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논문 기본 정보

자료유형
학술저널
저자정보
Cho, Sang-Rae (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Kumar, Kuldeep (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Yeon, Seong-Heum (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Lee, Sung-Hwan (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Kim, Ui-Hyung (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Chung, Ki-Yong (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Kim, Hyeon-Shup (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Lee, Myeung Sik (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Park, Chang-Seok (Hanwoo Experiment Station, National Institute of Animal Science, RDA) Yang, Byoung-Chul (Hanwoo Experiment Station, National Institute of Animal Science, RDA)
저널정보
한국동물번식학회 한국수정란이식학회지 한국수정란이식학회지 제29권 제4호
발행연도
2014.1
수록면
321 - 325 (5page)

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The present study was performed on farm animals to test the effectiveness of progesterone-releasing intravaginal device (Cue-Mate$^{(R)}$ 1.56 g) and injection of prostaglandin $F_{2{\alpha}}$ ($PGF_{2{\alpha}}$) for synchronization estrus in Hanwoo cattle. The cattle were at random stage of the estrus cycle. The cows were artificially inseminated at day 7 after Cue-Mate withdrawal, using commercial semen from Korean native bulls. There was a season effect on the estrus synchronization rate. It was higher in spring (94.3%) followed by winter (93.3%), autumn (90.4%) and summer (67.2%). In summary, The results of this study revealed that season has influences on estrus behavior of cattle with no significant effect on pregnancy rate. In summary, we suggest summer reproductive management to alleviate the effects of heat stress. It should be based on intensive cooling combined with hormonal treatment. Given that different subgroups of cows benefit differently from the treatments, selective hormonal administration should be considered.

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