| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
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| País: |
Brazil
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| Título: |
Carcass traits of Nellore, F1 Simmental × Nellore and F1 Angus × Nellore steers fed at maintenance or ad libitum with two concentrate levels in the diet
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| Autores: |
Oliveira,Ivanna Moraes de
Paulino,Pedro Veiga Rodrigues
Valadares Filho,Sebastião de Campos
Detmann,Edenio
Paulino,Mário Fonseca
Gomide,Lúcio Alberto de Miranda
Duarte,Marcio de Souza
Couto,Victor Rezende Moreira
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| Data: |
2011-12-01
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| Ano: |
2011
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| Palavras-chave: |
Carcass yield
Longissimus muscle area
Tissue deposition
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| Resumo: |
This trial was conducted to evaluate the quantitative carcass traits of Nellore, F1 Simmental × Nellore and F1 Angus × Nellore steers fed at maintenance level or ad libitum with 1% and 2% of the body weight in concentrate. The animals were allotted to the treatments in a completely randomized experimental design, in a 3 × 3 factorial arrangement. The animals fed the ad libitum diet with more concentrate had greater cold carcass weight, cold carcass yield and longissimus muscle area/100 kg of cold carcass weight when compared with animals fed the diet with low concentrate allowance. There was no difference between the ad libitum diets for all of the carcass cuts yields, except for top sirloin. Crossbred animals had cold carcass yield larger than the Nellore animals. F1 Angus × Nellore animals had greater rib fat thickness and smaller longissimus muscle area/100 kg than the F1 Simmental × Nellore cattle. The yield of commercial carcass cuts was not influenced by genetic group, except for the shoulder clod yield, which was smaller in crossbred animals compared with Nellore animals. The longissimus muscle area, rib fat thickness and rump fat, taken by ultrasound were influenced by the body weight of the animals. Crossbred animals fed diets with higher concentrate level produce carcasses most suitable for the requirements of the market.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001200042
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982011001200042
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.40 n.12 2011
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| Direitos: |
info:eu-repo/semantics/openAccess
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