Dhanda J S, Taylor D G, McCosker J E, Murray P J
School of Veterinary Science and Animal Production, The University of Queensland, Gatton College, Queensland 4345, Australia.
Meat Sci. 1999 Aug;52(4):355-61. doi: 10.1016/s0309-1740(99)00016-9.
Fifty buck kids from five goat genotypes, Boer × Angora (BA), Boer × Saanen (BS), Feral × Feral (FF), Saanen × Angora (SA) and Saanen × Feral (SF) were compared for production of Capretto and Chevon carcasses. BS and SF kids had significantly better average daily gain compared to other genotypes and took less time to reach the required liveweight for Capretto and Chevon production. The development of visceral organs was not influenced by genotype. Kids from dairy breeds (SA in case of Capretto and SF in case of the Chevon group) deposited more internal fat in comparison to other genotypes. Dressing percentage (based on empty body weight) of kids ranged from 50-55%. At the same liveweight, dressing percentage and eye muscle dimensions did not vary between genotypes. However, BS and SF kids produced longer carcasses. Subcutaneous fat thickness was significantly greater in Chevon carcasses from BA compared to other genotypes. A high correlation was found between fat thickness measured by ultrasound on the live animal and ruler measurement on the carcass at the 12/13th rib position. Based on growth and carcass characteristics BS and SF kids performed better than kids from other genotypes used in the present study.
对来自五种山羊基因型（波尔山羊×安哥拉山羊（BA）、波尔山羊×萨能山羊（BS）、野生山羊×野生山羊（FF）、萨能山羊×安哥拉山羊（SA）和萨能山羊×野生山羊（SF））的50只羔羊进行了羔羊肉和山羊肉胴体生产性能的比较。与其他基因型相比，BS和SF羔羊的平均日增重显著更高，达到羔羊肉和山羊肉生产所需活重的时间更短。内脏器官的发育不受基因型的影响。与其他基因型相比，乳用品种的羔羊（羔羊肉组为SA，山羊肉组为SF）沉积的内脏脂肪更多。羔羊的屠宰率（基于空腹体重）在50%-55%之间。在相同活重下，不同基因型之间的屠宰率和眼肌尺寸没有差异。然而，BS和SF羔羊的胴体更长。与其他基因型相比，BA山羊肉胴体的皮下脂肪厚度显著更大。在活体动物上通过超声测量的脂肪厚度与在第12/13肋位置胴体上用尺子测量的脂肪厚度之间存在高度相关性。基于生长和胴体特征，BS和SF羔羊的表现优于本研究中使用的其他基因型的羔羊。
