Data/hora: 08/06/2024 11:36:21

Provedor de dados: 	Revista Brasileira de Zootecnia	
País: 	Brazil	
Título: 	Performance of finishing steers fed different sources of carbohydrates	
Autores: 	Freitas,Leandro da Silva; Brondani,Ivan Luiz; Segabinazzi,Luciane Rumpel; Restle,João; Alves Filho,Dari Celestino; Pizzuti,Luiz Angelo Damian; Silva,Viviane Santos da; Rodrigues,Leonel da Silva.	
Data: 	2013-05-01	
Ano: 	2013	
Palavras-chave: 	Corn; Intake; Soybean hulls; Wheat bran; Weight gain.	
Resumo: 	The objective of this study was to evaluate the effect of carbohydrate sources (corn, soybean hulls or wheat bran) in the diet on performance of feedlot steers in the finishing phase. Twenty-four Charolais × Nellore crossbred steers, aged 22 months and initial weight of 335.0±10.9 kg were used in the experiment. Diets contained 40% sorghum silage and 60% concentrate. The intakes of dry matter (DM; 10.68, 10.16 and 10.34 kg/day) and crude protein (1.66, 1.70 and 1.72 kg/day) were not affected by diets with corn, soybean hulls or wheat bran, respectively. The intakes of neutral and acid detergent fiber were higher for soybean hulls, but the diet containing corn provided higher intake of non-fibrous carbohydrates, total digestible nutrients and digestible energy. Weight gain was higher and better feed conversion for animals fed corn (1.57 kg/day, 6.85 kg DM/kg gain) or soybean hulls (1.58 kg/day and 6.61 kg DM/kg gain) compared with steers receiving wheat bran (1.29 kg/day and 8.14 kg DM/kg gain) in the diet. There was no significant effect of carbohydrate sources on the final body score (3.78 points), energy conversion (28.25 Mcal digestible energy/kg gain), hot carcass yield (57.63 kg/100 kg BW) and fat thickness (3.1 mm). From an economic point of view, soybean hulls can be an alternative source of carbohydrate to corn in diets of finishing steers with 60% concentrate.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000500008	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982013000500008	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.42 n.5 2013	
Fonte: 	info:eu-repo/semantics/openAccess