maior massa seca de parte a?rea e raiz e n?mero de n?dulos por planta ocorreu na densidade de 8 plantas m-1. O aumento da densidade de plantio reduziu o n?mero de vagens por planta, sem efeito da densidade na produtividade de gr?os. A menor massa de plantas espont?neas foi observada nas densidades de 13 e 18 plantas m-1, e com as cultivares Manteig?o e Ouro Negro. Em 2014, o tratamento com 13 plantas m-1 com limpeza apresentou maior massa seca de parte a?rea e raiz por planta. Na flora??o, o tratamento com 13 plantas m-1 sem limpeza apresentou maior massa seca e n?mero de espont?neas. A cultivar Ouro Negro apresentou maior produ??o de gr?os no tratamento de 13 plantas m-1 com limpeza, seguida por 18 plantas m-1, sem diferen?as entre tratamentos na cultivar Manteig?o. O tratamento com 18 plantas m-1 apresentou menor massa de espont?neas na flora??o do feijoeiro, similar a 13 plantas m- 1 com limpeza. A cultivar Manteig?o apresentou maior massa de espont?neas nos tr?s tratamentos. A produ??o de gr?os n?o diferiu significativamente entre as cultivares, variando em 2013 entre 1310 kg ha-1 para Apor? e 1409 kg ha-1 para Manteig?o, e em 2014 com 1298 e 1419 kg ha-1 para Manteig?o e Ouro Negro. Conclui-se que o aumento da densidade de plantio reduziu a incid?ncia de plantas espont?neas e n?o afetou a produtividade de gr?os do feijoeiro. Foi tamb?m conduzido um experimento de campo em 2013 em estabelecimento agr?cola familiar no munic?pio de Teres?polis-RJ, com o objetivo de incentivar o cultivo de feij?es especiais e vivenciar estrat?gias de reprodu??o econ?mica e social. O experimento tinha esquema fatorial 4x2 com quatro repeti??es, entre quatro cultivares (Apor?, Manteig?o, Radiante e Valente) e dois tratamentos (com e sem uso de inoculante comercial de riz?bio). A produ??o de gr?os das quatro cultivares n?o diferiu entre os tratamentos na aus?ncia e na presen?a de inocula??o de sementes com riz?bio.
148

Toxidez do alum?nio e efici?ncia de diferentes tipos de poda em Bauhinia variegata L. / Toxicity of aluminum and efficiency of different types of pruning in Bauhinia variegata L.

Machado, Alessandra de Lima 27 February 2015 (has links)
Submitted by Celso Magalhaes (celsomagalhaes@ufrrj.br) on 2017-10-10T14:30:31Z No. of bitstreams: 1 2015 - Alessandra de Lima Machado.pdf: 1487065 bytes, checksum: cd9c7f300bf5103dbe9de9f9244f7bbb (MD5) / Made available in DSpace on 2017-10-10T14:30:33Z (GMT). No. of bitstreams: 1 2015 - Alessandra de Lima Machado.pdf: 1487065 bytes, checksum: cd9c7f300bf5103dbe9de9f9244f7bbb (MD5) Previous issue date: 2015-02-27 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior - CAPES / The evaluation of toxicity caused by aluminum (Al) trees used in urban forestry is of great importance for the development of seedlings and plantings in appropriate conditions. The tree species Bauhinia variegata L. is commonly used in urban afforestation, requiring knowledge of their nutritional requirements and conflicts related to the presence of trees on the streets, for example, interference in the electricity distribution networks. Pruning is the main practice management done on trees planted in the streets. Optimizing the pruning process can generate benefits such as less frequent pruning, lower cost and higher efficiency, especially for the energy sector. The objectives of this study were to evaluate the influence of Al in the development of Bauhinia variegata seedlings, and analyze the effectiveness of different types of pruning cut with or without the use of Al, in order to reduce shoots. This study was developed in two stages, resulting in two chapters. The first, directly related to mineral nutrition, with the study aimed to investigate the effects of Al toxicity on growth and root development. Experiments were performed in simple and complete nutrient solution and in acid soil substrate. The second chapter presents the study to assess the effectiveness of different types of pruning cut made in adult plants of Bauhinia variegata, with and without the use of Al as a growth inhibitor. The results indicated that this species is sensitive to the toxicity of Al from the concentration of 50 ?M, being observed decrease in root growth rate and relative root elongation. The critical dose to paralyze Al root growth were 151,48 ?M of Al in simple nutrient solution and 388,72 ?M of Al in complete nutrient solution. Al caused increase in the diameter of the roots of seedlings from the concentration at 400 ?M solution. The application of limestone in acid soil favored the growth of plants of Bauhinia variegata, resulting in higher dry matter weight values of root and shoot dry mass weight. When pruning was held close to the trunk and Al application shoots were not observed until the last evaluation at 210 days after pruning. In pruning held close to the trunk without Al application occurred shoots. In the cuttings leaving stump 20 and 40 cm, with or without the application of Al occurred shoots / A avalia??o da toxidez causada pelo alum?nio (Al) em ?rvores utilizadas na arboriza??o urbana ? de grande import?ncia para o desenvolvimento de mudas e plantios em condi??es adequadas. A esp?cie arb?rea Bauhinia variegata L., ? comumente utilizada na arboriza??o de urbana, sendo necess?rio o conhecimento das suas exig?ncias nutricionais e dos conflitos relacionados ? presen?a das ?rvores nas ruas, como, por exemplo, a interfer?ncia nas redes de distribui??o de energia el?trica. A poda ? a principal pr?tica de manejo realizada nas ?rvores plantadas nas ruas. A otimiza??o do processo de podas pode gerar benef?cios como menor frequ?ncia de podas, menor custo e maior efici?ncia, especialmente para o setor el?trico. Os objetivos deste trabalho foram avaliar a influ?ncia do Al no desenvolvimento de mudas de Bauhinia variegata, e analisar a efici?ncia de diferentes tipos de corte em poda associado ou n?o ao uso de Al, de modo a diminuir brota??es. Estes estudos foram desenvolvidos em duas etapas, resultando assim em dois cap?tulos. O primeiro, relacionado diretamente ? nutri??o mineral, com o estudo direcionado ? investiga??o dos efeitos da toxidez do Al no crescimento e desenvolvimento de ra?zes. Foram realizados experimentos em solu??o nutritiva simples e completa e em substrato de solo ?cido. O segundo cap?tulo apresenta o estudo de avalia??o da efici?ncia de diferentes tipos de corte em podas realizadas em plantas adultas de Bauhinia variegata, com e sem a utiliza??o de Al como inibidor de crescimento. Os resultados indicaram que esta esp?cie ? sens?vel ? toxidez do Al a partir da concentra??o de 50 ?M, sendo observada diminui??o na taxa de crescimento radicular e na elonga??o radicular relativa. As doses cr?tica de Al que paralisaria o crescimento radicular foram de 151,48 ?M de Al em solu??o nutritiva simples e de 388,72 ?M de Al em solu??o nutritiva completa. O Al provocou aumento do di?metro das ra?zes de mudas a partir da concentra??o em solu??o de 400 ?M. A aplica??o de calc?rio em solo ?cido favoreceu o crescimento de plantas de Bauhinia variegata, resultando em maiores valores de peso de massa seca de raiz e peso de massa seca de parte a?rea. Quando a poda foi realizada rente ao tronco principal e com aplica??o de Al n?o foram observadas brota??es at? a ?ltima avalia??o, aos 210 dias ap?s a poda. Na poda realizada rente ao tronco principal sem aplica??o de Al ocorreram brota??es. Nas podas deixando toco de 20 e 40 cm, com ou sem aplica??o de Al, ocorreram brota??es.
149

Efici?ncia reprodutiva em ?guas assintom?ticas portadoras de Theileria equi submetidas a um programa de transfer?ncia de embri?o. / Reproductive efficiency in mares with asymptomatic for Theileria equi undergo a program for embryo transfer.

Bezerra, Luciana de Lima 10 February 2011 (has links)
Submitted by Sandra Pereira (srpereira@ufrrj.br) on 2017-11-07T11:43:17Z No. of bitstreams: 1 2011 - Luciana de Lima Bezerra.pdf: 823571 bytes, checksum: aeff9177e7ee978c9b6138f66f82aacc (MD5) / Made available in DSpace on 2017-11-07T11:43:17Z (GMT). No. of bitstreams: 1 2011 - Luciana de Lima Bezerra.pdf: 823571 bytes, checksum: aeff9177e7ee978c9b6138f66f82aacc (MD5) Previous issue date: 2011-02-10 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior, CAPES, Brasil. / This study aimed to evaluate the influence of babesiosis in embryo recovery rates, early pregnancy and embryonic loss. The project was carried out in a Central Commercial Embryo Transfer, located in the city of Itaguai, and two farms in the county of Serop?dica-RJ, using animals from the same breed (Mangalarga Marchador). The 13 donors and 40 recipients used in this experiment were positive for Theileria equi confirmed by nested-PCR method . Two embryo collections were performed in donor mares in two consecutive estrous cycles (GID), in sequence these same animals were treated with imidocarb dipropionate (1.2 mg / kg IM.) in order to conduct two more embryo collections in two estrous cycles (GIId). The embryo recipients were divided into two groups of 20 animals each, where one was the control group (IRG), and the other group was treated (GIIr) with 1.2 mg / kg IM imidocarb dipropionate, with the aim of evaluating pregnancy rate at 15, 30, 45 and 60 days. The embryo donors mares had normal erythrocyte before and after treatment with imidocarb dipropionate. ConcerningWBC, the embryo donors showed a decrease in the count of total leukocytes and neutrophils after treatment and a slight increase of lymphocytes and monocytes after treatment. The embryo recipients showed normal erythrocyte and leukocyte counts before and after the treatment with imidocarb dipropionate. After 52 embryo collections performed, embryo recovery rate was 53.84% (14/26) and 65.38% (17/26) ( p> 0,05) for GID and GIId respectively. The pregnancy rate was 70% (14/20) ( p> 0,05) at 15, 30, 45 and 60 days in the Gir and the GIIr was 85% (17/20) ( p> 0,05) at 15 days, 80% (16/20) ( p> 0,05) at 30 , 45 and 60 days. Treatment with imidocarb dipropionate did not improve significantly the reproductive efficiency in an ET program. / Este estudo teve por objetivo avaliar a influ?ncia da babesiose nas taxas de recupera??o embrion?ria, gesta??o e perda embrion?ria precoce. O projeto foi realizado em uma Central Comercial de Transfer?ncia de Embri?o, situado no Munic?pio de Itagua?, e em dois haras no munic?pio de Serop?dica- RJ. Foram utilizadas 13 doadoras e 40 receptoras de embri?o da ra?a Mangalarga Marchador, positivas para Theileria equi atrav?s do m?todo de nested-PCR. Nas ?guas doadoras foram realizados duas coletas de embri?es em dois ciclo estrais consecutivos (GId), em sequ?ncia, esses mesmos animais foram tratados com dipropionato de imidocarb (1,2 mg/kg IM.) para realiza??o de mais duas coletas de embri?es em dois ciclos estrais (GIId). As receptoras de embri?o foram divididas em dois grupos de 20 animais cada, onde um grupo foi o controle (GIr) e, o outro grupo, foi tratado (GIIr) com 1,2 mg/ Kg IM de dipropionato de imidocarb, com intuito de avaliar a taxa de gesta??o aos 15, 30, 45 e 60 dias. As ?guas doadoras apresentaram eritrograma normal antes e ap?s o tratamento com dipropionato de imidocarb, e em rela??o ao leucograma, apresentaram diminui??o na contagem de leuc?citos e neutr?filos totais e discreto aumento de linf?citos e mon?citos somente ap?s o tratamento. As receptoras apresentaram eritrograma e leucograma normal antes e ap?s o tratamento com dipropionato de imidocarb. Ap?s a realiza??o de 52 coletas de embri?o, a taxa de recupera??o embrion?ria foi 53,84% (14/26) e 65,38% (17/26) (p> 0,05) para GId e GIId respectivamente. A taxa de gesta??o foi de 70% (14/20) (p> 0,05) aos 15, 30, 45 e 60 dias no grupo GIr e para o GIIr foi 85% (17/20) (p> 0,05) aos 15 dias, 80% (16/20) (p>0,05) aos 30, 45 e 60 dias. O tratamento com dipropionato de imidocarb na forma como foi realizado n?o promoveu melhora significativa na efici?ncia reprodutiva em um programa de TE.
150

Representa??es e trajet?rias em condom?nio popular do Minha Casa, Minha Vida na Baixada Fluminense / Representations and trajectories in a popular condominium of Minha Casa, Minha Vida in Baixada Fluminense

LELIS, Dayana Campos de 05 April 2017 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-01-23T18:57:26Z No. of bitstreams: 1 2017 - Dayana Campos de Lelis.pdf: 3012156 bytes, checksum: ed90fa757d1ef8d909a347904830a09a (MD5) / Made available in DSpace on 2018-01-23T18:57:28Z (GMT). No. of bitstreams: 1 2017 - Dayana Campos de Lelis.pdf: 3012156 bytes, checksum: ed90fa757d1ef8d909a347904830a09a (MD5) Previous issue date: 2017-04-05 / FAPERJ / This text aims to analyze the representations and trajectories of a popular condominium located in the Baixada Fluminense, produced by the Minha Casa, MinhaVida Program. Being the Baixada scenario and locus of several state interventions, a popular condominium of the Minha Casa, Minha Vida Program was taken as a starting point for the present study. This text had a bibliographical review about the representations, the location of Baixada and appointments about condominium, as well as a review on Minha Casa, Minha Vida Program. In addition, this research presents a qualitative methodology, in order to analyze and understand the trajectories of the residents involved in this housing policy. It was sought, therefore, to reach individuals in an attempt not only to see and describe their trajectories and agencies, but to understand them from their stories, condominium life and the perceptions they had about the condominium in this housing policy. It was possible to be verified by the precariousness found, the confrontation in which Says each institution, the difficulty of the residents in knowing who to turn to and the illegalities in the condominium, that such absences indicate how housing and government is produced for the poor through popular housing, and how the state legitimizes the illegalities within the condominium. / Este texto tem por objetivo analisar as representa??es e trajet?rias de um condom?nio popular localizado na Baixada Fluminense, produzido pelo Programa Minha Casa, Minha Vida. Sendo a Baixada cen?rio e l?cus de diversas interven??es estatais, tomou-se como ponto de partida um condom?nio popular do Programa Minha Casa, Minha Vida, para o presente estudo. Este texto contou com uma revis?o bibliogr?fica sobre as representa??es, da Baixada e de nomea??es sobre condom?nio, bem como uma revis?o sobre o Minha Casa, Minha Vida. Al?m disso, este trabalho apresenta uma metodologia qualitativa, a fim de analisar e compreender as trajet?rias dos moradores envolvidos nessa pol?tica habitacional. Buscou-se, portanto, alcan?ar os indiv?duos na tentativa de n?o somente ver e descrever suas trajet?rias e ag?ncias, mas de compreend?-las a partir de suas hist?rias, da vida condominial e das percep??es que estes tinham sobre o condom?nio nesta pol?tica de habita??o. P?de-se constatar mediante as precariedades encontradas, o confronto no que diz cada institui??o, a dificuldade dos moradores em saber a quem recorrer e os ilegalismos no condom?nio, que tais aus?ncias apontam como se produz moradia e governo para os pobres via habita??o popular, e como o Estado legitima os ilegalismos dentro do condom?nio.

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