한우 체내 수정란 이식 후 수태율에 미치는 요인
(주)코리아스칼라
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서지정보
ㆍ발행기관 : 한국수정란이식학회
ㆍ수록지정보 : Journal of Embryo Transfer / 23권 / 1호
ㆍ저자명 : 손귀동, 송상현, 정우재, 박충생, 이정규, 공일근
한국어 초록
발정 주기와 상관없이 CIDR를 삽입하는 날에 2.5 mg estradiol benzoate, 50 mg progesterone을 주사하였다. CIDR 삽입 후 4일 동안 FSH를 감량법으로 12시간 간격으로 주사하였으며, FSH 주사 5, 6회째에 를 투여했다. 1회째 주사 24시 간 후 CIDR를 제거하고 GnRH를 주사하였다. 공란 우들을 1번째 주사 후 60시간과 72시간에 수정을 시켰다. 인공수정 7일 후 회수된 수정란을 수정란 이식 때 pro
영어 초록
This study was performed to improve the pregnancy rates of recipients following transfer of bovine embryos produced in vivo. Superovulation response didn't showe significant differences between each season (4.18 in spring; 4.36 in summer; 5.50 in fall; 4.38 in winter). Pregnancy rate was significantly different (p<0.05) between fresh (43.4%) and frozen embryos (17.2%). In administration of hCG to recipients, the pregnancy rate of fresh embryos (45.7%) was slightly higher than that of control (35.3%), but the pregnancy rates of frozen embryos in control group (25.0%) was higher than that of hCG group (16.0%). When synchrony of recipient and embryo was -2, -1, 0 and 1, the pregnancy rates were 20.0, 45.0, 30.3 and 26.3%, respectively. The pregnancy rates of recipients synchronized by naturally or , CIDR/ and E/P/CIDR//E treatments were 35.3, 48.0, 29.0 and 40.0%, respectively. Gestation lengths and birth weights of female and male calf were 288 and 290.5 days, 28.3 and 30.0 kg, respectively. The results were showed that the superovulation response was not affected by seasons, and also pregnancy rate didn't increase by administration of hCG, synchrony of embryo and recipients, synchrony methods. Further study and concern should be focused on improving the embryo freezing and pregnancy rate for commercial embryo transfer.
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