马铃薯蛋白饲料对断奶仔猪生长性能、免疫器官指数及抗氧化功能的影响

The effect of potato protein feed on growth performance,immune organ index,and antioxidant function of weaned piglets

文章旨在探究马铃薯蛋白饲料对断奶仔猪生长性能、免疫器官指数及抗氧化功能的影响。试验将400头28日龄体重(7.93±0.14)kg的健康杂交仔猪随机分为4组,每个重复10头,各组分别饲喂添加0%、1%、2%和4%的马铃薯蛋白饲料的试验日粮。试验为期28d。结果表明:与对照组相比,补充2%和4%马铃薯蛋白组仔猪的平均日增重(ADG)分别显著降低9.87%和10.19%(P<0.05);补充2%和4%马铃薯蛋白组仔猪的F/G分别显著提高11.20%和11.11%(P<0.05);此外,补充0%~4%的马铃薯蛋白对仔猪初重(IBW)、末重(FBW)和平均日采食量(ADFI)均无显著影响(P>0.05)。补充2%和4%马铃薯蛋白组仔猪的淋巴结指数和胰腺指数显著低于对照组(P<0.05);与对照组相比,补充0%~4%的马铃薯蛋白组仔猪的脾脏指数显著提高(P<0.05);此外,补充0%~4%的马铃薯蛋白对仔猪肝脏、肾脂、腹股沟淋巴结和胸腺指数均无显著影响(P>0.05)。补充2%和4%马铃薯蛋白组仔猪血清SOD活性显著提高,且组间差异不显著(P>0.05);补充0%~4%马铃薯蛋白组仔猪血清OH显著降低(P<0.05);与对照组相比,补充2%~4%马铃薯蛋白组仔猪血清H_(2)O_(2)显著提高(P<0.05);此外,补充0%~4%马铃薯蛋白对仔猪血清过氧化氢酶(CAT)活性、总抗氧化能力(T-AOC)能力和一氧化氮(NO)含量均无显著影响(P>0.05)。总之,马铃薯蛋白添加量高于2%时,对仔猪生长性能有明显负面影响。因此,在本试验条件下,马铃薯蛋白最适添加量为1%。

The aim of this experiment is to investigate the effects of potato protein feed on the growth performance,immune organ index,and antioxidant function of weaned piglets.400 healthy 28 day old hybrid piglets with a body weight of(7.93±0.14)kg were randomly divided into 4 groups,with 10 piglets as 1 replicate and 10 replicates as 1 group.They were fed experimental diets supplemented with 0%,1%,2%,and 4%potato protein feed,respectively.The breeding experiment lasted for 28 days.The results showed that compared with the control group,the ADG of piglets supplemented with 2%and 4%potato protein significantly decreased by 9.87%and 10.19%,respectively(P<0.05);The F/G of piglets supplemented with 2%and 4%potato protein significantly increased by 11.20%and 11.11%,respectively(P<0.05);In addition,supplementing 0%to 4%potato protein had no significant effect on IBW,FBW,and ADFI of piglets(P>0.05).The lymph node index and pancreatic index of piglets supplemented with 2%and 4%potato protein were significantly lower than those of the control group(P<0.05);Compared with the control group,the spleen index of piglets in the group supplemented with 0%to 4%potato protein was significantly increased(P<0.05);In addition,supplementing 0%to 4%potato protein had no significant effect on the liver,renal fat,inguinal lymph nodes,and thymus index of piglets(P>0.05).The serum SOD activity of piglets supplemented with 2%and 4%potato protein significantly increased,and there was no significant difference between the groups(P<0.05);The supplementation of 0%-4%potato protein significantly reduced serum OH in piglets(P<0.05);Compared with the control group,the group supplemented with 2%-4%potato protein significantly increased serum H2O_(2) in piglets(P<0.05);In addition,supplementing 0%to 4%potato protein had no significant effect on the serum CAT activity,T-AOC ability,and NO content of piglets(P>0.05).In summary,when the amount of potato protein added exceeds 2%,it has a significant negative impact on the growth performance of piglets.Therefore,under the conditions of this experiment,the optimal amount of potato protein added is 1%.