全北地方 乳牛의 繁殖障害에 대한 實態調査(Ⅱ) = A Survey on Reproductive Disorders in milk Cow in Jeonbug District(Ⅱ)

다국어 초록 (Multilingual Abstract)

Three hundreds and seventy eight heads of milk cow from 83 dairy farms were examined in order to investigated the status of reproductive disorders. The results are as follows :
1. Thirty three heads of milk cow(8.73%) were reported as the status of reproductive disorders by the owner but only 13 heads (3.46%)were identified as the result of examination actually.
2. Classification of 13 cows of reproductive disorders is as follow :Ovarian cyst 23.08%, Persistant corpus luteum 7.69%, Ovarian atrophy 7.69%, Endometritis 15.38%, Silent heat 7.69%, Repeat breeders 15.38%, Follicular hypoplasia 23.08%,
3. Three hundreds seventy eight heads of milk cows were bred in 83 dairy farms and average number of cow per farm were 4.6 heads and their owner bred cows from 1 head to 29 heads in one farm.