仙人掌提取物对蛋鸡产蛋性能、抗氧化能力、免疫功能及血液生化指标的影响

试验选取360只315日龄罗曼蛋鸡,随机分为4组,每组3个重复,每个重复30只鸡,分别饲喂添加0(对照组)、100、200、300 mg/kg仙人掌提取物的试验日粮,试验期49 d。研究仙人掌提取物对蛋鸡产蛋性能、血液生化指标、抗氧化能力和免疫机能的影响。结果表明:(1)日粮添加仙人掌提取物对蛋鸡采食量无显著影响(P>0.05),可显著提高产蛋率和平均蛋重(P<0.05);(2)200、300 mg/kg添加量水平可显著提高蛋鸡血清中钙、磷的含量,显著降低血清中胆固醇的含量;(3)仙人掌提取物能够提高蛋鸡血清中谷胱甘肽过氧化物酶、超氧化物歧化酶的活性和降低血清中丙二醛的含量;(4)300 mg/kg添加量能够显著提高蛋鸡血清中IgA、IgE、IgM、补体C3和补体C4的含量(P<0.05)。上述结果说明,在饲料中添加仙人掌提取物能够在一定程度上提高蛋鸡产蛋性能、抗氧化能力和免疫功能,改善血液生化指标。

Effects of cactus extract on laying performance,antioxidant,immunity function and biochemical index

The experiment was conducted to investigate the effects of cactus extract on laying performance,blood biochemical index,antioxidant capacity and immunity function of hens.Three hundred and sixty 315-day-old Roman hens were randomly divided into 4 groups with 3 replicates of 3 each,Ⅰ group was fed the basal diet as a control group.While the others were fed the basal diet supplemented with 100,200,300 mg/kg cactus extract as treatments,respectively.The experiments lasted for 49 days.The results showed as follows:(1)laying performance of hens in group Ⅱand group Ⅲ was significantly improved(P < 0.05),while feed intake was not significantly affected(P > 0.05).(2)Cactus extract 200,300 mg/kg adding level could significantly increase the content of Ca and P in serum(P < 0.05),and decrease cholesterol(P < 0.05).(3)Cactus could increase serum GSH-Px and SOD activity,and decrease the content of serum MDA content(P < 0.05).(4)300 mg/kg adding level could significantly increase IgE,IgM,IgA,complement C3 and complement C4 contents in serum(P < 0.05).In conclusion,supplementing cactus extract in diet could effectively improve the laying performance,immune function,antioxidant capacity,and serum biochemical indices.