|
KMID : 1005220060210030217
|
|
Journal of Embryo Transfer
2006 Volume.21 No. 3 p.217 ~ p.223
|
|
|
Treatment of Reproductive Dysfunctions and Reproductive Monitoring Using Ultrasonography in Dairy Cow
|
|
Lim Won-Ho
Oh Ki-Seok
Hwang Sun-Shin
Kim Bang-Sil
Bae Chun-Sik
Kim Seong-Ho
Kim Jong-Taek
Park In-Chul
Park Sang-Guk
Son Chang-Ho
|
|
|
Abstract
|
|
|
|
This study was carried out principally to obtain the basic data for the improvement of the reproductive performance and production using plasma progesterone assay and ultrasonography in dairy cow. The results obtained from this studies were as follows. The results of reproductive examination in 85,983 cows were ovarian diseases 40,399 (47.0%), uterine diseases 11,912 (13.9%), pregnancy or pregnant failures 26,587 (30.9%), adhesion of reproductive tracts 172 (0.2%), freemartin 8 (0.01%), and others 6,905 (8.3%), respectively. The treatment status of reproductive dysfunction in 30,241 cows were silent heat or error of estrus detection 14,909 (49.3%), follicular cysts 3,750 (12.4%), luteal cysts 907 (3.0%), inactive ovaries 665 (2.2%), granulosa cell tumor of ovary 3 (0.01%) and endometritis 6,986 (23.1%), respectively. The indices of reproductive efficiency after the periodical examination of reproductive status were as follows; the mean intercalving inteual was reduced from 475 days at the first examination to 381 days at the last examination of reproductive status, the mean interval calving to conception was reduced from 186 to 98 days, the mean interval calving to first service was reduced from 106 to 66 days, the cows showing heat by 60 days postpartum were increased from 32 to 90%, the mean conception rate to first service was increased from 42 to 64%, and the mean service per conception was reduced from 2.6 to 1.8 times, respectively.
|
|
|
KEYWORD
|
|
|
dairy cow, progesterone, ultrasonography
|
|
|
FullTexts / Linksout information
|
|
|
|
|
Listed journal information
|
|
|
|