Valores de energia metabolizável e de aminoácidos digestíveis de alimentos para aves

• Autor(a) principal: Generoso, Rafaela Antonia Ramos
• Data de Publicação: 2006
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: LOCUS Repositório Institucional da UFV
• Texto Completo: http://locus.ufv.br/handle/123456789/5645
• topic: Ave; Alimentação e rações; Aminoácidos digestíveis; Composição química; Poultry; Feeding and feeds; Digestible amino acids; Chemical composition; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA::NUTRICAO E ALIMENTACAO ANIMAL

Two experiments were accomplished in the section of aviculture of the Department of Zootecnia of the Federal University of Viçosa, as objetive to determine the energy values and of amino acids digestible of some victuals that can be used in the formulation of rations for poultry. The first objectified the determination of the values of apparent metabolizable energy (AME) and nitrogen corrected apparent metabolizable energy (AMEn), besides the determination of the composition chemical of these feedstuffs. The traditional method of collections was used of you excrete with male broilers of court, in the period of 21 to 30 days of age and 41 to 50 days of age. A completely randomized experimental design was used, with eleven treatments, ten kind of food reference rations and where each treatment was composed by six repetitions and six poultry per the first experiment and four poultry per second experiment. The following aliments were studied: rice, rice bran, corn, sorghum, wheat bran, soybean meal, peanut meal, cotton meal, two yeast sugar cane (40% and 43%). The AMEn (Kcal/kg) values verified in the first and second experimental periods were, respectively, for the yeast sugar cane 40%: 2395 and 2483; for the yeast sugar cane 43%: 2626 and 2726; for the soybean meal: 2202 and 2306; for the cotton meal 28%: 1605 and 1786: for the peanut meal: 2155 and 2471; for the wheat bran: 1683 e 1877; for the sorghum: 3165 and 3364; for the corn: 3351 and 3524; for the rice meal: 2446 and 2650 and for the rice bran: 3138 and 3278. All meals presented superior values of AME and AMEn in second experimental period with aging. In the second experiment, the method of forced feed wis used to determined the amino acids real digestibility coefficients with cecectomized roosters. The design used in this research was a completely randomized one rooster per experimental unit. The following aliments were studied: rice meal, rice bran, corn, sorghum, wheat bran, soybean meal, two cotton meal (28% and 38%), two yeast sugar cane (40% and 43%). The essential and not essential amino acids real digestibility coefficients average values were assessed for those meals, in percentage, and were classified as following, respectively, for the yeast sugar cane 40%: 46,03 and 38,88; for the yeast sugar cane 43%: 49,16 and 48,63; for the soybean meal: 89,37 and 85,22; for the cotton meal 28%: 74,85 and 74,13; for the cotton meal 38%: 77,50 and 72,46; for the wheat bran: 70,75 and 48,55; for the sorghum: 84,48 and 67,29; for the corn: 84,65 and 74,42; for the rice meal: 73,33 and 52,54 and rice bran: 77,53 and 67,21.