SID tryptophan levels and B6 vitamin supplementation do not change blood parameters, organ weights, carcass traits, and meat quality of barrows (70-100kg).
Meat Sci
; 118: 66-70, 2016 Aug.
Article
em En
| MEDLINE
| ID: mdl-27054283
ABSTRACT
This study evaluated the effects of standardized ileal digestible (SID) tryptophan and B6 on blood parameters, organ weights, carcass traits, and longissimus lumborum quality of barrows (70-100kg). Sixty-four crossbred barrows averaging 70.77±2.07kg were distributed in a 4×2 factorial with four SID tryptophan levels (0.130, 0.155, 0.180, and 0.205%) and two B6 levels (1 and 5mg/kg) in eight replicates of one animal each. The meat lightness degree answered linearly (P=0.015) to SID tryptophan levels and the shear force answered quadratically (P=0.050), with estimates of a higher value (31.67N) at 0.163% SID tryptophan. Although B6 showed positive effects (P<0.05) on hot and cold carcass yields and pH24, it resulted in a negative effect (P<0.05) on ham weight and yield, and increased the drip loss and cooking fluid. The dietary SID tryptophan requirement for barrows (70-100kg) was not higher than 0.130% (4.07g/day) and did not change due to B6.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Tamanho do Órgão
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Triptofano
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Qualidade dos Alimentos
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Vitamina B 6
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Carne Vermelha
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Íleo
Limite:
Animals
Idioma:
En
Revista:
Meat Sci
Assunto da revista:
CIENCIAS DA NUTRICAO
Ano de publicação:
2016
Tipo de documento:
Article