Submitted by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-11-20T12:50:15Z No. of bitstreams: 2 karoline_guedes_araujo.pdf: 416699 bytes, checksum: 717f931edff84a22776fa1c422d70315 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Approved for entry into archive by Rodrigo Martins Cruz (rodrigo.cruz@ufvjm.edu.br) on 2015-11-20T12:50:36Z (GMT) No. of bitstreams: 2 karoline_guedes_araujo.pdf: 416699 bytes, checksum: 717f931edff84a22776fa1c422d70315 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) / Made available in DSpace on 2015-11-20T12:50:37Z (GMT). No. of bitstreams: 2 karoline_guedes_araujo.pdf: 416699 bytes, checksum: 717f931edff84a22776fa1c422d70315 (MD5) license_rdf: 23898 bytes, checksum: e363e809996cf46ada20da1accfcd9c7 (MD5) Previous issue date: 2011 / Funda??o de Amparo ? Pesquisa do Estado de Minas Gerais (FAPEMIG) / Objetivou-se com o desenvolvimento deste trabalho avaliar a produtividade de seis h?bridos de milho, o valor nutricional e as caracter?sticas fermentativas de suas silagens. Avaliou-se tamb?m qualidade das fibras destas silagens por meio das cin?ticas de tr?nsito e de degrada??o ruminal. Foram utilizados quatro animais fistulados no r?men, sendo o delineamento utilizado um quadrado latino (4x4), onde os tratamentos foram as fibras mordantadas de quatro h?bridos selecionados dentre os seis. Para o estudo de degradabilidade, as amostras mo?das em peneiras de 4 mm foram incubadas no r?men nos tempos 0, 6, 18, 48 e 96 horas, em saquinhos de n?ilon. A partir dos resultados encontrados, pode-se sugerir que os h?bridos estudados apresentam caracter?sticas nutricionais e produtivas adequadas para obten??o de silagens de qualidade. E que o h?brido DKB 390 apresentou melhor performance com rela??o a qualidade da fibra. / Disserta??o (Mestrado) ? Programa de P?s-Gradua??o em Zootecnia, Universidade Federal dos Vales do Jequitinhonha e Mucuri, 2011. / ABSTRACT The objective of this study was to evaluate the productivity of six corn hybrids, the nutritional and fermentation characteristics of their silage. There has also been evaluated the quality of these silages fibers through the transit kinetics and ruminal degradation. Four animals were fistuled in the rumen, and the design used a Latin square design (4x4), in which the treatments were the mordant fibers from four of the six selected hybrids. To study the degradability of the samples, samples grounded in 4mm sieves were incubated in the rumen at 0, 6, 18, 48 and 96 hours, in nylon bags. From these results, it can be suggest that studied hybrids have nutritional and productive measures to obtain silage quality. And the hybrid DKB 390, showed better performance with respect to fiber quality.