Carcass characteristics and cuts of Santa Inês lambs fed different roughage proportions and fat source

Revista Brasileira de Zootecnia

Iraides Ferreira Furusho Garcia¹  Amélia Katiane De Almeida¹  Tharcilla Isabella Rodrigues Costa¹  Izac Leopoldino Júnior¹  Julimar Do Sacramento Ribeiro¹  Fernando Antonio De Souza¹ 

[1] ,Universidade Federal dos Vales do Jequitinhonha e Mucuri Departamento de Zootecnia

关键词: nutrition;    ovine meat;    performance;    protected fat;    soy bean;    carne ovina;    desempenho;    gordura protegida;    grão de soja;    nutrição;   

DOI  :  10.1590/S1516-35982010000600022

来源: SciELO

【 摘 要 】

This work aimed at determining the influence of roughage proportions and fat source of the diet on characteristics of carcass and comercial cuts of lambs. It was used 24 non-castrated Santa Inês male lambs, ad libitum fed diet with two proportions of roughage (30 and 70%) and fat (no fat, protected fat, and soybean) slaughtered at an avarage body weight of 35.4 kg (± 1.5 kg). Animals fed 30% roughage diet showed the highest weights and carcass yields. The percentages of posterior arm and ham were higher in animals fed 30% roughage with no addition of fat source. Total leg length and internal length were higher in animals fed 70% roughage diet while leg width was higher for those fed 30% roughage diet. Addition of fat source in diets with high percentage of concentrate can increase carcass yields. This effect is higher when protected fat is used regarded to whole soybean. Although diets do not have effect on most of these cuts, the effect on the ham confirms the influence of the diet on this noble cuts.

【 授权许可】

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