composição química e energética de alguns alimentos para frangos de corte em duas idades chemical and energy composition of some feeds for broiler chicks and two ages
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ID: 150929
2008
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Abstract
Este experimento foi conduzido com a finalidade de determinar os valores de energia metabolizável aparente (EMA) e energia metabolizável aparente corrigida pelo balanço de nitrogênio (EMAn) e analisar a composição química de alguns alimentos. Utilizou-se o método tradicional de coleta total de excretas com pintos de corte machos nos períodos de 21 a 30 dias e de 41 a 50 dias de idade. As aves foram distribuídas em delineamento inteiramente casualizado, com 11 dietas, 10 com alimentos-teste e uma dieta-referência), cada uma com seis repetições de seis e quatro aves por unidade experimental para o primeiro e o segundo período, respectivamente. Os alimentos estudados foram: quirera de arroz; farelo de arroz integral; milho; sorgo; farelo de trigo; farelo de soja; farelo de amendoim; farelo de algodão 28% PB; e duas leveduras de cana-de-açúcar (40 e 43% PB). Os valores de EMAn (kcal/kg matéria natural, MN), no primeiro e segundo períodos experimentais foram, respectivamente: para levedura 40%PB: 2.395 e 2.483; para levedura 43%PB: 2.626 e 2.726; para o farelo de soja: 2.202 e 2.306; para farelo de algodão 28%: 1.605 e 1.786; para farelo de amendoim: 2.155 e 2.471; para farelo de trigo: 1.683 e 1.877; para sorgo: 3.165 e 3.364; para milho: 3.351 e 3.524; para farelo de arroz integral: 2.446 e 2.650; e para a quirera de arroz: 3.138 e 3.278. Os valores EMA e EMAn, de todos os alimentos, foram superiores no segundo período experimental, indicando que, com o avançar da idade, as aves melhoram o aproveitamento dos alimentos.
This experiment was carried out to determine of the values of apparent metabolizable energy (AME) and nitrogen corrected apparent metabolizable energy (AMEn) and to determine of the chemical composition of some feeds. The traditional method of total excreta collection was used with male broilers chickens in the period from 21 to 30 days old and 41 to 50 days old. The birds were distributed to a completely randomized experimental design, with eleven diets, ten with tested feeds and one reference diet, and each diet with six replications and six and four birds per experimental unit. The following feeds were studied: broken rice, whole rice meal, corn, sorghum, wheat bran, soybean meal, peanut meal, and cottonseed meal, 28%CP, and two sugarcane yeast (40 and 43% CP). The values of AMEn (kcal/kg as fed), in the first and second experimental periods were, respectively, for sugarcane yeast 40% CP: 2.395 and 2.483, for sugarcane yeast 43% CP: 2.626 and 2.726, for soybean meal: 2.202 and 2.306, for cottonseed meal 28% CP: 1.605 and 1.786: for peanut meal: 2.155 and 2.471, for wheat bran: 1.683 e 1.877, for sorghum: 3.165 and 3.364, for corn: 3.351 and 3.524, for whole rice meal: 2.446 and 2.650 and for the broken rice: 3.138 and 3.278. All values of AME and AMEn, for al feeds, were higher in second experimental period, showing that, with advancing of the age, birds improve the utilization of feeds.
This experiment was carried out to determine of the values of apparent metabolizable energy (AME) and nitrogen corrected apparent metabolizable energy (AMEn) and to determine of the chemical composition of some feeds. The traditional method of total excreta collection was used with male broilers chickens in the period from 21 to 30 days old and 41 to 50 days old. The birds were distributed to a completely randomized experimental design, with eleven diets, ten with tested feeds and one reference diet, and each diet with six replications and six and four birds per experimental unit. The following feeds were studied: broken rice, whole rice meal, corn, sorghum, wheat bran, soybean meal, peanut meal, and cottonseed meal, 28%CP, and two sugarcane yeast (40 and 43% CP). The values of AMEn (kcal/kg as fed), in the first and second experimental periods were, respectively, for sugarcane yeast 40% CP: 2.395 and 2.483, for sugarcane yeast 43% CP: 2.626 and 2.726, for soybean meal: 2.202 and 2.306, for cottonseed meal 28% CP: 1.605 and 1.786: for peanut meal: 2.155 and 2.471, for wheat bran: 1.683 e 1.877, for sorghum: 3.165 and 3.364, for corn: 3.351 and 3.524, for whole rice meal: 2.446 and 2.650 and for the broken rice: 3.138 and 3.278. All values of AME and AMEn, for al feeds, were higher in second experimental period, showing that, with advancing of the age, birds improve the utilization of feeds.
| Reference Key |
generoso2008revistacomposio
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| Authors | ;Rafaela Antonia Ramos Generoso;Paulo Cezar Gomes;Horacio Santiago Rostagno;Luiz Fernando Teixeira Albino;Sergio Luiz de Toledo Barreto;Gladstone Brumano |
| Journal | european journal of lipid science and technology |
| Year | 2008 |
| DOI |
10.1590/S1516-35982008000700016
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| URL | |
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