中国畜牧兽医2011，Vol.38Issue(3)：24-27,4.
不同锌源和水平对奶山羊相关激素分泌的影响
Effects of Different Source and Level of Zinc on the Related Hormones in Dairy Goats
摘要
Abstract
In order to research the effect of different source and levels of zinc on the related hormone in dairy goats, 12 diary goats of 2.5 to 3 years old were elected and randomly divided into 2 groups averagely, which infused different source of zinc.One group infused with different level of ZnSO4, the others infused with different level Zn-AA, the concentration of different zinc source as follows:0 ,20, 40, 60 ,80,100 ,200 mg/kg. Each infusing period were lasted 7 d. In the later 3 days, blood samples were collected from jugular and made serum to detect the zinc level and the related hormones of GH, E2 ,PRL and IGF-Ⅰ. The results showed that the hormones had a strong relationship with the zinc source. The level of GH and E2 was increasing with the concentration of zinc. The level of PRL was decreased with the increasing of the zinc concentration. While the level of IGF- Ⅰ was decreased with the increasing of zinc concentration in the group of ZnSO4, in the group of Zn-AA, IGF- Ⅰ was decreased at lower concentration but increasing at the higher concentration. It was concluded that different source and level zinc had a promotion effect on the secretion of GH and E2, and had an inhibition effect on PRL;ZnSO4 have an inhibition effect on IGF- Ⅰ , Zn-AA inhibited IGF- Ⅰ in low concentration and increased at the high level.关键词
ZnSO4/Zn-AA/奶山羊/相关激素Key words
Zinc Sulfate/ Zinc Amino Acid/ diary goat/ related hormones分类
农业科技引用本文复制引用
贺翠婷,王林枫,杨改青,张震,高建伟,冯亚强..不同锌源和水平对奶山羊相关激素分泌的影响[J].中国畜牧兽医,2011,38(3):24-27,4.基金项目
河南农业大学博士科研启动基金(30300098). （30300098）
