Data/hora: 09/06/2024 17:23:04

Provedor de dados: 	89	
País: 	Brazil	
Título: 	The effect of dietary phytase on broiler performance and digestive, bone, and blood biochemistry characteristics	
Autores: 	Sousa,JPL de; Albino,LFT; Vaz,RGMV; Rodrigues,KF; Da Silva,GF; Renno,LN; Barros,VRSM; Kaneko,IN.	
Data: 	2015-03-01	
Ano: 	2015	
Palavras-chave: 	Antagonism; Digestible amino acid; Egg components; Haugh units.	
Resumo: 	The dietary inclusion of phytase increases nutrient and energy bioavailability for broilers. The effect of phytase increases nutrients and energy bioavailability for either the objective of this experiment was to evaluate the influence of nutrient and energy reduction in diets supplemented with phytase on the performance, gastrointestinal pH, organ and bone composition, and blood biochemistry of broilers between eight and 21 days of age. In the study, 1.120 male Cobb 500(r) broilers, with 161±1g average weight, were used. At eight days of age, birds were distributed according to a completely randomized experimental design with seven treatments in a 3x2+1 factorial arrangement with eight replicates of 20 broiler each. Treatments corresponded to reduction of calcium (Ca) and phosphorus (P), amino acids and energy, or reduction of Ca, P, amino acids and energy; supplementation or not of phytase; and a positive control treatment. Broiler fed the diet with reduced Ca and P levels and phytase supplementation presented the best performance of all groups. The diet with reduced amino acid and energy levels and phytase addition reduced gizzard and proventriculus pH. Dietary Ca and P reduction increased relative liver and heart weights, as well as albumin blood levels. The bones of broilers fed phytase-supplemented diets presented higher ash content.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2015000100069	
Editor: 	Fundação APINCO de Ciência e Tecnologia Avícolas	
Relação: 	10.1590/1516-635x170169-76	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Poultry Science  v.17 n.1 2015	
Fonte: 	info:eu-repo/semantics/openAccess