新型复合抗氧化剂对青脚麻鸡生长性能及抗氧化功能的影响

Effects of New Compound Antioxidants on Growth Performance and Antioxidant Function of Cyan-Shank Partridge Chickens

本试验旨在研究饲粮添加新型复合抗氧化剂对青脚麻鸡生长性能、肉品质及抗氧化功能的影响。选择2880羽健康、体重接近的1日龄青脚麻鸡,随机分为6组,分别为对照组(基础饲粮)、维生素E组(基础饲粮+100 mg/kg维生素E)、乙氧基喹啉(EQ)组(基础饲粮+250 mg/kg EQ)、X1组(基础饲粮+150 mg/kg新型复合抗氧化剂)、X2组(基础饲粮+300 mg/kg新型复合抗氧化剂)、X3组(基础饲粮+450 mg/kg新型复合抗氧化剂),每组8个重复,每个重复60羽。试验期54 d。结果表明:1)与对照组相比,X1组、X2组、X3组青脚麻鸡1~54日龄的料重比(F/G)显著降低(P<0.05);与EQ组和对照组相比,X3组青脚麻鸡22~54日龄、1~54日龄的平均日增重(ADG)显著提高(P<0.05)。2)与对照组相比,X1组、X2组、X3组肌肉的亮度值显著降低(P<0.05);与EQ组和对照组相比,X2组、X3组的肌肉剪切力显著降低(P<0.05),X2组的肌肉蒸煮损失显著降低(P<0.05);与维生素E组、EQ组和对照组相比,X3组肌肉的红度值显著提高(P<0.05)。3)与对照组相比,X1组21、54日龄青脚麻鸡血清过氧化氢酶(CAT)活性显著提高(P<0.05),X2组54日龄青脚麻鸡血清的谷胱甘肽过氧化物酶(GSH-Px)活性显著提高(P<0.05),21、54日龄青脚麻鸡肾脏、心脏及21日龄青脚麻鸡血清的丙二醛(MDA)含量显著降低了(P<0.05);与维生素E组、EQ组和对照组相比,X2组、X3组21、54日龄青脚麻鸡肾脏的超氧化物歧化酶(SOD)活性显著提高(P<0.05),X3组21、54日龄青脚麻鸡肾脏、胸肌的GSH-Px活性显著提高(P<0.05),21、54日龄青脚麻鸡胸肌的MDA含量显著降低(P<0.05)。由此可见,饲粮中添加新型复合抗氧化剂可显著提高青脚麻鸡的生长性能,且300或450 mg/kg的新型复合抗氧化剂能够显著提高青脚麻鸡的肉品质和抗氧化功能。

This experiment was conducted to study the effects of new compound antioxidants on growth performance,meat quality and antioxidant function of cyan-shank partridge chickens.A total of 2880 healthy 1-day old cyan-shank partridge chickens with similar weight were randomly divided into 6 groups:control group(basal diet),vitamin E group(basal diet+100 mg/kg vitamin E),ethoxyquin(EQ)group(basal diet+250 mg/kg EQ),X1 group(basal diet+150 mg/kg new compound antioxidant),X2 group(basal diet+300 mg/kg new compound antioxidant),X3 group(basal diet+450 mg/kg new compound antioxidant),there were 8 replicates in each group,60 replicates in each group.The test period was 54 days.The results showed as follows:1)compared with the control group,the feed/gain(F/G)of cyan-shank partridge chickens aged 1 to 54 days in X1,X2,X3 groups significantly decreased(P<0.05);compared with EQ group and control group,the average daily gain(ADG)of cyan-shank partridge chickens aged 22 to 54 days and 1 to 54 days in X3 group was significantly increased(P<0.05).2)Compared with the control group,the muscle brightness in X1,X2 and X3 groups decreased significantly(P<0.05);compared with EQ group and control group,the muscle shear force in X2 group and X3 group decreased significantly(P<0.05),and the muscle cooking loss in X2 group decreased significantly(P<0.05);compared with vitamin E group,EQ group and control group,the redness of muscle in X3 group was significantly increased(P<0.05).3)Compared with the control group,the catalase(CAT)activity in serum of cyan-shank partridge chickens at 21 and 54 days of age in X1 group significantly increased(P<0.05),the glutathione peroxidase(GSH-Px)activity in serum of cyan-shank partridge chickens at 54 days of age in X2 group significantly increased(P<0.05),and the contents of malondialdehyde(MDA)in kidney,heart and serum of cyan-shank partridge chickens at 21 and 54 days of age significantly decreased(P<0.05);compared with vitamin E group,EQ group and control group,the activity of superoxide dismutase(SOD)in the kidney of cyan-shank partridge chickens at 21 and 54 days of age in X2 and X3 groups significantly increased(P<0.05),the activity of GSH-Px in the kidney and pectoral muscle of cyan-shank partridge chickens at 21 and 54 days of age in X3 group significantly increased(P<0.05),and the content of MDA in the pectoral muscle of cyan-shank partridge chickens at 21 and 54 days of age significantly decreased(P<0.05).It can be seen that the growth performance of cyan-shank partridge chickens can be significantly improved by adding new compound antioxidants to the feed,and 300 or 450 mg/kg of new compound antioxidants can significantly improve the meat quality and antioxidant function of cyan-shank partridge chickens.