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Effect of CIDR on Estrus Synchronization and Artificial Insemination of Korean Native Goat  

Choe C. Y. (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Kang D. W. (Department of Physiology, College of Medicine and Institute of Health Science, Gyeongsang National University)
Cho S. R. (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Kim H. J. (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Choi S. H. (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Choi S. H. (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Kim Y. K (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Rho G. J. (College of Veterinary Medicine, Gyeongsang National University)
Choe S. Y. (College of Veterinary Medicine, Gyeongsang National University)
Son D. S. (Animal Genetic Resources Station, National Livestock Research Institute, RDA)
Publication Information
Journal of Embryo Transfer / v.20, no.3, 2005 , pp. 297-302 More about this Journal
Abstract
Artificial insemination (AI) technology has widely applied in domestic animals including cattle for production and preservation of valuable animals. However, AI in goat was poorly studied. We here compared two different estrus synchronization methods, CIDR (controlled intravaginal drug release)+$PGF_2a$ and CIDR+PMSG, in Korean native goats. After treatment of CIDR+$PGF_2a$ or CIDR+PMSG for estrus synchronization, AI was applied to 38 recipients. Of 18 recipients treated with CIDR+$PGF_2a$, 4 recipients produced offsprings. However, no pregnancy was obtained in 20 recipients treated with CIDR+PMSG. Especially, after treatment of CIDR+$PGF_2a$, AI with fresh or frozen sperm showed markedly higher parturition rates than that of CIDR+PMSG. From these results, we suggest that combination of CIDR and $PGF_2a$ could be used as good method for estrus synchronization in Korean native goats.
Keywords
artificial insemination; Korean native goat; estrus synchronization; frozen sperm;
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