Data/hora: 02/06/2024 04:59:54

Provedor de dados: | 96
País: | Brazil
Título: | Bioavailability of different methionine sources for growing broilers
Autores: | Sangali,Cleiton Pagliari; Bruno,Luís Daniel Giusti; Nunes,Ricardo Vianna; Oliveira Neto,Adhemar Rodrigues de; Pozza,Paulo Cesar; Oliveira,Taciana Maria Moraes de; Frank,Rafael; Schöne,Rodrigo André.
Data: | 2014-03-01
Ano: | 2014
Palavras-chave: | Dl-2-hydroxy-4-methylthio butanoic acid; Dl-methionine; Polyherbal ingredient; Sulphur amino acids.
Resumo: | The objective of this trial was to evaluate the bioavailability of DL-2-hydroxy-4-(methyl) butanoic acid (DL-HMBA) and a polyherbal ingredient (PHI) in relation to DL-methionine (DLM) on broilers. Nine hundred male broiler chickens of the Cobb 500 strain were fed from 22 to 42 days of age either a basal diet without industrial methionine supplementation or the basal diet supplemented with DL-HMBA at one of three levels (0.143, 0.286 and 0.429%) or DLM at one of three levels (0.093, 0.186 and 0.279%, each of which is 65% of the respective DL-HMBA level by weight) or PHI at one of the same three levels used for DLM (0.093, 0.186 and 0.279%). The weight gain, feed conversion ratio and relative weights of breast and abdominal fat were improved over that of basal diet-fed broilers by the addition of DL-HMBA and DLM to the diet. A simultaneous exponential regression analysis revealed that the relative bioavailability values for DL-HMBA and PHI were 52% and 5% of that of DLM, respectively, for weight gain, and 57% and 4%, respectively, for feed conversion ratio. Concerning breast meat yield, a simultaneous linear regression analysis (slope ratio) showed that the relative bioavailability for DL-HMBA was 65% of that of DLM. Considering all studied parameters together, the relative bioavailability values for DL-HMBA and PHI are 58% and 4.5% of that of DLM on a product basis.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000300006
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982014000300006
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.43 n.3 2014
Fonte: | info:eu-repo/semantics/openAccess