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유전공학 생산 돼지 성장호르몬 ( rPST ) 투여에 관한 연구 3 . rPST 가 비육돈의 가소화 에너지 및 라이신 요구량에 미치는 영향
정일병(I . B . Chung),오명선(M . S . Ohh),김정봉(J . B . Kim),윤철희(C . H . Yun),정숙근(S . K . Cheong),한인규(I . K . Han) 한국축산학회 1993 한국축산학회지 Vol.35 No.4
Eighty-one Landrace barrows were used to investigate the effects of recombinant porcine somatotropin (rPST) administration on requirements of dietary digestible energy(DE) and lysine of finishing pigs. Pigs were ingected 10㎎ rPST per day for 23 days(50 to 90㎏) and allotted in a 3×3 factorial arrangement of treatments, nine pigsJtreatment, with three levels of DE(3.4, 3.6 or 3.8mcal/㎏) and lysine (0.8, 1.2 or 1.6%). Six pigs from each treatment were randomly selected and slaughtered to determine carcass mesurements. Though rPST was administered, increasing DE and lysine concentration of the diets improved daily gain and feed per 1㎏ gain, but had no effect on lean meat and backfat thickness. However the optimum DE and lysine level based on growth performance, DE and lysine intakes and feed cost per 1㎏ gain seemed to be 3.6 mcal DE/㎏ and 1.2? in the corn soybean meal diet when rPST was administered.