| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
|
| 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
|
| Direitos: |
info:eu-repo/semantics/openAccess
|
|
