| Studies on the plasma progesterone concentrations for pregnancy diagnosis in Che-ju native mare |
|
Deuk-Jee Chang1, Ki-Chun Yang2, Jung-Kye Kim2, Byong-Kyu Kang3, Han-Sun Choi3, Chang-Ho Son3 |
1Che-ju Vocational Junior College
2College of Agriculture, Cheju National University
3College of Veterinary Medicine, Chonnam National University |
| 제주재래마(濟州在來馬)의 혈중(血中) progesterone농도측정(濃度測定)에 의한 임신진단(姙娠診斷)에 관한 연구(硏究) |
|
장덕지1, 양기천2, 김중계2, 강병규3, 최한선3, 손창호3 |
1제주전문대학
2제주대학교 농과대학
3전남대학교 수의과대학 |
|
|
| Abstract |
|
Plasma progesterone concentrations were measured from 97 Che-ju native mares throughout the estrous cycle, Day 20 to 23, 5 to7 months of pregnancy, and gestation period (<1 to 7 months) using the radioimmunoassay techniques for pregnancy diagnosis. Plasma progesterone concentrations during the estrous cycle were the lowest (<1.0ng/ml) at estrus, remained high from 9 to 18 days (3.7~7.6ng/ml) and drastically decreased thereafter to reach minimal concentrations at the next estrus. Plasma progesterone concentrations at Day 21 to 24 were a significantly different between in pregnant mares (>5.7ng/ml) and in non-pregnant mares (<1.0ng/ml). The accuracy of the pregnancy diagnosis based on plasma progesterone concentrations at Day 20 to 23 was 86.7% for positive and 100% for negative, whereas on 5 to 7 months was 66.7% for positive and 71.0% for negative, respectively. Plasma progesterone concentrations during the gestation period(1 to 7 months) increased after 1 month of pregnancy, with peak concentrations(>8.0ng/ml) occurring between 60 to 100 days of pregnancy, and decreased below 1.7ng/ml after 6 months of pregnancy. |
| Key Words:
progesterone, estrous cycle, pregnancy diagnosis, Che-ju native mare |
|
PDF Links
Full text via DOI
Download Citation
