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Original Article

A study on the correlation between vaginal conductivity and estrus in Hanwoo (Bos taurus coreanae ) cows

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  • 발행기관
    한국동물생명공학회(구 한국동물번식학회) 바로가기
  • 간행물
    Journal of Animal Reproduction and Biotechnology 바로가기
  • 통권
    Volume. 38 No. 4 (2023.12)바로가기
  • 페이지
    pp.263-267
  • 저자
    Junkoo Yi, Jinyeon Park, Jaejung Ha, Daejung Yu, Woo-Sung Kwon, Daehyun Kim
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A440672

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초록

영어
Background: Estrus in cows can be detected through vaginal electrical resistance or conductivity. However, there are no studies measuring vaginal electrical resistance in Hanwoo cows. This study aims to measure the vaginal electrical resistance value in Hanwoo cows and compare it with estrus and ovulation. Methods: Vaginal electrical resistance values of 73 Hanwoo cows were measured before and after estrus at the Gyeongsangbuk-do Livestock Research Institute. Measurements were taken on days -6, -3, -2, -1, 0, 1, 2, 3, and 6 of artificial insemination. Large follicles and ovulation were confirmed using transvaginal ultrasonography. Results: The vaginal electrical resistance averaged 225.6 ± 6.3 Ω days before the artificial insemination date, decreasing until the day of artificial insemination. The average vaginal electrical resistance was 163.7 ± 4.6 Ω on the date of artificial insemination, and 188.8 ± 4.3 Ω one day after artificial insemination, when large follicles were observed. In addition, on the 6th day after artificial insemination, the vaginal electrical resistance averaged 231.4 ± 5.5, which was similar to the 6th day before artificial insemination (222.5 ± 6.3). Transvaginal ultrasonography showed that most of the cows ovulated one day after artificial insemination. Conclusions: The accuracy of estrus is high if the vaginal electrical resistance is measured for cows with confirmed estrus, making is a potentially useful for determining the timing of artificial insemination.

목차

ABSTRACT
INTRODUCTION
MATERIALS AND METHODS
Animal management
Estrus synchronization
Vaginal electrical resistance
Ovulation test
Statistical analysis
RESULTS
DISCUSSION
CONCLUSION
SUPPLEMENTARY MATERIALS
REFERENCES

키워드

estrus Hanwoo ovulation vaginal conductivity vaginal electrical resistance

저자

  • Junkoo Yi [ School of Animal Life Convergence Science, Hankyong National University, Ansung 17579, Korea ]
  • Jinyeon Park [ Gyeongsangbuk-Do Livestock Research Institute, Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea ]
  • Jaejung Ha [ Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea ]
  • Daejung Yu [ Chonnam Agricultural Research & Extension Services Livestock Institute, Gangjin 59213, Korea ]
  • Woo-Sung Kwon [ Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea ] Corresponding Author
  • Daehyun Kim [ Department of Animal Science, Chonnam National University, Gwangju 61186, Korea ] Corresponding Author

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국동물생명공학회(구 한국동물번식학회) [The Korean Society of Animal Reproduction and Biotechnology]
  • 설립연도
    1976
  • 분야
    농수해양>축산학
  • 소개
    동물번식생리학, 동물생명공학, 수의학, 인공수정 및 수정란이식을 이용한 동물개량에 관한 이론과 기술의 발전을 통해 학계, 연구계, 산업계 및 양축가 상호간의 협력을 도모함으로써 동물과학발전 및 사회일반의 이익에 기여 한다는 목적을 위해 노력해 나가겠습니다.

간행물

  • 간행물명
    Journal of Animal Reproduction and Biotechnology
  • 간기
    계간
  • pISSN
    2671-4639
  • eISSN
    2671-4663
  • 수록기간
    2019~2025
  • 십진분류
    KDC 527 DDC 636

이 권호 내 다른 논문 / Journal of Animal Reproduction and Biotechnology Volume. 38 No. 4

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