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Desmame precoce e a suplementação concentrada no peso ao abate e nas características de carcaça de cordeiros terminados em pastagens

Authors: Fernandes, Sérgio Rodrigo; Monteiro, Alda Lúcia Gomes; Silva, Cláudio José Araujo da; Silva, Marina Gabriela Berchiol da; Rossi Júnior, Paulo; Souza, Damaris Ferreira de; Salgado, Jordana Andrioli; +1 Authors

Desmame precoce e a suplementação concentrada no peso ao abate e nas características de carcaça de cordeiros terminados em pastagens

Abstract

Objetivou-se avaliar a influência das estratégias de desmame precoce e de suplementação concentrada no peso ao abate e nas características de carcaça de cordeiros Suffolk em quatro sistemas de terminação em pastagem de Tifton-85: (1) cordeiros mantidos ao pé da mãe e não suplementados até o abate; (2) cordeiros mantidos ao pé da mãe e suplementados com concentrado em creep feeding até o abate; (3) cordeiros desmamados precocemente e não suplementados até o abate; (4) cordeiros desmamados precocemente e suplementados com concentrado até o abate. Cordeiros terminados em creep feeding apresentaram peso ao abate e de carcaça superiores. O desmame precoce ocasionou diminuição, e a suplementação concentrada proporcionou aumento nos rendimentos e na espessura de cobertura de gordura da carcaça e nos escores de deposição de gordura pélvico-renal, de cobertura de gordura da carcaça e de condição corporal dos cordeiros ao abate. O sistema com desmame precoce e com suplementação concentrada, e o sistema sem desmame e sem suplementação permitem que os cordeiros atinjam peso e condição corporal adequados ao abate, o que favorece a produção de carcaças com características aptas para comercialização. A suplementação concentrada ofertada em creep feeding é interessante para produzir carcaças com maior peso que aquelas produzidas no sistema com desmame precoce e com suplementação concentrada, e no sistema sem desmame e sem suplementação. A utilização do desmame precoce como estratégia única para terminação de cordeiros em pastagem não permite que os animais atinjam peso e condição corporal adequados ao abate, portanto, não deve ser recomendada.

The study was designed to investigate the effect of early weaning and concentrate supplementation on the slaughter weight and carcass traits of Suffolk lambs in four production systems on Tifton-85 pasture: (1) suckling lambs not supplemented until slaughter; (2) suckling lambs supplemented with concentrate in creep feeders until slaughter; (3) early weaned lambs not supplemented until slaughter; (4) early weaned lambs supplemented with concentrate until slaughter. Lambs supplemented in creep feeding showed higher slaughter and carcass weights. Early weaning led to decrease and concentrate supplementation to increase in the yield and thickness of covering fat in the carcass, and the scores in pelvic-renal fat deposition, fat covering carcass and body condition to slaughter. Systems with early weaning and concentrate supplementation, and without weaning and supplementation allows that lambs reach suitable weight and body condition score to slaughter, resulting in production of carcasses with acceptable characteristics for marketing. Concentrate supplementation offered in creep feeders is useful to produce higher weight carcasses than those produced in systems with early weaning and concentrate supplementation, and without weaning and supplementation. The use of early weaning as a single strategy to produce lambs in pasture leads to unsuitable weight and body condition score to slaughter and is not recommended.

Country
Brazil
Keywords

Fat covering, Body condition, Milk, Condição corporal, Leite, Concentrate, Cobertura de gordura, Concentrado

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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