日粮中添加生物制剂对发酵床育肥后期猪生长性能、血清生化指标及内分泌激素的影响

摘要/Abstract

摘要： 本试验旨在研究日粮中应用生物制剂对发酵床育肥后期猪生长性能、血清生化指标及内分泌激素的影响.选取健康无病的70 kg左右的苏钟猪120头,随机分为2组,每组4个重复,每个重复15头猪.对照组饲喂基础日粮,试验组在基础日粮中添加生物制剂(包括植酸酶、复合酶、枯草芽孢杆菌、酵母菌、乳酸菌),预试期7 d,正试期28 d.结果表明,与对照组相比,试验组平均日增重提高了4.62%,料重比降低了6.53%,但差异均不显著(P>0.05).与对照组相比,试验组血清中甘油三酯(TG)含量极显著降低(P<0.01),其他血清生化指标均无显著差异(P>0.05).与对照组相比,试验组血清中胰岛素(INS)和胰岛素样生长因子(IGF-Ⅰ)含量分别显著和极显著升高(P<0.05;P<0.01),血清中甲状腺素(T3、T4)、生长激素(GH)含量虽有升高的趋势,但差异均不显著(P>0.05).综上所述,在发酵床育肥后期猪日粮中添加生物制剂,可提高猪的生长性能,改善营养物质代谢水平,降低血清中TG的含量,并提高猪血清中IGF-Ⅰ及INS的含量,改善猪体内内分泌激素的水平,建议生产中在发酵床育肥后期猪日粮中应用由植酸酶、复合酶、枯草芽孢杆菌、酵母菌、乳酸菌组成的生物制剂.

关键词: 生物制剂; 猪; 生长性能; 血清生化指标; 内分泌激素

Abstract: The experiment was conducted to investigate the effect of biologics on growth performance, serum biochemical parameters and endocrine hormone in late fattening pigs of microbial fermentation bed system.A total of one hundred and twenty Suzhong pigs (70 kg) were randomly allotted to 2 treatments with 4 replicates per treatment, the control group was fed basal diet, the experimental group was fed the basal diet supplemented with biologics (including phytase, composite enzyme, Bacillus subtilis, yeast and Lactobacillus).There was a period of 7 days followed by an experimental period of 28 days.The results showed that compared with the control group, the average daily gain in experimental group was increased by 4.62%, and the gain to feed ratio was decreased by 6.53%, but the difference was not significant (P>0.05).Compared with the control group, the serum triglyceride (TG) content in experimental group was extremely significantly decreased (P<0.01), but there were no significant differences in the other parameters (P>0.05).Compared with the control group, the serum insulin (INS) and insulin-like growth factors-Ⅰ (IGF-Ⅰ) contents in experimental group was significantly and extremely significantly increased (P<0.05;P<0.01), respectively, the serum triiodothyronine (T3), thyroxine (T4) and growth hormone (GH) contents in experimental group had an increasing tendency, but the difference was not significant (P>0.05).In conclusion, adding biologics could improve the growth performance, the level of nutrient metabolism, the contents of IGF-Ⅰand INS, and the serum level of endocrine hormones, while it reduce the serum content of TG in pig, we suggested that the diets in late fattening pigs of microbial fermentation bed system might be added phytase, composite enzyme, Bacillus subtilis, yeast and Lactobacillus.

Key words: biologics; pig; growth performance; serum biochemical parameters; endocrine hormone

中图分类号:

S828

闫俊书, 宦海琳, 周维仁, 杨杰, 徐小明, 冯国兴, 韩祥林, 顾洪如. 日粮中添加生物制剂对发酵床育肥后期猪生长性能、血清生化指标及内分泌激素的影响[J]. , 2014, 41(12): 126-130.

YAN Jun-shu, HUAN Hai-lin, ZHOU Wei-ren, YANG Jie, XU Xiao-ming, FENG Guo-xing, HAN Xiang-lin, GU Hong-ru. Effect of Biologics on Growth Performance,Serum Biochemical Parameters and Endocrine Hormone in Late Fattening Pigs of Microbial Fermentation Bed System[J]. , 2014, 41(12): 126-130.

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