Silagem de cana-de-açúcar para vacas em lactação

• Ano de defesa: 2013
• Autor(a) principal: Andrade, Felipe Leite de
• Orientador(a): Marcondes, Marcos Inácio
• Banca de defesa: Detmann, Edenio , Valadares, Rilene Ferreira Diniz
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Viçosa
• Programa de Pós-Graduação: Mestrado em Zootecnia
• Departamento: Genética e Melhoramento de Animais Domésticos; Nutrição e Alimentação Animal; Pastagens e Forragicul
• País: BR
• Palavras-chave em Português: Fisiologia; Nutrição; Produção e reprodução de ruminantes
• Palavras-chave em Inglês: Physiology; Nutrition; Production and reproduction of ruminants
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL
• Link de acesso: http://locus.ufv.br/handle/123456789/5784

This study was conducted to evaluate the effects of the use of sugarcane silage or traditional sources of forage (corn silage or fresh sugarcane) for Holstein cows on intake, milk production and nutritional parameters. The experiment was conducted at the Unidade de Ensino, Pesquisa e Extensão em Gado de Leite do Departamento de Zootecnia (DZO), da Universidade Federal de Viçosa, between July and September 2011. We used 25 Holstein cows with 600 kg of weight body inicially and adopted the randomized block design (RBD) with 5 blocks, 5 periods lasting 14 days each and 5 treatments, in a repeated measures in time. The treatments were provided corn silage, fresh sugarcane, sugarcane silage pure, cane silage with 0.5% CaO and cane silage with Lactobacillus buchneri. The forage: concentrate ratio of 60:40 for the MS diet based on corn silage and 40:60 for diets with sugarcane. Data were subjected to analysis of variance using the mixed procedure of SAS being used orthogonal contrasts to compare means adopting the 5% level of significance. Intake (kg / day) of DM were similar between treatments. A higher intake (kg / day) of EE and NDF and higher digestibility of DM, OM, EE, NDF and TDN diet based on corn silage in relation to diets based on sugarcane. There was a higher digestibility of DM and OM in diet of sugarcane silage inoculated with L. buchneri than sugarcane silage inoculated with CaO and there was a higher digestibility of DM, OM, EE, NDF and TDN to silage additives relative to sugarcane pure silage. The production of milk, fat and solids not fat were similar among treatments. It was concluded that diets based on sugarcane ensiled with forage: concentrate ratio of 40:60 in DM provides up to 22 kg of milk / cow / day and does not alter the composition of milk.