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Desempenho e características de carcaça de cordeiros das raças Texel, Suffolk e cruza Texel x Suffolk

Authors: Carvalho, Sérgio; Vergueiro, André; Kieling, Roberto; Teixeira, Regina Cánovas; Pivato, Josane; Viero, Renan; Cruz, Alex Nunez da;

Desempenho e características de carcaça de cordeiros das raças Texel, Suffolk e cruza Texel x Suffolk

Abstract

Este experimento objetivou comparar o desempenho e as características de carcaça de 14 cordeiros, sendo quatro da raça Texel, cinco da raça Suffolk e cinco cruza Texel x Suffolk. Os cordeiros foram desmamados aos 64 dias de idade em média, e terminados em regime de confinamento total, até o abate com idade média de 128 dias. Do nascimento ao desmame, as ovelhas (mães dos cordeiros) foram mantidas em pastagem nativa e receberam uma suplementação concentrada na proporção de 1% de peso vivo, tendo também os cordeiros acesso a uma suplementação concentrada na forma de creep-feeding na proporção de 1,5% do peso vivo. O alimento concentrado utilizado na suplementação das ovelhas e dos cordeiros continha 21% de proteína bruta (PB), 70% de nutrientes digestíveis totais (NDT), 2% de cálcio (Ca) e 0,4% de fósforo (P). Após o desmame, os cordeiros passaram a receber uma dieta composta por feno de Tifton-85 (Cynodon dactylon) + concentrado, na proporção 40:60 na Matéria Seca (MS), a qual continha 15,1% de PB, 60,8% de NDT, 1,4% de Ca e 0,3% de P. O peso ao abate foi inferior (P<0,05) nos cordeiros da raça Texel quando comparados aos cordeiros da raça Suffolk e aos da cruza Texel x Suffolk. Os cordeiros cruza Texel x Suffolk tiveram um ganho de peso diário do nascimento ao abate superior (P<0,05) quando comparados aos cordeiros da raça Texel. Os cordeiros cruza Texel x Suffolk também apresentaram um maior consumo de matéria seca (P<0,01) quando comparados aos cordeiros das raças Suffolk e Texel, não havendo entretanto, diferenças entre as raças puras para esta variável. Não foram observadas diferenças estatísticas para as variáveis peso de carcaça quente, rendimento de carcaça quente, pernil, paleta e costilhar. Todavia, verificou-se uma menor porcentagem de pescoço (P<0,05) nos cordeiros cruza Texel x Suffolk, quando comparados aos Suffolk.

Related Organizations
Keywords

sheep, meat, confinamento, breed, raça, ovino, creep-feeding, carne, feedlot

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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!
7
Average
Average
Average
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gold