Data/hora: 03/06/2024 16:19:56

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Effect of different feed restriction regimens on lamb performance and carcass traits	
Autores: 	Abouheif,Mohamed; Al-Sornokh,Hussain; Swelum,Ayman; Yaqoob,Hilal; Al-Owaimer,Abdullah.	
Data: 	2015-03-01	
Ano: 	2015	
Palavras-chave: 	Body composition; Compensatory growth; Limit-feeding; Sheep.	
Resumo: 	Fifty Najdi ram lambs weighing an average of 38.1±0.5 kg were utilized in this study to determine the effects of feed restriction level with or without subsequent realimentation on lamb performance and carcass composition. Lambs were allotted randomly and equally into five groups. The groups were fed a control diet ad libitum; two groups fed 0.90 and 0.80 of ad libitum intake throughout the eight-week period of the trial (R), and two groups fed 0.90 and 0.80 of ad libitum intake for a six-week period followed by two weeks of realimentation (RR). All lambs were slaughtered after eight weeks of experimentation. Average daily gain (ADG) for the 0.90 and 0.80 ad libitum groups decreased by 7.6 and 26.9% during restriction, whereas the lambs during realimentation period had 35 and 30.5% faster ADG and 27.5 and 21.8% better feed:gain ratios than the control, respectively. At the end of the trial, final, empty and hot carcass weights and overall ADG of the 0.90 ad libitum RR group did not differ from control. Feeding performance values of the 0.80 ad libitum R group were the lowest among the treatments. The studied feed restriction regimens depressed the weights of empty stomach, tail fat, visceral fat, and subcutaneous fat; however, two weeks of realimentation were not enough to induce complete weight recovery in these tissues. The 0.90 ad libitum RR restriction routine can be adopted as a nutritional management practice for fattening Najdi lambs.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000300076	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1806-92902015000300001	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.44 n.3 2015	
Fonte: 	info:eu-repo/semantics/openAccess