Data/hora: 10/06/2024 12:20:04

Provedor de dados: | 96
País: | Brazil
Título: | Intake and performance of confined crossbred heifers fed different lipid sources
Autores: | Fiorentini,Giovani; Santana,Márcia Cristina Araújo; Sampaio,Alexandre Amstalden Moraes; Reis,Ricardo Andrade; Ribeiro,Andressa Ferreira; Berchielli,Telma Teresinha.
Data: | 2012-06-01
Ano: | 2012
Palavras-chave: | Carcass; Females; Ingestion; Protected fat; Soy oil and soybean.
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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600025
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982012000600025
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.41 n.6 2012
Fonte: | info:eu-repo/semantics/openAccess