›› 2010, Vol. 37 ›› Issue (3): 18-21.

• 动物营养与饲料科学 • 上一篇    下一篇

白术多糖促仔猪生长的内分泌机制

许丹宁1,田允波1,周家容2,李琦华3,贾俊静3   

  1. (1.仲恺农业工程学院生命科学学院, 广州 510225; 2.华南农业大学理学院, 广州 510642;3.云南省动物营养与饲料重点实验室, 昆明 650201)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-03-20 发布日期:2010-03-20
  • 通讯作者: 田允波

The Endocrinal Mechanism of Polysaccharide of Atractylodes Macrocephala Koidz on Growth Performance of Weaned Piglets

XU Dan-ning1,TIAN Yun-bo1,ZHOU Jia-rong2,LI Qi-hua3,JIA Jun-jing3   

  1. (1.College of Life Science, Zhongkai Uuiversity of Agriculture and Engineering, Guangzhou 510225, China; 2.College of Science, South China Agricultural Uuiversity, Guangzhou 510642, China; 3.Yunnan Key Laboratory of Animal Nutrition and Feed, Kunming 650201, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-03-20 Published:2010-03-20
  • Contact: TIAN Yun-bo

摘要: 试验旨在研究白术多糖对断奶仔猪生长性能、饲料转化率、血清酶活性和生长相关激素的影响,探讨白术多糖对断奶仔猪促生长的内分泌机理。将60头8.5 kg左右的杜长大仔猪随机分为3组,Ⅰ组(白术多糖组)饲喂含0.5%白术多糖的日粮,Ⅱ组(抗生素组)饲喂含抗生素(15%金霉素100 mg/kg+4%黄霉素50 mg/kg)的日粮,Ⅲ组(对照组)饲喂基础日粮。试验期28 d,测定仔猪的生长性能、血清酶活性和与生长相关激素等指标。与对照组相比,白术多糖组仔猪的日增重、饲料转化率分别提高了20.72% (P<0.05)和5.81% (P<0.05);血清谷丙转氨酶(GPT)、谷草转氨酶(GOT)、碱性磷酸酶(ALP)的活性分别提高了12.11% (P>0.05)、7.21% (P>0.05)和14.50% (P<0.05);血清生长激素(GH)、类胰岛素生长因子-I(IGF-I)、三碘甲状腺原氨酸(T3)、四碘甲状腺原氨酸(T4)和环腺苷酸(cAMP)水平分别比对照组提高了30.77%(P<0.05)、52.02%(P<0.05)、47.60%(P<0.05)、36.70%(P<0.05)和21.15%(P<0.05)。白术多糖通过促进GH、IGF-I、T3、T4和cAMP的合成和分泌,影响仔猪的内分泌系统机能,实现对仔猪的促生长作用。

关键词: 白术多糖; 断奶仔猪; 生长性能; 血清酶; 生长激素; 类胰岛素样生长因子-I; 环腺苷酸 

Abstract: The objective of the present study is to evaluate the effect of a diet added polysaccharides of atractylodes macrocephala koidz (PAM) on the growth performance,the transformation rate of diet,the serum activities of 3 enzymes and the serum levels of 5 growth related hormones in weaned piglets. 60 crossbred piglets (Duroc×Landrace×Yorkshire,mean BW=8.5 kg) were randomly divided into 3 groups: a basal diet with no added PAM and antibiotic (control group),or 0.5% PAM,or antibiotic (15% chlortetracycline 100 mg/kg and 4% flavomycin 50 mg/kg).Comparing to the control group,the PAM group increased the average gain weight by 20.72% (P<0.05),transformation rate of diet by 5.81% (P<0.05),and the activities of glutamic-pyruvic transaminase (GPT),glutamic-oxalacetic transaminase (GOT) and alkaline phosphatase (ALP) by 12.11% (P>0.05),7.21% (P>0.05) and 14.50% (P<0.05),respectively. Also,PAM group increased the levels of growth hormone (GH),insulin-like growth factor-I (IGF-I),3,5,3′-triiodothyronine (T3),3,5,3′,5′-tetraiodothyronine (T4) and cyclic adenosine monophosphate (cAMP) in serum by 30.77% (P<0.05),52.02% (P<0.05),47.60% (P<0.05),36.70% (P<0.05) and 21.15% (P<0.05),respectively. The results indicated that PAM improved the growth performance of weaned piglets through the endocrinal system. Furthermore,it is possible that PAM altered the growth performance of weaned piglets by up-regulating the synthesis and secretion of GH,IGF-1,T3,T4 and cAMP. 

Key words: polysaccharides of atractylodes macrocephala koid (PAM); weaned piglet; growth performance; serum enzyme; growth hormone; insulin-like growth factor-I; cycle adenosine monophosphate

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