摘要
以高邮鸭为试验素材 ,屠宰测定 1～ 8周龄鸭腹脂重、皮下脂肪重 (腿、颈部 )、肌脂率 (腿、胸肌 )和肝脂率 ,研究其体脂分布和沉积变化规律。结果表明 :高邮鸭生长发育的早期 ,腿部皮下脂肪、腹部脂肪、颈部皮下脂肪比胸部皮下脂肪沉积早。高邮鸭早期生长过程中 ,腹脂相对于屠体重的比值呈上升趋势 ,说明腹部脂肪的沉积速率大于体重的生长速率。3～ 5周龄鸭的肌脂率、肝脂率的变化曲线是一致的。各周龄鸭肝脏含脂率高于肌肉含脂率 。
One to 8 weeks Gaoyou ducks were slaughtered to weight abdominal and subcutaneous fat (both thighs, neck) and to measure fat in intramuscular and liver. The law of body fat′s distribution and deposition were studied. The results were as follows: In the early stage of Gaoyou duck′s growth, abdominal and subcutaneous fat at thighs and neck deposited earlier than subcutaneous fat at chest, and the weight of abdominal fat compared with carcass weight was increasing with aging, which showed abdominal fat increased faster than body weight. The change of fat percent in intramuscular and liver was the same during 3 to 5 weeks periods. Higher fat percent of liver than muscle might result from that liver is the place of lipid synthesis.
基金
江苏省教育厅自然科学基金资助项目 (0 0 KJB2 3 0 0 0 1)
关键词
高邮鸭
体脂
沉积规律
鸭
Gaoyou duck
body fat
law of deposit
