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한우의 신속한 증식을 위한 번식기술 개발에 관한 연구 II. 조기 임신 진단법 및 번식장애 분포에 관한 연구 KCI 등재

Studies on Development of Breeding Technique to Increase HanWoo(Bos taurus coreanae) : II. Early Pregnancy Diagnosis Incidence of Reproductive Disorders

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  • URLhttps://db.koreascholar.com/Article/Detail/47307
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한국동물생명공학회지 (구 한국수정란이식학회지) (Journal of Animal Reproduciton and Biotechnology)
한국동물생명공학회(구 한국수정란이식학회) (Journal of Animal Reproduction & Biotechnology)
초록

The aims of these study were to diagnose early pregnancy and reproductive disorders by using progesterone concentration and ultrasonography. The measurement of blood progesterone (P) concentration was conducted to diagnose pregnancy and to detect corpus luteum (CL) or evaluate disorder of CLs. As a result, the incidence rates of reproductive disorders were as follows : SH and EED (41.9%), inacitve ovaries (32.6%), follicullar cyst (9.3%), PCL (7.0%), endometritis (4.7%), pyometra (2.3%) and luteal cyst (2.3%). 61 Cows having Pconcentration 1.0 ng/ml(at the insemination) were increased to 1.0 ng/ml 6day after insemination. 50 cows among 61 cows were diagnosed pregnant. 8 cows among 13 HanWoos having Pconcentration 1.0 ng/ml at the insemination and 1.0 ng/mnl 6 day after insemination had non-ovulatory estrus and the others had Pconcentration 1.0 ng/ml at the insemination and 1.0 ng/ml 6 day after insemination, which was the error of estrus detection. All 13 cows were diagnosed non-pregnant. 47 cows diagnosed pregnant after insemination of Pconcentration 3.0 ng/ml were examined by ultrasonography at 30 day post-insemination. As a result, 41 cows were diagnosed pregnant (87.2%) but 14 cows having Pconcentration 3.0 ng/ml at 21 day after insemination was diagnosed to non-pregnancy. Calving intervals by surveying 100 cows were as follows 11~12 months (20%), 12~13 months (36%), 13~14 months (19%), 14 months (25%), respectively. In conclusion, hormone and ultrasonography help to detect reproductive disorders exactly and diagnose early pregnancy. This study suggest that diagnosis of early pregnancy and reproductive disorder by blood Pconcentration and ultrasonography improve reproduction management of HanWoo.

저자
  • 장구(서울대학교 수의과대학)
  • 손창호(전남대학교 수의과대학)
  • 이은송(강원대학교 수의과대학)
  • 류일선(농촌진흥청 축산기술연구소)
  • 이강남(전남대학교 수의과대학)
  • 이동원(전남대학교 수의과대학)
  • 오명환(현대 서산목장)
  • 오성종(농촌진흥청 축산기술연구소)
  • 정근기(영남대학교 자연자원대학)