Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-11-18T16:55:54Z No. of bitstreams: 2 janaina_adna_barbosa_sena.pdf: 803348 bytes, checksum: 7fcbe004c490cd56b913efb2969519b6 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-11-18T16:56:20Z (GMT) No. of bitstreams: 2 janaina_adna_barbosa_sena.pdf: 803348 bytes, checksum: 7fcbe004c490cd56b913efb2969519b6 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Made available in DSpace on 2015-11-18T16:56:20Z (GMT). No. of bitstreams: 2 janaina_adna_barbosa_sena.pdf: 803348 bytes, checksum: 7fcbe004c490cd56b913efb2969519b6 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Previous issue date: 2011-09-26 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) / O experimento foi conduzido no Campus Experimental Moura, no Laborat?rio de Ruminantes do Departamento de Zootecnia da Universidade Federal dos Vales do Jequitinhonha e Mucuri ? Curvelo, MG. Foram utilizados para o ensaio de digestibilidade 12 ovinos, machos mesti?os Santa In?s, alimentados com quatro dietas totais, com diferentes n?veis de substitui??o do feno de Tifton 85 pelo res?duo de maracuj?: 0% (controle); 20%; 40% e 60% de substitui??o. Avaliou-se o consumo e fez-se coleta total de fezes e urina, com devidas amostragens para posteriores an?lises. O delineamento utilizado foi o DIC, com peso inicial como covari?vel. O consumo de nutrientes n?o foi influenciado pelos n?veis de substitui??o. ? exce??o da FDN, n?o houve diferen?a significativa para a digestibilidade aparente dos nutrientes, bem como para o balan?o de nitrog?nio. Para o ensaio de desempenho foram utilizados 20 animais, machos mesti?os Santa In?s, confinados. Os mesmos tratamentos foram testados. Ra??es fornecidas e sobras foram amostradas para an?lises. Pesagens foram realizadas semanalmente para avaliar o ganho de peso. Ao final de 63 dias de confinamento avaliou-se as medidas biom?tricas e os animais foram abatidos. Avaliou-se ent?o, pesos e rendimentos de carca?a, e os componentes n?o-carca?a. O delineamento utilizado foi blocos casualizados, sendo as m?dias submetidas ? an?lise de regress?o pelo PROC GLM do programa estat?stico SAS (SAS, 2002). Os consumos de MS e PB foram influenciados pelos tratamentos, com superioridade para o n?vel de 40% de substitui??o; assim como os ganhos em peso. Para os rendimentos de carca?a os melhores resultados foram registrados para 60% de substitui??o. Para a an?lise de cortes e medidas biom?tricas apenas a paleta e a circunfer?ncia de t?rax diferiram, assim como r?men/ret?culo, omaso e intestino delgado para os componentes n?o-carca?a. Recomenda-se a substitui??o do feno pelo res?duo de maracuj? quando houver redu??o no custo da dieta. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2011. / ABSTRACT The experiment was conducted at Moura?s Experimental Campus, in the Laboratory of Ruminants, Department of Animal Science, University of the Jequitinhonha and Mucuri, in the town of Curvelo, Minas Gerais state, Brazil. There had been used for the digestibility trial 12 sheep, Santa Inez crossbred males fed with four diets in total, with different levels of substitution of Tifton 85 hay by the residue of passion fruit: 0% (control), 20%, 40% and 60% replacements. Consumption was evaluated and there was a total collection of feces and urine, with appropriate samples for further analysis. The experimental design was randomized with initial weight as covariate. The nutrient intake was not influenced by levels of substitution. With the exception of the NDF, there was no significant difference in the apparent digestibility of nutrients, or with nitrogen balance. For the performance test were used 20 confined animals, male crossbred Santa In?s. The same treatments were tested. Rations were supplied and sampled for analysis. Weight measurements were performed weekly to assess weight gain. At the end of 63 days of confinement was evaluated biometric measurements and the animals were slaughtered. Therefore, there have been analyzed, weights and carcass, and non-housing components. The experimental design was randomized blocks, and the means subjected to regression analysis using PROC GLM of SAS statistical software (SAS, 2002). The intake of DM and CP were influenced by treatments with high values to the level of 40% substitution, as well as gains in weight. For carcass yield the best results were recorded for 60% substitution. For analysis of cuts and biometric measures only the palette and chest circumference differed, as well as rumen/reticulum, omasum and small intestine for non-housing components. It is recommended to replace the hay residue of passion when there is a reduction in the cost of the diet

Submitted by Automa??o e Estat?stica (sst@bczm.ufrn.br) on 2017-09-05T19:45:51Z No. of bitstreams: 1 NathaliaRafaelaFidelisCampos_DISSERT.pdf: 1306150 bytes, checksum: 7777cbe027762ca03201c89165375936 (MD5) / Approved for entry into archive by Arlan Eloi Leite Silva (eloihistoriador@yahoo.com.br) on 2017-09-15T21:29:08Z (GMT) No. of bitstreams: 1 NathaliaRafaelaFidelisCampos_DISSERT.pdf: 1306150 bytes, checksum: 7777cbe027762ca03201c89165375936 (MD5) / Made available in DSpace on 2017-09-15T21:29:08Z (GMT). No. of bitstreams: 1 NathaliaRafaelaFidelisCampos_DISSERT.pdf: 1306150 bytes, checksum: 7777cbe027762ca03201c89165375936 (MD5) Previous issue date: 2017-02-20 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / Objetivou-se avaliar a influ?ncia da suplementa??o alimentar sobre o desempenho de ovelhas e cordeiros mantidos em pasto diferido durante o ter?o final de gesta??o at? o desmame. O experimento foi conduzido na ?rea experimental do Grupo de Estudos em Forragicultura (GEFOR), localizado no Campus Maca?ba da Universidade Federal do Rio Grande do Norte ? UFRN, no per?odo de 30 de dezembro de 2015 a 19 de junho de 2016. Foram utilizadas 55 matrizes, sem padr?o racial definido, com m?dia de 120 dias de gesta??o no in?cio do experimento. Foram gerados 61 cordeiros, provenientes de partos simples e gemelares. As matrizes foram distribu?das de forma aleat?ria em tr?s tratamentos: suplementa??o com mistura m?ltipla e suplementa??o concentrada a 0,4% e 0,8% do peso vivo. As matrizes permaneceram em pasto diferido de Brachiaria brizantha cv. Marandu em per?odo diurno, sendo recolhidas a baias coletivas onde recebiam os suplementos. O desempenho das matrizes foi avaliado por meio do peso vivo, sendo medidos ganho m?dio di?rio e ganho de peso total. O desempenho das crias foi avaliado a partir do peso ao nascer, com pesagens semanais at? a idade de 90 dias (idade de desmame). Foi poss?vel acompanhar o ganho de peso m?dio di?rio (GMD) e o ganho de peso total (GT). As medidas biom?tricas foram iniciadas aos 30 dias de idade, quinzenalmente, at? 90 dias de idade de cada cria. Houve efeito (P<0,05) da suplementa??o alimentar e do tipo de parto no peso vivo ? pari??o das matrizes. Ovelhas suplementadas com concentrado em n?vel de 0,8% do peso vivo tiveram as menores perdas de peso que aquelas suplementadas com concentrado em n?vel de 0,4% e mistura m?ltipla. Houve efeito (P<0,05) da suplementa??o alimentar da matriz, do sexo da cria, do tipo de parto e da ra?a do reprodutor sobre o peso vivo da cria, ao nascimento, aos 30, 60 e 90 dias de idade. As vari?veis apresentadas causaram efeito (P<0,05) no GMD e no GT dos cordeiros do nascimento ao desmame. As medidas biom?tricas dos cordeiros sofreram efeito significativo (P<0,05) da suplementa??o alimentar da matriz e do tipo do parto, simples ou gemelar. A utiliza??o de suplementa??o concentrada em n?vel de 0,4% do peso vivo possibilita melhores ?ndices produtivos e reprodutivos para ovelhas mantidas em pasto diferido. Cordeiros cujas m?es recebem suplementa??o concentrada em n?vel de 0,4% do peso vivo apresentam melhor desenvolvimento e crescimento, al?m de maior viabilidade para o sistema de produ??o. / The objective of this study was to evaluate the influence of food supplementation on performance of ewes and lambs kept in deferred pasture during the final third of gestation until weaning. The experiment conducted in the experimental area of the Study Group in Forage (GEFOR) located in the Campus Maca?ba the Federal University of Rio Grande do Norte (UFRN), from December 30, 2015 to June 19, 2016. Used 55 matrices, with no defined racial pattern, with an average of 120 days of gestation at the beginning of experiment. 61 lambs were generated from of birth single and twin. The matrices randomly distributed in three treatments: multiple mixture supplementation and concentrated supplementation at 0.4% and 0.8% of the live weight. The matrices remained in deferred pasture of Brachiaria brizantha cv. Marandu in the daytime, collected at collective bays where the supply of supplements occurred. The performance of the matrices evaluated from the live weight, average daily gain and total weight gain. The performance of the offspring evaluated from the birth weight, with weekly weighing up to the age of 90 days (weaning age). Thus, it was possible to follow the average daily weight gain (GMD) and the total weight gain (GT). The biometric measurements started at 30 days of age and biweekly until reaching 90 days of age. There was an effect (P <0.05) of feed supplementation and type of calving in live weight at calving. Sheep supplemented with 0.8% live weight concentrate had the lowest weight losses than those supplemented with 0.4% concentrate and multiple blend. There was an effect (P <0.05) of the food supplementation of the mother, the sex of the lamb, the calving type and the breed of the breeder on the live weight of the lamb at birth at 30, 60 and 90 days of age. The variables presented had an effect (P <0.05) on GMD and GT from lambs from birth to weaning. The biometric measurements of the lambs had a significant effect (P <0.05) of the dietary supplementation of the matrix and the type of delivery, single or twin. The use of concentrated supplementation at a level of 0.4% of live weight allows better productive and reproductive indexes for ewes kept in deferred pasture. Lambs whose mothers receive concentrated supplementation at a level of 0.4% of live weight present better development and growth, as well as greater viability for the production system.