Department of Animal and Veterinary Sciences, College of Agricultural and Marine Sciences, Sultan Qaboos University, P.O. Box 34, Al-Khod 123, Sultanate of Oman Sultanate, Oman.
Meat Sci. 2004 Aug;67(4):577-85. doi: 10.1016/j.meatsci.2003.12.011.
Distribution of fat, muscle and bone tissues was studied in bucks, wethers and doe Jebel Akhdar (JA) Omani goats raised under intensive management and slaughtered at 11, 18 or 28 kg body weight (BW). Weight of individual tissues was expressed as percentage of total respective tissue weight in the half carcass. Weight of total body fat in the empty body weight (EBW) ranged between 7.6% in bucks at 11 kg BW and 23.5% in does at 28 kg BW. At 18 kg BW, JA goats had higher TBF, carcass and non-carcass fat than those slaughtered at 12 kg BW (P<0.001). Does and wethers had a faster rate of deposition of carcass and non-carcass fat relative to EBW. Therefore, they had higher fat content (P<0.001) than bucks at 28 kg BW. The highest proportion of fat in the body was deposited intermusculary whereas the omentum constituted the highest non-carcass fat proportion. About 55% of the musculature in JA goat carcasses was found in muscle groups of the proximal hind leg, around the vertebral column and in the proximal forelimb (expensive muscle groups). Bucks had higher proportions of musculature in the forequarter (P<0.001) and intrinsic muscles of the neck but lower proportions of muscles at the proximal hind limb (P<0.001) than does and wethers. About 51% of the total skeleton was found in the axial skeleton, 22-23% in the forelimb and 22-23% in the hind limb of JA goats. There were few sex or slaughter weight effects on proportions of bone weight in the skeleton. In general, slaughter weight and sex effects on tissue distribution were more pronounced in the fat tissue. The magnitude of these effects on muscle and bone tissues was small and is unlikely to have economic impact on meat production from goats.
在集约管理下饲养的 11、18 或 28 公斤体重（BW）的 Jebel Akhdar（JA）阿曼山羊公山羊、母羊和母羊中，研究了脂肪、肌肉和骨骼组织的分布。各组织的个体重量表示为半胴体中相应组织总重量的百分比。在空腹体重（EBW）中，总体脂肪的重量在 11 公斤 BW 时的公山羊中为 7.6%，在 28 公斤 BW 时的母羊中为 23.5%。在 18 公斤 BW 时，JA 山羊的 TBF、胴体和非胴体脂肪比 12 公斤 BW 时的屠宰体重更高（P<0.001）。母羊和公羊相对于 EBW 具有更快的胴体和非胴体脂肪沉积率。因此，它们的脂肪含量（P<0.001）高于 28 公斤 BW 时的公山羊。体内最高比例的脂肪沉积于肌肉间，而大网膜构成了最高的非胴体脂肪比例。JA 山羊胴体中的大约 55%的肌肉位于后肢近端的肌肉群、脊柱周围和前肢近端（昂贵的肌肉群）。公山羊的前躯（P<0.001）和颈部的固有肌肉中的肌肉比例更高，而后肢近端的肌肉比例较低（P<0.001），母羊和公羊的比例高于公山羊。JA 山羊的总骨骼中约有 51%位于轴骨骼中，22-23%位于前肢中，22-23%位于后肢中。骨骼中骨骼重量的比例几乎没有性别或屠宰体重的影响。一般来说，屠宰体重和性别对脂肪组织分布的影响更为明显。这些对肌肉和骨骼组织的影响程度较小，不太可能对山羊的肉类生产产生经济影响。
