Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T13:30:37Z No. of bitstreams: 5 63.pdf: 608811 bytes, checksum: 0b8fbde661633ab83210b52bdc12bee7 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-02-27T19:44:32Z (GMT) No. of bitstreams: 5 63.pdf: 608811 bytes, checksum: 0b8fbde661633ab83210b52bdc12bee7 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) / Made available in DSpace on 2015-02-27T19:44:32Z (GMT). No. of bitstreams: 5 63.pdf: 608811 bytes, checksum: 0b8fbde661633ab83210b52bdc12bee7 (MD5) license_url: 52 bytes, checksum: 3d480ae6c91e310daba2020f8787d6f9 (MD5) license_text: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) license.txt: 2109 bytes, checksum: aa477231e840f304454a16eb85a9235f (MD5) Previous issue date: 2012 / Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (Capes) / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq) / Objetivou-se, com este trabalho, selecionar gen?tipos de batata-doce com potencial de utiliza??o na alimenta??o animal. Foram avaliados a produtividade de ramas e efeito do emuchecimento sobre a composi??o bromatol?gica e a capacidade fermentativa das ramas de batata-doce, utilizando-se arranjo fatorial 7x2 (gen?tipos X ramas emurchecidas ou n?o), delineamento em blocos ao acaso, com 4 repeti??es. Os gen?tipos diferiram quanto ? PMS e teores de MS, FDN, FDA, CEL, LIG, CS, NIDA e CIN. O emurchecimento promoveu aumento nos teores de MS, PB, NIDA e componentes fibrosos e redu??o nos teores de carboidrato sol?vel, tornando as ramas emurchecidas de pior qualidade. N?o foi observado efeito do emurchecimento sobre a capacidade fermentativa das ramas in natura e emurchecidas. Os gen?tipos BD-25, BD-08 e BD-23, apresentaram produtividades superiores a 7,0 t ha-1, enquanto, o gen?tipo BD-43, apresentou baixos teores de FDA. Al?m dessas caracter?sticas, foram avaliadas a composi??o bromatol?gicas e a popula??o de microrganismos das silagens de batata-doce inoculadas ou n?o, por meio de arranjo fatorial 5x2 (gen?tipos x inoculante ou n?o). As silagens obtidas com os diferentes gen?tipos diferiram quanto aos teores de FDA, HEM e valores de pH. A utiliza??o de inoculante n?o promoveu altera??es na popula??o de microrganismos e nem nas caracter?sticas bromatol?gicas das silagens, exceto para o valor de pH. De maneira geral, a silagem produzida por todos os gen?tipos avaliados apresenta boa caracter?stica nutricional, entretanto, a silagem do gen?tipo BD-43 se destacou, apresentando baixos teores de FDA. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Produ??o Vegetal, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2012. / ABSTRACT The objective of this work was to select sweet potato genotypes with potential for use in animal feed. The vine?s yield and wilting effect on the chemical composition and fermentative capacity of the sweet potatoes? vines have been evaluated, using a 7x2 factorial arrangement (genotypes ?X? vines wilted or not), a randomized block design with four replications. Genotypes differed on the SMP and DM, NDF, ADF, CEL, LIG, CS, NIDA and CIN contents. Wilting promoted an increase in DM, CP, NIDA and fibrous components and reduction in levels of soluble carbohydrates, making wilted vines of poorer quality. There was not observed effect of wilting on the fermentative ability of in natura or wilted vines. Genotypes BD-25, BD-08 and BD-23, had yields higher than 7.0 t ha-1, while the genotype BD-43, showed low levels of ADF. Besides these features, There have been analyzed the chemical-bromatological composition of the microbial population of sweet potato silage inoculated or not by means of a factorial arrangement 5x2 (genotype ?x? with or without inoculation). The silages with different genotypes differ in ADF, HEM, and pH values. The use of inoculum did not change the microbial population and the characteristics or nutritive value of silages, except for the pH value. In general, the silage produced by all genotypes has good nutritional characteristics, however, the silage genotype BD-43 stood out, showing low levels of ADF.

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.