黄芪粉对快大型优质鸡血脂和体脂含量的影响

目的]研究黄芪粉对快大型优质鸡血脂和体脂的影响,为将其应用于家禽生产提供理论依据。方法]将180只1日龄良凤花鸡随机均分为6组,试验1组为对照组,饲喂基础日粮 试验2组、3组和4组分别在基础日粮中添加0.75%、1.0%、1.25%的黄芪粉 试验5、6组分别在基础日粮中添加1.0%和1.25%黄芪粉,投喂10天后停喂10天,全程循环。分别于35日龄和63日龄时测定甘油三酯（TG）、胆固醇（TCHO）、高密度脂蛋白胆固醇（HDL-C）和低密度脂蛋白胆固醇（LDL-C）的含量,63日龄时测定腹脂率（PAF）,肌间脂肪宽度（IMF）、皮下脂肪厚度（SFP）。结果]与对照组相比,在35日龄时,第3组、4组和6组TCHO含量显著或极显著降低（P〈0.05或P〈0.01）,第3组和6组LDL-C含量显著降低（P〈0.05）,第5组HDL-C含量显著增加（P〈0.05） 与对照组相比,在63日龄时,黄芪添加组的TG含量极显著降低（P〈0.01）,第3组、4组和5组血清TCHO和LDL-C的含量显著或极显著降低（P〈0.05或P〈0.01）,HDL-C水平显著增加（P〈0.05）,第3组腹脂率显著降低（P〈0.05）。结论]黄芪粉可降低血清TG、TCHO和LDL-C的含量,提高HDL-C水平,对腹部脂肪沉积有一定的调节作用。

Effect of Astragalus Powder on Serum Lipid and Body Fat Content of Fast Large-scale Quality Chickens

Objective] To study the effects of astragalus powder on serum lipids and body fat contents of fast large-scale quality chickens,and thus provide a theoretical basis for its application in poultry production.Method] All the 180 1-day-old healthy Liangfeng chickens were randomly divided into six groups.Group 1 was the control group,fed with basal diet;group 2,group 3 and group 4 were fed with basal diet added with 0.75%,1.0% and 1.25% astragalus powder,respectively;group 5 and group 6 were separately fed with basal diet added with 1.0% and 1.25% astragalus powder,but the astragalus powder was used for 10 d and then was forbidden for 10 d in turn during the whole experiment.The content of triglyceride(TG),total cholesterol(TCHO),high density lipoprotein-cholesterol(HDL-C),and low density lipoprotein-cholesterol(LDL-C)were respectively determined when the chickens were 35-day-old and 63-day-old,while the percentage of abdominal fat(PAF) as well as intermuscular fat(IMF) and subcutaneous fat ply(SFP) was measured when the chickens were 63-day-old.Result] In 35-day-old chickens,the levels of TCHO were significantly or very significantly lower in group 3,group 4,and group 6 than in control group(P<0.05 or 0.01);the levels of LDL-C significantly lower in group 3 and group 6(P<0.05);the level of HDL-C significantly higher in group 5(P<0.05).In 63-day-old chickens,the levels of TCHO and LDL-C were significantly or very significantly lower in group 3,group 4,and group 5 than in control group(P<0.05 or 0.01) while the levels of HDL-C were significantly higher in these groups;the PAF was significantly lower in group 3(P<0.05).Conclusion] Astragalus powder should reduce the levels of TG,TCHO and LDL-C,promote HDL-C content,and also play a certain regulative role in deposition of abdominal fat.