摘要:
通过每周测定河田鸡肉鸡(母鸡1～16周、公鸡1～14周)的体脂指标(腹脂率、皮下脂肪厚度、肌间脂肪宽度)及血脂指标[血清甘油三脂(TG)、总胆固醇(TC)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)],研究河田鸡脂肪沉积规律。结果表明:①河田鸡腹脂率呈波浪变化,母鸡腹脂率10周后呈逐渐上升趋势(P0.05)。②公母鸡1周龄的皮下脂肪显著低于其他周龄(P0.05),母鸡2～9周(公鸡2～8周)皮下脂肪差异不显著(P0.05),母鸡10周后(公鸡9周后)皮下脂肪呈逐渐显著上升趋势(P0.05)。③公母鸡1周龄的肌间脂肪显著低于其他周龄(P0.05),母鸡2～9周肌间脂肪差异不显著(P0.05),10周后呈逐渐显著上升趋势(P0.05);公鸡肌间脂肪随周龄阶段呈显著阶梯上升趋势(P0.05)。④母鸡皮下脂肪与腹脂率、肌间脂肪均呈极显著相关(P0.01);公鸡肌间脂肪与腹脂率、皮下脂肪均呈显著相关(P0.05)。⑤不论性别,河田鸡各周龄的血脂指标差异均不显著(P0.05),血脂指标间相关极显著(P0.01),但与周龄、体重及体脂指标均无显著相关(P0.05)。⑥河田鸡体脂与周龄或体重呈显著相关(P0.05),可利用二次曲线回归方程估测河田鸡体脂含量。
关键词:
-
河田鸡 /
-
脂肪 /
-
脂肪沉积 /
-
体脂 /
-
血脂
Abstract:
The experiment was carried out to measure weekly the body fat and serum lipids content of Hetian chickens (female from 1w to 16 w and male from 1 w to 14 w). The serum lipids indices,including triglyceride (TG),total cholesterol (TC),high density lipoprotein-cholesterol (HDL-C) and low density lipoprotein-cholesterol (LDL-C),as well as the body fat indices,including abdominal fat percentage (PAF),subcutaneous fat ply (SFP) and intermuscular fat (IeMF),were measured. The results showed that:(1) PAF fluctuated during the testing period, except an increase in the female chickens observed after 10 week (P > 0.05);(2) SFP was significantly low-er in the 1-week-old than older chickens (P P > 0.05), except a significant increase found among the females after 10w and the males after 9w (P P P > 0.05) but a significant increase after that (P P P P P > 0.05) but a high correlation existed among the indices (P P > 0.05);and (6) the body fat content correlated with age or chickens body weight (P < 0.05), which provided a mean of body fat content estimation by using the reg ression equation.
点击查看大图
下载:
