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Productive performance and carcass traits of lambs grazing on irrigated pastures and receiving increasing concentrate levels - doi: 10.4025/actascianimsci.v32i3.8320

Authors: Souza, Rafael Araújo; Voltolini, Tadeu Vinhas; Pereira, Luiz Gustavo Ribeiro; Moraes, Salete Alves de; Manera, Daniel Bonfim; Araújo, Gherman Garcia Leal de;

Productive performance and carcass traits of lambs grazing on irrigated pastures and receiving increasing concentrate levels - doi: 10.4025/actascianimsci.v32i3.8320

Abstract

O presente estudo teve como objetivo avaliar o desempenho produtivo e os parâmetros de carcaça de ovinos terminados em pastos irrigados de Tifton 85 que receberam doses crescentes de concentrado. Foram comparadas quatro doses de concentrado (0; 0,66; 1,33 e 2,00% da matéria seca - MS) em relação ao peso corporal dos animais. O período experimental foi de 84 dias, divididos em quatro sub-períodos de 21 dias. Foram utilizados 24 animais testadores, machos, castrados, da raça Santa Inês com peso corporal médio inicial de 20,5 ± 3,8 kg. O delineamento utilizado foi o inteiramente casualizado com seis repetições. O aumento no teor de concentrado proporcionou maior peso corporal final, ganho médio diário, ganho de peso total, escore de gordura pélvico-renal, consumo de matéria seca total, comprimento externo da carcaça, largura da garupa, largura do tórax, profundidade do tórax, perímetro da garupa e perímetro do pernil, além de menor consumo de forragem e contagem de ovos por grama de fezes. Entretanto, o rendimento de carcaça quente não foi influenciado pelas doses de suplemento concentrado. O aumento nas doses de concentrado para ovinos mantidos em pastagens de Tifton 85 melhorou o desempenho produtivo e o peso da carcaça.

The objective of this present study was to evaluate the productive performance and carcass traits of lambs finished on Tifton 85 irrigated pastures and receiving increasing levels of concentrate. Four levels of concentrate were compared on a dry matter basis (0, 0.66, 1.33 and 2.00%) in relation to the body weight of animals. The experimental period was 84 days, divided into four sub-periods of 21 days. Twenty-four Santa Ines male sheep, castrated, weighting 20.5 kg, were used as testers. The experimental design was completely randomized with six replications. The increase in concentrate levels promoted higher final body weight, average daily gain, total weight gain, total dry matter intake, pelvic-renal fat score, external body length, rump width, chest width and depth, croup perimeter and ham perimeter, as well as lower forage dry matter intake and eggs per gram of feces. However, hot carcass dressing was not affected by concentrate supplementation. The increase in concentrate supplementation levels for lambs grazing on Tifton 85 irrigated pastures promoted higher productive performance and carcass weight.

Keywords

suplementação concentrada, sheep carcass, sheep carcass dressing, carcaça vina, concentrate supplementation, suplementação de ovinos, sheep supplementation, rendimento de carcaça ovina

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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!
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