Data/hora: 10/06/2024 07:58:04

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Effects of dietary valine:lysine ratios on lactation performance of primiparous sows nursing large litters	
Autores: 	Devi,Subramaniam Mohana; Park,Jae Won; Kim,In Ho.	
Data: 	2015-12-01	
Ano: 	2015	
Palavras-chave: 	Amino acid; Body weight; Feed intake; Pigs.	
Resumo: 	ABSTRACT Eighteen sows were used to determine the effect of dietary valine:lysine (val:lys) ratios on lactation performance in primiparous sows and litter performance. Sows, raised in individual pens, were randomly assigned to 1 of 2 experimental diets containing different standardized ileal digestibility (SID) val:lys ratios of 0.80 or 0.85. Corn-soybean-wheat-based diets were formulated to achieve the dietary treatments (0.86% or 0.87% SID lysine, and 0.69% or 0.74% SID valine). All diets were formulated to have 3,450 kcal metabolizable energy/kg. The experiment lasted 24 d. At the end of the experiment, body weight loss, backfat loss, average daily feed intake, and days to return to estrus were not affected by the different dietary val:lys ratios. Furthermore, no difference was observed in number of piglets weaned, piglet survival rate, weaning litter weight, litter weight gain, piglet weaning body weight, piglet gain, or piglet daily gain between the two dietary treatments. However, increasing the dietary val:lys ratio increased arginine and threonine concentrations in the milk. Dietary val:lys ratios of 0.80 and 0.85 do not affect the lactation performance of primiparous sows nursing large litters, but increase the arginine and threonine concentrations in milk as the dietary val:lys ratio are increased.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015001200420	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1806-92902015001200002	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.44 n.12 2015	
Fonte: 	info:eu-repo/semantics/openAccess