Data/hora: 05/06/2024 15:26:00

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Digestible tryptophan requirements for broilers from 22 to 42 days old	
Autores: 	Duarte,Karina Ferreira; Junqueira,Otto Mack; Filardi,Rosemeire da Silva; Siqueira,Jefferson Costa de; Puzotti,Maíra Mangili; Garcia,Edivaldo Antônio; Molino,Andrea de Britto; Laurentiz,Antonio Carlos de.	
Data: 	2013-10-01	
Ano: 	2013	
Palavras-chave: 	Digestible amino acids; Ideal protein; Performance; Regression analysis.	
Resumo: 	The objective of this experiment was to establish different criteria to evaluate the requirements of digestible tryptophan for broilers from 22 to 42 d of age, using different regression models (quadratic, exponential and Linear Response Plateau) and in case of statistical significance the comparison of means by Duncan test at 5% probability was also adopted. A total of 1,920 Cobb 500 male broilers were distributed in a completely randomized experimental design, with 6 treatments (6 digestible tryptophan levels: 0.1395, 0.1610, 0.1825, 0.2040, 0.2255 and 0.2470%) and 8 replications containing 40 broilers each. Performance and carcass characteristics were evaluated. The level of 0.2255% of digestible tryptophan numerically improves feed conversion, and the 0.1919% estimated by the quadratic equation significantly improves carcass yield.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001000006	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982013001000006	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.42 n.10 2013	
Fonte: 	info:eu-repo/semantics/openAccess