Data/hora: 03/06/2024 02:09:58

Provedor de dados: 	89	
País: 	Brazil	
Título: 	Layer Performance Recovery After Feeding Amino Acid-deficient Diets	
Autores: 	Faria,DE; Harms,RH; Russell,GB.	
Data: 	2002-05-01	
Ano: 	2002	
Palavras-chave: 	Amino acid deficiency; Egg production; Laying hens; Threonine.	
Resumo: 	Three hundred and twenty Hy-Line W36&lt;FONT FACE=Symbol&gt;Ò&lt;/FONT&gt; commercial laying hens, 39 weeks of age, were used to determine the sequence and the length of time needed for hens to recover performance characteristics after an eight-week period under graded levels of threonine deficiency. Eight experimental diets with Thr levels ranging from 0.35 to 0.53% were randomly fed with eight replicates of five hens each. After the previous experiment, the hens were fed a control diet (0.53% Thr) for a four-week period. Feed consumption (FC), energy intake (EI), egg production (EP), egg weight (EW), egg mass (EM), and body weight (BW) were evaluated. All performance characteristics were impaired on Thr deficient diets. The recovery sequence order was FC and EI; EP, EW and EM, and finally BW, with the length of time of two, three, and four weeks, respectively. The data indicated that an amino acid deficiency does not cause permanent damage to the reproductive system of the hens.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2002000200007	
Editor: 	Fundação APINCO de Ciência e Tecnologia Avícolas	
Relação: 	10.1590/S1516-635X2002000200007	
Formato: 	text/html	
Fonte: 	Brazilian Journal of Poultry Science  v.4 n.2 2002	
Fonte: 	info:eu-repo/semantics/openAccess