›› 2016, Vol. 43 ›› Issue (7): 1898-1903.doi: 10.16431/j.cnki.1671-7236.2016.07.036

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Investigation on the Distribution and Analysis on Formation Cause of Cystic Ovarian Disease in Dairy Cows

XU Xiao-ling1, XIAO Yin-xia1,2, BAI Jia-hua1, FENG Tao1, XIAO Lin-li1, SONG Yu-qing1, LIU Yan1   

  1. 1. Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China;
    2. College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
  • Received:2015-12-16 Online:2016-07-20 Published:2016-07-22

Abstract:

In order to explore the incidence,pathogenic factors and the formation mechanism of cystic ovarian disease (COD) in Beijing scale dairy farm,we used the rectal examination and ultrasound diagnosis,combined with the dairy parity,calving season and serum biochemical indices and hormone levels to investigate the distribution,influencing factors and formation cause of cow ovarian cysts.The results showed that the incidence of cystic ovarian disease (COD) was 10.73% in the testing dairy herds and the incidence of COD was associated with the parities.The incidence rate of ovarian cyst in the cows calving in the summer (51.06%) was higher than those calving in the spring (8.51%) and winter (17.02%).Insulin,IGF-1 and E2 were closely related with the formation of the cow ovarian cyst.The average concentrations of serum insulin and IGF-1 in cows with ovarian cysts were significantly lower than those of normal cows(P < 0.05),but the average concentration of serum E2 was significantly higher than that of normal cows(P < 0.05).This study provided reliable basis for the prevention and treatment of cow ovarian cyst.

Key words: dairy cows; cystic ovarian disease; ultrasonic diagnosis; formative mechanism

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