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草业学报 ›› 2012, Vol. 21 ›› Issue (6): 137-144.

• 研究论文 • 上一篇    下一篇

岷山红三叶异黄酮对去卵巢大鼠生长和免疫及抗氧化指标的影响

俞联平1,2,郝正里1,李发弟1,3*,孟祥君2,陈兴荣2,李新媛2   

  1. 1.甘肃农业大学草业生态系统教育部重点实验室 甘肃农业大学动物科学技术学院,甘肃 兰州 730070;
    2.甘肃省动物营养研究所,甘肃 兰州 730010;
    3.甘肃省饲料工程技术研究中心,甘肃 兰州 730070
  • 收稿日期:2011-04-22 出版日期:2012-06-25 发布日期:2012-12-20
  • 通讯作者: E-mail:lifd@gsau.edu.cn
  • 作者简介:俞联平(1963-),男,甘肃古浪人,研究员,在读博士。 E-mail:yulpl54@163.com
  • 基金资助:
    甘肃农业大学草业科学国家重点学科学术骨干科研项目和甘肃省动物营养研究所项目(GNMKJ-2009-01)资助。

Effect of isoflavone in red clover on the growth and immune functions, and in the antioxidant indices in ovariectomized rats

YU Lian-ping1,2, HAO Zheng-li1, LI Fa-di1,3, MENG Xiang-jun2, CHEN Xing-rong2, LI Xin-yuan2   

  1. 1.Key Laboratory of Grassland Ecosystem of Ministry of Education, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou 730070, China;
    2.Gansu Animal Nutrition Institute, Lanzhou 730010, China;
    3.Gansu Feed Engineering Technology Research Center, Lanzhou 730070, China
  • Received:2011-04-22 Online:2012-06-25 Published:2012-12-20

摘要: 为研究岷山红三叶异黄酮的促生长、免疫及抗氧化作用,选择80只SD(Sprague-Dawley)雌性大鼠,随机分为8组,每组10只,其中1~7组为去卵巢+红三叶异黄酮组, 分别按320,160,80,40,20,10和0 mg/(kg BW·d)的量灌胃红三叶异黄酮,第8组为假手术组,灌服等量生理盐水。结果表明,1)红三叶异黄酮对去卵巢雌性大鼠生长有一定的抑制作用,但不存在量效关系。2)低剂量的红三叶异黄酮具有提高大鼠T淋巴细胞转化率的作用,可以作为畜禽免疫增强剂,提高畜禽免疫力,以10 mg/(kg BW·d)的添加量比较适宜。3)岷山红三叶异黄酮具有明显的抗氧化作用,适量(>80 mg/kg BW·d)添加可降低血清CHO(total cho1esterol, 总胆固醇)、HDL(high density lipoprotein cholesterol,高密度脂蛋白胆固醇)和LDL(low density lipoprotein cholesterol,低密度脂蛋白胆固醇)浓度,提高血清SOD(superoxide dismutase, 超氧化物歧化酶)含量。4)岷山红三叶异黄酮具有弱的雌激素作用和较好的使用安全性。5)综合各指标,岷山红三叶异黄酮的适宜添加量为80 mg/(kg BW·d)。

Abstract: This study explored the influence of isoflavone in red clover (Trifolium pratense cv. Minshan) on animal growth, organism immunity and antioxidant functions. Eighty female Sprague-Dawley rats (Rattus norvegicus) at the 50-60 day old were randomly and evenly assigned to eight groups. The rats in groups 1 to 7 with the ovary excised were given red clover isoflavone daily at the rates of 320, 160, 80, 40, 20, 10 or 0 mg/(kg·d) by gavage. The rats in group 8 were given the normal saline as the sham operation group. 1) Red clover isoflavone inhibited the growth of the ovariectomized rats to some extent, but there was no dose-dependent effect. 2) The transformation rate of T lymphocytes increased in response to the isoflavone at the lower doses, indicating that red clover isoflavone at the lower doses could be used as the immunopotentiator to improve the immunity of animals. The appropriate amount to add was 10 mg/(kg·d). 3) Red clover isoflavone had an obvious antioxidative effect. The correct addition (>80 mg/kg·d) may reduce the concentrations of CHO, HDL and LDL, but increase SOD activity in the serum. In addition, the isoflavone had a weak estrogen-like effect. The appropriate level for addition of the isoflavone was 80 mg/(kg·d) for the ovariectomized rats.

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