Rendimento das vísceras de cabritos mestiços anglo x SRD e Boer x SRD Viscera yield from crossbred goats Anglo x SRD and Boer x SRD

Abstract

Objetivou-se com este estudo avaliar o rendimento das vísceras e gorduras cavitárias de caprinos cruzas Anglo Nubiana x Sem Raça Definida (AN) e Boer x SRD (BO). Foram utilizados 14 animais, abatidos com idade média de 12 meses e peso vivo médio de 28 kg. As vísceras bucal e torácica, representadas pela língua, pulmões, traquéia, esôfago e coração, apresentaram rendimento médio total de 3,63 % do peso do corpo vazio (PCV), sendo 3,79 % para os mestiços (BO) e 3,48 % para os mestiços (AN), não tendo diferença significativa entre ambos grupos genéticos. O rendimento médio total das vísceras abdominais representada pelo fígado, rins e pelas do trato digestivo, foi de 11,28 %, sendo de 11,63 % para nos mestiços BO e 10,96 % nos mestiços AN, sem diferença significativa entre os grupos. A gordura abdominal, mesentérica e omental, dos animais estudados apresentou rendimento médio de 2,97 % do PCV, sendo que os mestiços BO tiveram maior (PWith the objective to evaluate the yield of viscera and cavitary fat of crossbred goats from Anglo Nubian and Boer sires and not well-defined type (SRD), an experiment was carried out. Fourteen animals, being seven ½ Boer x ½ SRD (BO) and seven ½ Anglo Nubian x ½ SRD (AN), were slaughtered at 12 months of age and 28 kg live weight, respectively. Viscera from the mouth and thoracic cavity represented 3,63% of the total empty body weight (EBW), with values of 3,79% for BO and 3,48% for AN, with no differences between groups. Average abdominal viscera yield, including liver, kidney and the gastro-intestinal tract was 11,28% of the EBW, being 11,63% for the BO group and 10,96% for the AN group, without any difference between these groups. Total fat, mesenteric and omental yield for the animals studied was 2,97%. Abdominal fat content in the BO group (3,47%), however, was higher (P<0,05) than the BO group (2,48%). It was concluded that crossbreed goats from Boer and Anglo-Nubian buck with SRD did not show differences in weight and yield of the main edible viscera. This fact indicates that there is no effect of sire breed on these traits. Edible viscera represent about 15% of the empty body weight and should be considered as good prospect to aggregate value to the commercial price of goat.

Keywords

• Caprino
• vísceras
• gordura abdominal
• Goat
• viscera
• abdominal and total fat