Data/hora: 10/06/2024 19:13:27

Provedor de dados: 	Revista Brasileira de Zootecnia	
País: 	Brazil	
Título: 	Methionine + cystine levels and vitamin B6 supplementation on performance and enzyme expression of methionine metabolism of gilts from 75 to 100 kg	
Autores: 	Sangali,Cleiton Pagliari; Gasparino,Eliane; Vasconcellos,Ricardo Souza; Fachinello,Marcelise Regina; Monteiro,Alessandra Nardina Trícia Rigo; Esteves,Lucas Antonio Costa; Bonagurio,Lucas Pimentel; Pozza,Paulo Cesar.	
Data: 	2017-03-01	
Ano: 	2017	
Palavras-chave: 	Blood variable; Cystathionine-γ-lyase; Homocysteine; Methionine synthase; Performance; Pigs.	
Resumo: 	ABSTRACT This study was carried out to evaluate the effect of different levels of standardized ileal digestible (SID) methionine + cystine (Met+Cys) and vitamin B6 supplementation on the performance, blood variables, and gene expression of enzymes involved in methionine metabolism in female pigs between 75 and 100 kg. Fifty six female pigs were used (Talent × Topigs 20), averaging 75.06±1.68 kg in initial weight, allotted in a completely randomized block design arranged in a 2 × 4 factorial scheme, composed of two vitamin B6 supplementation levels (1.58 and 3.58 mg/kg) and four levels of SID Met+Cys (0.370, 0.470, 0.570, and 0.670%), with seven replicates and one animal per experimental unit. No interactions between vitamin B6 supplementation and SID Met+Cys levels were observed. The levels of SID Met+Cys and vitamin B6 supplementation did not affect animal performance. Triacylglycerols showed a quadratic response to the SID Met+Cys levels, in which the lowest plasma concentration was estimated as 0.575%. Treatments did not affect the expression of the methionine synthase and cystathionine-γ-lyase enzymes or serum homocysteine levels. The SID Met+Cys requirement for female pigs from 75 to 100 kg is equal to or lower than 10.60 g/day, which corresponds to the level of 0.370% Met+Cys in the diet and a relationship 0.48% with the SID lysine.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000300223	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/s1806-92902017000300007	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.46 n.3 2017	
Fonte: 	info:eu-repo/semantics/openAccess