Efeito de uma protease monocomponente sobre a digestibilidade de aminoácidos e da energia metabolizável da soja integral desativada para frangos de corte

• Ano de defesa: 2010
• Autor(a) principal: Messias, Rodrigo Knop Guazzi
• Orientador(a): Albino, Luiz Fernando Teixeira
• Banca de defesa: Silva, Marcelo Dias da , Cupertino, Edwiney Sebastião
• 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: Aditivo; Desempenho; Metabolismo; Energia; Aminoácidos
• Palavras-chave em Inglês: Additive; Performance; Metabolism; Energy; Amino acids
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL
• Link de acesso: http://locus.ufv.br/handle/123456789/5667

It was conducted two trials on the Avian Sector of the Department of Animal Science of Federal University of Viçosa. The aim of the first trial was to evaluate the effect of a monocomponent protease (PM) on the digestibility of amino acids in a full fat soybean (SID) and a diet based on corn and soybean meal (Basal). It was compared two methods of amino acid digestibility ascertainment, named as Method 1 and Method 2, for that were used 420 males boiler chicks of the commercial line Cobb distributed in a completely randomized design consisted of 10 treatments, 6 replicates and 7 birds per experimental unit. The used diets were as follows: Diet without Protein (DIP), DIP + SID, Basal + starch, Basal + SID and Basal, all diets with and without PM. The PM increased significantly (P<0.05) the digestibility of amino acids and crude protein of the SID as much as the Basal. The two methods presented statistic difference (P<0.05) in which the method 1 was greater than the method 2. On the second trial, it was determined the apparent metabolizable energy (EMA) and the nitrogen-corrected apparent metabolizable energy (EMAn), for that were used 168 males broiler chicks of the commercial line Cobb distributed in a completely randomized design consisted of 4 treatments, 6 replicates and 7 birds per experimental unit. It was used the following diets: Basal + SID and Basal, with and without PM. There wasn t significantly difference (P<0.05) on the EMA and EMAn between the diets with and without MP, although they presented a reasonable numerical difference.