Amin MR, Husain SS, Islam AB
Department of Animal Breeding and Genetics, Bangladesh Agricultural University, -2202, Mymensingh, Bangladesh
Small Rumin Res. 2000 Nov 1;38(3):211-215. doi: 10.1016/s0921-4488(00)00165-6.
Carcass quality of JamunaparixBlack Bengal (JBB), Black Bengal selected for growth (SBB) and random-bred (RBB) wethers of 1 year of age was studied. There was no significant difference between JBB and SBB in pre-slaughter traits and carcass characteristics, except height at wither and dressing percentage which were significantly higher in JBB than in SBB, and muscle fiber diameter which was significantly smaller in JBB than in SBB. Performance of RBB was significantly lower than JBB and SBB. When hot carcass, non-carcass, variety meat, prime cuts, fat deposition and total saleable portion were expressed as % of empty live weight and compared among genetic groups, JBB ranked first. Selection for rapid growth rate within Black Bengal goat increased its live weight and improved meat production. Increased live weight showed a positive relationship with increased fat deposition. Relationships between 'eye muscle' area and hot carcass yield, empty live weight and gut fat and perinephric fat and gut fat were positive and significant.
对1岁龄的贾穆纳帕里×黑孟加拉（JBB）、选种用于生长的黑孟加拉（SBB）和随机繁育（RBB）阉羊的胴体品质进行了研究。JBB和SBB在宰前性状和胴体特征方面没有显著差异，但肩峰高度和屠宰率除外，JBB的肩峰高度和屠宰率显著高于SBB，而JBB的肌纤维直径显著小于SBB。RBB的性能显著低于JBB和SBB。当热胴体、非胴体、杂碎肉、上等切块、脂肪沉积和总可售部分以空腹活重的百分比表示并在遗传群体间进行比较时，JBB排名第一。在黑孟加拉山羊中选择快速生长率可增加其活重并提高肉类产量。活重增加与脂肪沉积增加呈正相关。“眼肌”面积与热胴体产量、空腹活重与肠脂以及肾周脂肪与肠脂之间的关系呈正且显著。
