| Registro completo |
| Provedor de dados: |
R. Bras. Zootec.
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| País: |
Brazil
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| Título: |
Intake and performance of confined crossbred heifers fed different lipid sources
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| Autores: |
Fiorentini,Giovani
Santana,Márcia Cristina Araújo
Sampaio,Alexandre Amstalden Moraes
Reis,Ricardo Andrade
Ribeiro,Andressa Ferreira
Berchielli,Telma Teresinha
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| Data: |
2012-06-01
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| Ano: |
2012
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| Palavras-chave: |
Carcass
Females
Ingestion
Protected fat
Soy oil and soybean
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| Resumo: |
The objective of this study was to evaluate the effect of different lipid sources on nutrient intake, performance, development and carcass characteristics of heifers raised in confinement. Twenty-one crossbreed heifers (Nellore × Santa Gertrudis × Braunvieh) received 600 g/kg forage composed of corn silage and 400 g/kg concentrate with a 58.0 g/kg fat content in the total diet. The following lipid sources were used: soybeans, protected fat (Megalac-E®) and soybean oil. The experimental design was completely randomized, with three treatments and seven replicates, and the means were compared by the Tukey test at 5%. The protected fat diet resulted in a greater intake of dry matter (8.80 kg/d) when compared with the other diets. The animals that were fed the protected fat diet had a higher average daily weight gain and slaughter weight. Feed conversion and protein efficiency rate were not influenced by lipid sources. Carcass yield was not influenced by the different diets.
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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=S1516-35982012000600025
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982012000600025
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.41 n.6 2012
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| Direitos: |
info:eu-repo/semantics/openAccess
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