기관회원 [로그인]
소속기관에서 받은 아이디, 비밀번호를 입력해 주세요.
개인회원 [로그인]

비회원 구매시 입력하신 핸드폰번호를 입력해 주세요.
본인 인증 후 구매내역을 확인하실 수 있습니다.

회원가입
서지반출
Relationship between Estrous Expression Rate, BCS and Transferable Embryos in Holstein Donor Cows
[STEP1]서지반출 형식 선택
파일형식
@
서지도구
SNS
기타
[STEP2]서지반출 정보 선택
  • 제목
  • URL
돌아가기
확인
취소
  • Relationship between Estrous Expression Rate, BCS and Transferable Embryos in Holstein Donor Cows
  • Relationship between Estrous Expression Rate, BCS and Transferable Embryos in Holstein Donor Cows
저자명
Son. Jun-Kyu,Jung. Yeon-Sub,Cho. Sang-Rae,Baek. Kwang-Soo,Yoon. Ho-Beak,Lim. Hyun-Joo,Kwon. Eung-Gi,Kim. Sang-Bum,Choe. Changyon
간행물명
韓國受精卵移植學會誌
권/호정보
2012년|27권 4호|pp.237-243 (7 pages)
발행정보
한국수정란이식학회
파일정보
정기간행물|ENG|
PDF텍스트
주제분야
기타
이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
서지반출

기타언어초록

This research was investigated the relationship between the number of the transferable embryos and estrus expression rate, BCS (Body Condition Score), which affect the nutritional state of the cow, in Holstein donor cows. CIDRs were inserted into the vaginas of twenty two head of Holstein cows, regardless of estrous cycle. Superovulation was induced using folliclar stimulating hormone (FSH). For artificial insemination, donor cows were injected with $PGF_{2{alpha}}$ and estrus was checked about 48 hours after the injection. Then they were treated with 4 straws of semen 3 times, with 12-hour intervals. Embryos were collected by a non-surgical method 7 days after the first artificial insemination. When BCS was $$leq_-$$2.5, the total number of collected ova was 7.3 + 1.9, which is significantly lower (p<0.05) than the numbers 15.4 + 2.8 and 15.4 + 2.1 that were obtained when BCSs were 2.75 and $$geq_-$$3.0, respectively. Whereas the numbers of transferable embryos were 5.2 + 1.4 when BCS was $$leq_-$$2.5, which was smaller than the numbers 6.0 + 2.1 and 8.5 + 1.8 that were obtained when BCSs were 2.75 and $$geq_-$$3.0, respectively; however, the differences were not significant. As for estrus induction rate, the cow groups whose BCSs were 2.75 and $$geq_-$$3.0 showed 100.0% and 95.0%, respectively. Whereas the cow group whose BCS was $$leq_-$$2.5 showed 57.1%, and the differences were significant (p< 0.05). As for estrous expression rate, the cow groups whose BCSs were $$leq_-$$2.5, 2.75 and $$geq_-$$3.0 showed 100.0%, 100.0% and 85.7%, respectively; however, the differences were not significant. According to the result of this research, it is considered that the total number of collected ova and the number of transferable embryos will be affected by the nutritional state before and after in vivo embryo production and superovulation treatment, and that although the mechanism is not clear, poor stockbreeding management and nutritional level would cause the decrease of ovum recovery rate and the number of transferable embryos in high-producing cows. On the other hand, diverse researches on the superovulation treatment method that is suitable for high-producing Holstein donor cows would contribute to preventing ovarian cyclicity disorder, as well as to the early multiplication of cows with superior genes by increasing the utilization value of donor cows.