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Provedor de dados:  R. Bras. Zootec.
País:  Brazil
Título:  Performance of lambs fed alternative protein sources to soybean meal
Autores:  Alves,Felipe José Lins
Ferreira,Marcelo de Andrade
Urbano,Stela Antas
Andrade,Rafael de Paula Xavier de
Silva,Ághata Elins Moreira da
Siqueira,Michelle Christina Bernardo de
Oliveira,Juliana Paula Felipe de
Silva,Janaina de Lima
Data:  2016-04-01
Ano:  2016
Palavras-chave:  Biofuels byproducts
Carcass quality
Feed evaluation
Intake
Protein supplementation
Resumo:  ABSTRACT The objective of this study was to evaluate the effect of alternative protein sources (castor bean cake, sunflower cake, and sunflower seed) to soybean meal on the intake and performance of 40 lambs, initially weighing 19.8±1.84 kg, fed diets based on Tifton grass hay. The experimental design was completely randomized blocks. There were no differences in the nutrient intake of castor bean diets compared with soybean meal. The intake of nutrients in the sunflower cake and sunflower seed diets was decreased compared with soybean meal. The apparent digestibility coefficients of dry matter, organic matter, crude protein, and neutral detergent fiber of sunflower cake and sunflower seed diets were decreased compared with soybean meal. The average daily weight gain of animals fed the castor bean diet (0.190 kg) was not different from that of the animals fed the soybean meal diet (0.217 kg). The sunflower cake and sunflower seed diets provided less weight gain (0.171 and 0.135 kg d-1, respectively) than soybean meal due to the lower nutrient intake. The hot carcass yield and true yield were not affected by the protein sources. The neck, ribs, and ham weights were similar in lambs fed soybean meal and castor bean cake diets. It is recommended to use castor bean as an alternative protein source in the diet of lambs.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000400145
Editor:  Sociedade Brasileira de Zootecnia
Relação:  10.1590/S1806-92902016000400001
Formato:  text/html
Fonte:  Revista Brasileira de Zootecnia v.45 n.4 2016
Direitos:  info:eu-repo/semantics/openAccess
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