Earticle

초록

영어

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 F₁ descendents. Among 3 F₁ 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 F₁ 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.

키워드

저자

• Park, J. K [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• Y. K. Lee [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• P. Y. Lee [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• S. W. Kim [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• S. J. Kim [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• H. G. Lee [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• J. H. Han [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• H. K. Chung [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]
• C. G. Park [ Division of Animal Biotechnology, National Livestock Research Institute, RDA ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  Reproductive & developmental biology

• 간기

  계간

• pISSN

  1738-2432

• eISSN

  2288-0151

• 수록기간

  1977~2018

• 십진분류

  KDC 527 DDC 636