发酵黄芪对断奶仔猪生长性能和抗氧化能力的影响

Effects of fermented Astragalus membranaceus on growth performance and antioxidant capacity of weaned piglets

文章旨在探究发酵黄芪对断奶仔猪生长性能和抗氧化能力的影响。试验将400头生长发育状况良好、体重相近的24日龄断奶仔猪随机分为4组,每组10个重复,每重复10头。对照组(试验Ⅰ组)饲喂基础日粮,未发酵黄芪干粉组(试验Ⅱ组)饲喂基础日粮+0.5%的黄芪干粉,乳酸菌组(试验Ⅲ组)饲喂基础日粮+0.5%乳酸菌,发酵黄芪组(试验Ⅳ组)饲喂基础日粮+0.5%乳酸菌发酵黄芪。试验为期42 d(其中预饲期7 d,正试期35 d)。试验结果表明,在初始体重一致的前提下(P<0.05);与对照组相比,日粮添加发酵黄芪断奶仔猪的终末体重显著提高8.7%(P<0.05),平均日增重显著提高12%(P<0.05),料重比显著降低10%(P<0.05),此外,各处理组间料重比均无显著差异(P>0.05)。日粮添加乳酸菌和发酵黄芪组断奶仔猪血清CAT活性显著高于其他各组,其中以发酵黄芪组CAT活性最高(P<0.05),日粮添加黄芪干粉和发酵黄芪显著提高断奶仔猪血清GPX活性(P<0.05),日粮添加发酵黄芪显著提高断奶仔猪血清T-SOD和T-AOC活性(P<0.05),降低MDA含量(P<0.05),各处理组间断奶仔猪血清Cu-Zn SOD活性无显著影响(P>0.05)。日粮添加发酵黄芪可显著提高断奶仔猪回肠CAT和GPX活性(P<0.05),降低回肠MDA含量(P<0.05);此外,日粮添加发酵黄芪对断奶仔猪回肠T-SOD、Cu-Zn SOD和T-AOC活性均无显著影响(P>0.05)。总之,本试验结果表明,日粮添加发酵黄芪能显著提高断奶仔猪的生长性能。

The effect of fermented Astragalus membranaceus on growth performance and antioxidant capacity of weaned piglets.Select 40024 day old weaned piglets with good growth and development status and similar weight,and randomly divide them into 4 groups,with 10 replicates in each group,with 10 piglets per replicate.The control group(ExperimentⅠgroup)was fed with basic diet,the unfermented Astragalus dry powder group(ExperimentⅡgroup)was fed with basic diet+0.5%Astragalus dry powder,the lactobacillus group(ExperimentⅢgroup)was fed with basic diet+0.5%Lactobacillus,and the fermented Astragalus group(ExperimentⅣgroup)was fed with basic diet+0.5%Lactobacillus fermented Astragalus.The experiment lasted for a total of 42 days(including 7 days of pre test and 35 days of trial).The experimental results showed that there was no significant difference in initial body weight(P<0.05);Compared with the control group,the addition of fermented Astragalus membranaceus to the diet significantly increased the final body weight of weaned piglets by 8.7%(P<0.05),the average daily gain significantly increased by 12%(P<0.05),and the feed to weight ratio significantly decreased by 10%(P<0.05).In addition,there was no significant difference in the feed to weight ratio between the treatment groups(P>0.05).The serum CAT activity of weaned piglets with the addition of lactic acid bacteria and fermented Astragalus membranaceus was significantly higher than that of other groups.Among them,the fermented Astragalus membranaceus group had the highest CAT activity(P<0.05).The addition of dried Astragalus membranaceus powder and fermented Astragalus membranaceus membranaceus significantly increased the serum GPX activity of weaned piglets(P<0.05).The addition of fermented Astragalus membranaceus significantly increased the serum T-SOD and T-AOC activity of weaned piglets(P<0.05)and decreased the MDA content(P<0.05).In addition,There was no significant effect(P>0.05)on the serum Cu Zn SOD activity of weaned piglets among different treatment groups.Adding fermented Astragalus membranaceus to the diet significantly increased the activity of CAT and GPX in the ileum of weaned piglets(P<0.05),and decreased the content of serum MDA(P<0.05);In addition,the addition of fermented Astragalus membranaceus to the diet did not significantly affect the activities of T-SOD,Cu Zn SOD,and T-AOC in the ileum of weaned piglets(P>0.05).In summary,the results of this experiment indicate that adding fermented Astragalus membranaceus to the diet can significantly improve the growth performance of weaned piglets.