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논문 기본 정보

자료유형
학술저널
저자정보
Lee, Hyun-Gi (Animal Biotechnology Division, National Institute of Animal Science, RDA) Lee, Hwi-Cheul (Animal Biotechnology Division, National Institute of Animal Science, RDA) Chung, Hak-Jae (Hanwoo Experimental Station, National Institute of Animal Science, RDA) Hwang, In-Sul (Animal Biotechnology Division, National Institute of Animal Science, RDA) Choi, Myoung-Seob (Animal Biotechnology Division, National Institute of Animal Science, RDA) Byun, Sung-June (Animal Biotechnology Division, National Institute of Animal Science, RDA) Lee, Seung-Hoon (Animal Biotechnology Division, National Institute of Animal Science, RDA) Kim, Min-Ji (Animal Biotechnology Division, National Institute of Animal Science, RDA) Woo, Jae-Seok (Animal Biotechnology Division, National Institute of Animal Science, RDA) Chang, Won-Kyong (Animal Biotechnology Division, National Institute of Animal Science, RDA) Lee, Poong-Yeon (Animal Genetic Resources Station, National Institute of Animal Science, RDA) Lee, Hoon-Taek (Department of Animal Science, KonKuk University) Park, Jin-Ki (Animal Biotechnology Division, National Institute of Animal Science, RDA)
저널정보
한국동물번식학회 한국동물번식학회지 한국동물번식학회지 제32권 제2호
발행연도
2008.1
수록면
117 - 121 (5page)

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Our previous study showed that transgenic (TG) pigs harboring human EPO (hEPO) gene have been shown to have reproductive disorders, including low pregnancy rates, irregular estrus cycle and low little size. To investigate these reasons, we assessed estrus behavior (standing response) and plasma $17{\beta}$-estradiol ($E_2$) level, which partly reflect reproductive function, during the estrus cycles after synchronization and superovulation by hormone treatments. Then, we analysed blood composition and expression of hEPO gene in TG pigs. Pigs were injected with PG600. After 10 days, pigs were fed with Regumate porcine for 6 days. Blood samples were collected from jugular vein. Analysis of blood composition and $E_2$ level were measured by Hemavet 950 and $E_2$ ELISA kit, respectively. And, the expression of hEPO gene in reproductive organs was quantitated by real-time RT-PCR. The percentage of estrus behavior in TG was significantly decreased. Hematocrit (HCT), hemoglobin (Hb) concentration and red blood cell (RBC) number were significantly higher in TG than wild type (WT). On the other hand, high expression of hEPO gene in TG was observed in the mammary gland as well as in the uterus. Moreover, plasma $E_2$ level was significantly higher in TG than WT. These results suggest that nonspecific expression of hEPO gene in the other organs of TG may affect blood composition and plasma $E_2$ level, thereby causing reproductive disorders.

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