富硒酵母对仔猪生长性能、血清生化指标和肠道形态的影响

The effects of selenium enriched yeast on growth performance,serum biochemical indicators,and intestinal morphology of piglets

文章旨在探究富硒酵母对仔猪生长性能、血清生化指标和肠道形态的影响。试验将600头(8.05±0.23)kg的健康仔猪分为4组,每组10个重复,每个重复15头仔猪,试验为期28 d。试验日粮分别添加0、0.1、0.2和0.4 mg/kg的富硒酵母。结果表明,与对照组相比,补充0.2和0.4 mg/kg的富硒酵母组仔猪FBW显著提高3.44%和4.03%(P<0.05);ADG显著提高8.14%和11.33%(P<0.05);F/G显著降低7.16%和9.66%(P<0.05);此外,富硒酵母对IBW和ADFI均无显著影响(P>0.05)。0.2和0.4 mg/kg的富硒酵母组仔猪血清IgA、IgG和IL-1β含量显著提高(P<0.05);0.4 mg/kg的富硒酵母组仔猪血清IgM含量显著提高(P<0.05);0.2和0.4 mg/kg的富硒酵母组仔猪血清GSH-Px活性及T-AOC能力显著提高(P<0.05);0.2和0.4 mg/kg的富硒酵母组仔猪血清H2O2含量显著降低(P<0.05);此外,富硒酵母对仔猪血清TNF-α和NO含量、SOD活性均无显著影响(P>0.05)。0.2和0.4 mg/kg富硒酵母组仔猪空肠和回肠绒毛高度显著提高(P<0.05);0.2 mg/kg富硒酵母组仔猪十二指肠隐窝深度显著降低(P<0.05);0.2和0.4 mg/kg富硒酵母组仔猪十二指肠和回肠V/C值显著提高(P<0.05);0.2 mg/kg富硒酵母组仔猪空肠V/C值显著提高(P<0.05)。综上所述,综合本试验检测各指标,富硒酵母最适添加量为0.2 mg/kg。

This experiment aims to explore the effects of selenium enriched yeast on the growth performance,serum biochemical indicators,and intestinal morphology of piglets.600 healthy piglets with a weight of(8.05±0.23)kg were divided into 4 groups,with 10 replicates in each group,and 15 piglets in each replicate.The experiment lasted for a total of 28 days.Add selenium rich yeast at 0,0.1,0.2,and 0.4 mg/kg as the experimental feed.The results showed that compared with the control group,the FBW of piglets in the selenium enriched yeast group supplemented with 0.2 and 0.4 mg/kg significantly increased by 3.44%and 4.03%(P<0.05);ADG significantly increased by 8.14%and 11.33%(P<0.05);F/G significantly decreased by 7.16%and 9.66%(P<0.05);In addition,selenium enriched yeast had no significant effect on IBW and ADFI(P>0.05).Serum IgA,IgG,and IL-1 in piglets treated with selenium enriched yeast at concentrations of 0.2 and 0.4 mg/kgβThe content significantly increased(P<0.05);The serum IgM content of piglets in the selenium enriched yeast group with 0.4 mg/kg was significantly increased(P<0.05);The serum GSH Px activity and T-AOC ability of piglets were significantly increased in the selenium enriched yeast groups of 0.2 and 0.4 mg/kg(P<0.05);The serum H2O2 content of piglets in the selenium enriched yeast groups of 0.2 and 0.4 mg/kg was significantly reduced(P<0.05);In addition,selenium enriched yeast has an effect on the serum TNF-αof piglets.There was no significant effect on NO content and SOD activity(P>0.05).The villus height in the jejunum and ileum of piglets in the 0.2 and 0.4 mg/kg selenium enriched yeast groups was significantly increased(P<0.05);The duodenal crypt depth of piglets in the 0.2 mg/kg selenium enriched yeast group was significantly reduced(P<0.05);The V/C values in the duodenum and ileum of piglets in the 0.2 and 0.4 mg/kg selenium enriched yeast groups were significantly increased(P<0.05);The V/C value of piglets in the 0.2 mg/kg selenium enriched yeast group significantly increased(P<0.05).In summary,based on the comprehensive detection of various indicators in this experiment,the optimal amount of selenium enriched yeast added is 0.2 mg/kg.