Energia metabolizável para codornas de corte

• Ano de defesa: 2013
• Autor(a) principal: Muniz, Jorge Cunha Lima
• Orientador(a): Barreto, Sérgio Luiz de Toledo
• Banca de defesa: Silva, Marcelo Dias da , Torres, Robledo de Almeida , Albino, Luiz Fernando Teixeira , Hannas, Melissa Izabel
• 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: Codorna europeia; Coturnix
• Palavras-chave em Inglês: European quail; Coturnix
• Área do conhecimento CNPq: CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL::EXIGENCIAS NUTRICIONAIS DOS ANIMAIS
• Link de acesso: http://locus.ufv.br/handle/123456789/5771

Two experiments were conducted aiming to establish the nutritional requirements of metabolizable energy (ME) for quails during 1-14 days of age, using 1,120 quails were distributed in a completely randomized design with seven treatments ( 2,600, 2,700, 2,800, 2,900, 3,000, 3,100 and 3,200 kcal / kg diet), eight replicates of 20 birds per experimental unit. Linearly decreased (P <0.01) in feed intake (FI), metabolizable energy (CEM), protein (CPB), lysine (CLIS) and feed conversion (FC) with increased levels of the dietary. The body weight (BW) and weight gain (WG) had a quadratic effect (P <0.03) the same observed for viability (VIAB) birds (P <0.01), estimating approximately 2,820 kcal / kg for both parameters. The content of dry matter (DM) and fat (EE) of the carcass increased linearly (P <0.01), while the moisture content decreased (A) (P <0.01) increased levels of energy diet. The protein content (CP) in the carcasses of birds was not influenced (P> 0.05) by EM. The requirement for quails 1-14 days of age, for better performance, higher viability of birds and proper carcass composition is 2820 kcal / kg diet, corresponding to a ratio of metabolizable energy: crude protein 108.6. In the second experiment, in order to determine the requirement for the period 15-35 days old, were used 560 quails were distributed in a completely randomized design, with five treatments (2.850, 2.950, 3.050, 3.150 and 3.250 kcal / kg diet), eight replicates with 14 birds per experimental unit. There was a linear decrease (P <0.01) in CR, CPB, CLIS and CA with increased levels of the dietary. CEM, PC, GP and VIAB were not affected (P> 0.05) by EM used. The levels of the diets did not affect (P> 0.05) on the DM, UM and protein content in PB quail carcasses. A quadratic effect (P <0.04) of levels of EE on the carcasses of birds. Thus the level of 2,850 kcal of ME / kg of feed, corresponding to a ratio of metabolizable emerged: crude protein 125.05, allows satisfactory performance of birds and carcass composition suitable.