Data/hora: 12/06/2024 10:53:30

Provedor de dados: 	89	
País: 	Brazil	
Título: 	Nutritional Evaluation of Soybean Hulls with or without β-Mannanase Supplement on Performance, Intestinal Morphometric and Carcass Yield of Broilers Chickens	
Autores: 	Scapini,LB; Rorig,A; Ferrarini,A; Fülber,LM; Canavese,M; Silva,AM; Fernandes,JIM.	
Data: 	2018-12-01	
Ano: 	2018	
Palavras-chave: 	Soybean meal; Intestinal mucosa; Enzyme; Non-starch polysaccharides.	
Resumo: 	ABSTRACT The objective was to evaluate the performance, intestinal morphology and carcass yield of broilers fed corn-soybean meal (SBM) diet or corn-SBM-soybean hull (SH) with or without b-mannanase supplementation. Thousand four hundred and forty Cobb Slow-male- chicks were housed design following a factorial scheme 2 x 2 (corn-SBM diet and corn-SBM-SH diet vs with and without b-mannanase), composing 4 treatments and 9 replicates each treatment, with 40 birds each replicate. At 21 days, corn-SBM diet supplemented with b-mannanase resulted in better (p&lt;0.05) feed conversion. At 42 days, the weight gain (p&lt;0.05) and feed intake (p&lt;0.05) of the birds fed diets containing SH was 2.6% and 2.9% higher than that of birds fed corn-SBM diets, respectively, independent of b-mannanase supplementation. Birds supplemented with b-mannanase had a lower length of villi (p&lt;0.05) and absorption area (p&lt;0.05) of jejunum mucosa, and higher (p&lt;0.05) relative liver weight. Diets with SH and without addition of b-mannanase resulted in higher relative liver weight (p&lt;0.05) and lower percentage of fat in the carcass. It was not found statistical differences (p&gt;0.05) in the quality of the poultry litter with the inclusion of the enzyme in the diet. The use of b-mannanase in diets with higher concentration of fiber improves the feed conversion of broilers from 1 to 21 days and can be an important nutritional and economic strategy in situations of unavailability of raw material of better quality. Corn-SBM-SH diet resulted in greater weight gain at 42 days than corn-SBM diet.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400633	
Editor: 	Fundação APINCO de Ciência e Tecnologia Avícolas	
Relação: 	10.1590/1806-9061-2017-0581	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Poultry Science  v.20 n.4 2018	
Fonte: 	info:eu-repo/semantics/openAccess