China Animal Husbandry & Veterinary Medicine ›› 2007, Vol. 34 ›› Issue (2): 136-138.

• 动物生产 • Previous Articles     Next Articles

Study on the Effect of Superovulation in Qinchuan Cattle

LI Jinhui1,2，WANG Xinzhuang1,3，LIANG Jiakui1，NIU Hui1，WANG Yimin1，WANG Yerong1， WANG Mu1.2, GAO Shunqi3，WANG Tao3
   

  1. 1.Research Center of Beef Cattle Engineering and Technology, Zhengzhou 450003, China; 2. The College of Animal Science and Veterinary, Henan Agricultural University, Zhengzhou 450002, China; 3.Engineering and Technology Research Center of Milk Cow Embryo, Zhengzhou 450000,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-02-20 Published:2007-02-20

Abstract: 31 Qinchuan cattle were superovulated, 20 cattle were effective with the rate 64.5%, and 6.45 embryos were obtained on average. Among them, 4.20 embryos were useful. The embryos obtained from each cattle and useful embryos of the 300 mg group were significantly higher than groups that treated with FSH 260 mg and 340 mg per cattle (P<0.05). The obtained (8.56) and useful embryos (6.00) per cattle treated in spring and summer were significantly higher than that treated in autumn and winter (4.73, 2.73) (P<0.05). 10 cattle were superovulated repeatedly with the interval 70 days. There were not any significantly different between each superovulation (P<0.05).

Key words: qinchuan cattle; superovulation; embryo; FSH; none surgical collection

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