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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.
1

Desempenho produtivo e composi??o do leite e da carne de caprinos alimentados com res?duo de panifica??o / Performance and composition of milk and goat meat fed with bakery waste

MORENZ, Danilo Antonio 31 May 2016 (has links)
Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-01-26T16:31:14Z No. of bitstreams: 1 2016 - Danilo Antonio Morenz.pdf: 881703 bytes, checksum: 6cfcd4c0f7c8a5dd52386788991fd786 (MD5) / Made available in DSpace on 2018-01-26T16:31:14Z (GMT). No. of bitstreams: 1 2016 - Danilo Antonio Morenz.pdf: 881703 bytes, checksum: 6cfcd4c0f7c8a5dd52386788991fd786 (MD5) Previous issue date: 2016-05-31 / CAPES / The aim was evaluate the effect of replacing corn by bakery waste (BW) in goats diet on performance, dry matter and nutrients intake, carcass characteristics, chemical composition and fatty acid profile of the Longissimus dorsi muscle and the food intake, apparent digestibility, nitrogen balance, ruminal parameters, production and composition of milk by goats. Experiment 1: Four levels of inclusion of BW replacing corn (0, 33, 66, 100%) in the diet of kids distributed in a completely randomized design were analyzed. The diets were composed of concentrate and Cynodon spp. hay, with forage: concentrate ratio of 60:40. The intakes of dry matter, organic matter, crude protein, ether extract and carbohydrates decreased linearly, while the non-fiber carbohydrates intake, animal performance, carcass characteristics and chemical composition were not affected by replacement of corn by BW. The elaidic acid content (C18: 1 trans-9) increased in the fatty acid profile of the Longissimus dorsi muscle with the inclusion of RP, which can be used as a substitute for corn meal in goats feed composition. It was concluded that bakery waste can substitute the corn up to 100% in the concentrate mixture without affecting intake, performance and carcass and meat traits of kids. Experiment 2: Bakery waste was added replacing 0; 25; 50; 75 and 100% of the concentrate in dry matter basis. Five Saanen lactating goats, non-pregnant with an average weight of 55.7 kg were arranged in a 5 x 5 Latin Square design. Experimental diets were composed by Cynodon hay and concentrate, in a roughage:concentrate ration of 40:60. The inclusion of BW in diets decreases the intake of ether extract, acid detergent fiber and the coefficients of apparent digestibility of crude protein and ether extract. Different levels of substitution did not affect ruminal pH, but for the concentration of ruminal ammonia was found linear reduction with the level of replacement. The inclusion of BW in diets increased the efficiency of use of N. The bakery waste can replace conventional concentrate in diets for goats. / Objetivou-se avaliar o efeito da substitui??o do milho pelo res?duo de panifica??o (RP) na dieta de cabritos sobre o desempenho, consumo de mat?ria seca e dos nutrientes, caracter?sticas de carca?a, composi??o qu?mica e perfil dos ?cidos graxos do m?sculo Longissimus dorsi e em cabras em lacta??o o consumo alimentar, a digestibilidade aparente, o balan?o de compostos nitrogenados, os par?metros ruminais, a produ??o e a composi??o do leite. Experimento 1: Foram analisados quatro n?veis de inclus?o do RP em substitui??o ao milho (0, 33, 66, 100%) na dieta de cabritos distribu?dos em delineamento inteiramente casualizado. As dietas foram compostas de concentrado e feno de Cynodon spp, com rela??o volumoso:concentrado de 60:40. O consumo de mat?ria seca (MS), mat?ria org?nica (MO), prote?na bruta (PB), extrato et?reo (EE) e carboidratos totais (CT) foi linear decrescente, enquanto que o consumo de carboidratos n?o fibrosos (CNF), o desempenho dos animais, as caracter?sticas de carca?a e a composi??o centesimal n?o foram influenciados pela inclus?o do RP em substitui??o ao milho. O teor de ?cido ela?dico (C 18:1 trans-9) aumentou no perfil de ?cidos graxos do m?sculo Longissimus dorsi com a inclus?o do RP. Conclui-se que o RP pode substituir o milho em at? 100% na mistura do concentrado. Experimento 2: Foram avaliados cinco n?veis de substitui??o do concentrado pelo RP (0, 25, 50, 75, 100%), utilizando-se cinco cabras em lacta??o da ra?a Saanen, com peso m?dio de 55,7 kg, distribu?dos em delineamento em Quadrado Latino 5 X 5. As dietas experimentais foram compostas de concentrado e feno de Cynodon spp, numa rela??o volumoso:concentrado de 40:60 na mat?ria seca. Houve redu??o linear do consumo de EE, do consumo de FDA, da digestibilidade da PB e da digestibilidade do EE. A substitui??o crescente do concentrado pelo RP na dieta n?o influenciou o pH ruminal, por?m reduziu a concentra??o de N-NH3 no l?quido ruminal. A inclus?o do RP em n?veis crescentes nas dietas favoreceu a efici?ncia de utiliza??o de nitrog?nio. O RP pode substituir totalmente o concentrado na dieta de cabras em lacta??o.
2

Res?duo de Panifica??o na Dieta de Ovinos. / Waste Bakery on diet Sheep.

Fran?a, Almira Biazon 05 March 2010 (has links)
Made available in DSpace on 2016-04-28T14:59:41Z (GMT). No. of bitstreams: 1 Almira Biazon Franca.pdf: 424732 bytes, checksum: 6b668d3884ce7bf7de269eed230cab2b (MD5) Previous issue date: 2010-03-05 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior / This work aimed to evaluate the effects of inclusion of bakery waste (BW) in sheep diets on intake, apparent digestibility, balance of nitrogen compounds and ruminal parameters, and determine the carbohydrates and nitrogenous fractions of food and diets. Five levels of corn replacement by BW (0, 25, 50, 75 and 100%) were studied, using five male lambs with live weight of 30 kg, in a Latin square 5 X 5 design. The experimental diets were composed of concentrate and hay Tifton 85 (Cynodon spp) in a forage:concentrate ratio of 60:40. To determine the intake and digestibility were collected samples of food, orts and feces. Urine was collected in buckets for a period of 24 hours to determination of nitrogen balance. Data were interpreted with to variance analysis and regression, using the t test at 5% significance. The BW present higher value for the non fiber carbohydrate and protein fraction with fast ruminal degradation (A+B1), which brought a greater proportion of these fractions in diets replacing 100% of corn by the BW and greater timing of energy supply and protein in the rumen. There wasn t effect (P>0.05) levels of substitution of intake, digestibility of nutrients, balance of nitrogen compounds and weight gain. Different levels of substitution didn t affect (P>0.05) pH values and concentrations of volatile fatty acids, but for the concentration of ammonia nitrogen (N-NH3) was found linear reduction (P<0.05) with the level of replacement, in which each 1% BW promoted reduction of 0,11 mg/dL in the concentration of N-NH3, which may be related to increased ruminal availability of energy, which allows greater use of ammonia for microbial growth. The addition of BW caused a reduction of 51,15% in the cost of ration. It was concluded that the BW can replace the corn in concentrate rations for sheep. / Objetivou-se, com este estudo, avaliar os efeitos da inclus?o do res?duo de panifica??o (RP) na dieta de ovinos, sobre o consumo, a digestibilidade aparente, o balan?o de compostos nitrogenados e os par?metros ruminais, e determinar as fra??es de carboidratos e nitrogenadas dos alimentos e das dietas. Foram estudados cinco n?veis de substitui??o do milho pelo RP (0; 25; 50; 75 e 100%), utilizando-se cinco cordeiros machos, com peso m?dio de 30 kg, distribu?dos segundo um delineamento em Quadrado Latino 5 x 5. As dietas experimentais foram compostas de concentrado e feno de capim-Tifton 85 (Cynodon spp), numa rela??o volumoso:concentrado de 60:40. Para a determina??o do consumo e digestibilidade aparente foram coletadas amostras dos alimentos, sobras e das fezes. Foram realizadas coletas de urina por um per?odo de 24 horas para a determina??o do balan?o de compostos nitrogenados. Os resultados foram interpretados de acordo com a an?lise de vari?ncia, e regress?o, utilizando-se o teste t a 5% de signific?ncia. O RP destacou-se pelos elevados valores das fra??es de carboidratos n?o fibrosos e de prote?na de r?pida fermenta??o ruminal (A+B1), o que conferiu maior propor??o dessas fra??es nas dietas com a substitui??o de 100% do milho pelo o RP e maior sincronismo da disponibilidade de energia e prote?na no r?men. N?o houve efeito (P>0,05) dos n?veis de substitui??o sobre o consumo, digestibilidade dos nutrientes, balan?o de compostos nitrogenados e ganho de peso. Os diferentes n?veis de substitui??o n?o afetaram (P>0,05) o pH do l?quido ruminal e as concentra??es dos ?cidos graxos vol?teis, por?m para a concentra??o de nitrog?nio amoniacal (N-NH3) foi observada redu??o linear (P<0,05) em fun??o dos n?veis de substitui??o, em que cada 1% de RP promoveu redu??o de 0,11 mg/dL na concentra??o de N-NH3, o que pode estar relacionada ao aumento na disponibilidade de energia no r?men, que possibilita maior utiliza??o da am?nia para o crescimento microbiano. A adi??o de RP causou redu??o de at? 51,15% no custo da ra??o concentrada. Concluindo-se que o RP pode substituir totalmente o milho nas ra??es concentradas de ovinos.
3

Silagens com diferentes propor??es de capim-marandu e amendoim forrageiro / Silages containing different proportions of Marandu Grass and peanut

Gomes, Fran?oise Mara 18 July 2013 (has links)
Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-05T11:59:39Z No. of bitstreams: 2 francoise_mara_gomes.pdf: 474916 bytes, checksum: 3c5a4eac9fcd5ab28c70fd667d29e48f (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-05T12:09:22Z (GMT) No. of bitstreams: 2 francoise_mara_gomes.pdf: 474916 bytes, checksum: 3c5a4eac9fcd5ab28c70fd667d29e48f (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-01-05T12:09:44Z (GMT) No. of bitstreams: 2 francoise_mara_gomes.pdf: 474916 bytes, checksum: 3c5a4eac9fcd5ab28c70fd667d29e48f (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Made available in DSpace on 2015-01-05T12:09:45Z (GMT). No. of bitstreams: 2 francoise_mara_gomes.pdf: 474916 bytes, checksum: 3c5a4eac9fcd5ab28c70fd667d29e48f (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Previous issue date: 2013 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES) / O estudo foi conduzido na Universidade Federal de Vi?osa, com o objetivo de avaliar as popula??es de microrganismos, as perdas de mat?ria seca, a composi??o bromatol?gica e as caracter?sticas fermentativas de silagens mistas de capim-marandu, com diferentes n?veis de amendoim forrageiro (0; 25; 50; 75 e 100%), com e sem inoculante microbiano Sil All (Alltech do Brasil). Utilizou-se o esquema fatorial 5 x 2 (cinco propor??es de amendoim forrageiro, com e sem inoculante), no delineamento inteiramente casualizado, com tr?s repeti??es. O material foi ensilado em baldes com capacidade de 20 L, providos com v?lvulas de Bunsen, e abertos 60 dias ap?s o fechamento para as avalia??es. Observou-se efeito da intera??o n?vel de amendoim forrageiro e inoculante microbiano sobre pH (P<0,05) e teores de FDNcp (P<0,01), ?cidos l?tico, propi?nico e but?rico, popula??es de fungos + leveduras (P<0,05), produ??o de gases (P<0,01), recupera??o e produ??o total de mat?ria seca. Verificou-se efeito do n?vel de amendoim forrageiro para o pH (P<0,01) e teores de MS, PB, FDA, NIDA, lignina, FDNcp, carboidratos sol?veis residuais, NH3 (P<0,05), ?cidos l?tico (P<0,01), ac?tico, propi?nico e but?rico, popula??es de bact?rias ?cido l?tico (P<0,05) e fungos + leveduras (P<0,01) e sobre a recupera??o e perdas totais de mat?ria seca. O efeito do inoculante foi observado sobre o pH (P<0,01), teores de NIDA, lignina, FDNcp, carboidratos sol?veis residuais (P<0,05), ?cidos l?tico (P<0,01) e propi?nico, e sobre recupera??o e perdas totais de mat?ria seca. Conclui-se que, a adi??o de amendoim forrageiro ao capim-marandu, no momento da ensilagem, aumenta o teor de prote?na bruta e reduz o teor de fibra, bem como proporciona perfil fermentativo adequado e boa recupera??o de mat?ria seca nas silagens. O uso do inoculante microbiano n?o apresenta benef?cios em rela??o ? composi??o bromatol?gica, mas proporciona melhor perfil fermentativo. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2013. / ABSTRACT The study was conducted at the Federal University of Vi?osa, in order to assess the populations of microorganisms, losses of dry matter, chemical composition and fermentation characteristics of silage mixed Marandu grass with different levels of peanut (0, 25 , 50, 75 and 100%), with and without inoculant Sil All (Alltech Brazil). We used a 5 x 2 factorial design (five proportions of peanut, with and without inoculation), in a completely randomized design with three replications. The material was ensiled in buckets with a capacity of 20 liters, fitted with Bunsen valves, and open 60 days after closing for evaluations. We observed a significant interaction between level of peanut and inoculation on pH (P <0.05) and levels of NDF (P <0.01), lactic acid, propionic and butyric acids, yeast fungus populations + (P <0 , 05), gas production (P <0.01), recovery and total production of dry matter. There was no effect on the level of peanut for pH (P <0.01) and DM, CP, ADF, NIDA, lignin, NDF, residual soluble carbohydrates, NH3 (P <0.05), lactic acid ( P <0.01), acetic, propionic and butyric acids, lactic acid bacteria population (P <0.05) + yeasts and fungi (P <0.01) and for total recovery and losses of dry matter. The effect of inoculum was observed on the pH (P <0.01) levels of NIDA lignin, NDF, residual soluble carbohydrates (P <0.05), lactic acid (P <0.01) and propionic, and on Total recovery and losses of dry matter. We conclude that the addition of the peanut Marandu grass at the time of ensiling increases the protein content and reduces the fiber content as well as provides adequate fermentation profile and good recovery of dry matter in the silage, regardless of the use of inoculant.

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