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논문 기본 정보

자료유형
학술저널
저자정보
Park, J.K. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Lee, Y.K. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Lee, P.Y. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Kim, S.W. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Kim, S.J. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Lee, H.G. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Han, J.H. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Chung, H.K. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Park, C.G. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Chung, Y.H. (Division of Animal Biotechnology, National Livestock Research Institute, RDA) Lee, C.H. (Department of Animal Scienc, Korea National Agricultural College, RDA) Lee, H.T. (Animal Resources Research Center, Konkuk University) Chang, W.K. (Division of Animal Biotechnology, National Livestock Research Institute, RDA)
저널정보
한국동물번식학회 한국가축번식학회지 한국가축번식학회지 제27권 제4호
발행연도
2003.1
수록면
325 - 331 (7page)

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This study was performed to test the cellulose digestibility using the transgenic pigs harboring cellulose degradation gene D (CelD). After delivered offsprings between normal pig and transgenic swine, DNA was isolated from piglets tail for PCR analysis. In first generation, five out of 65 piglets showed CelD positive. Unfortunately, four CelD-positive pigs were died during growing, but one survived pig was used as a transgenic founder to produce F$_1$ descendents. Among 3 F$_1$ transgenic pigs produced, one died and the remaining two pigs were used to test the fiber digest efficiency. An assorted feed was composite of 5% fiber with other ingredients. The feed of 3 kg per day was provided to the pigs including transgenic founders and littermate controls. The manure quantity was measured daily for a month, and all manures were dried for three days to analysis nitrogen, phosphate and fiber concentrations. The fiber digestion efficiencies of the transgenic F$_1$ pigs showed approximately 10% higher than those of control pigs. Fiber digestion was not greatly improved in transgenic pigs as it had been expected approximately 30%. Nitrogen concentration of transgenic pig's manure was slowly decreased compare to the control pigs. Because there were only two transgenic pigs tested, a large number of transgenic pigs may be necessary to obtain more reliable data. Breeding of animals to obtain sufficient transgenic pigs subjected for a further study is on progress. Taken together, this study demonstrated successful production of transgenic pigs with increase of cellulose digestibility in the porcine feed.

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