Asian-Australasian Journal of Animal Sciences

  • 제15권3호
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  • Pages.410-415
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  • 2002
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  • 1011-2367(pISSN)
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  • 1976-5517(eISSN)
아세아태평양축산학회 (Asian Australasian Association of Animal Production Societies)
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Active Immunization against Adrenocorticotropic Hormone in Growing-Finishing Barrows: An Initial Trial and Evaluation

  • Lee, C.Y. (Department of Animal Science and Technology, Graduate School, Chinju National University) ;
  • Baik, K.H. (Department of Animal Science and Technology, Graduate School, Chinju National University) ;
  • Jeong, J.H. (Department of Animal Science and Technology, Graduate School, Chinju National University) ;
  • Lee, S.D. (Department of Animal Science and Technology, Graduate School, Chinju National University) ;
  • Park, J.K. (Department of Animal Science, Gyeongsang National University) ;
  • Song, Y.M. (Department of Animal Science and Technology, Graduate School, Chinju National University) ;
  • Kim, Y.S. (Department of Human Nutrition, Food and Animal Sciences, University of Hawaii at Manoa) ;
  • Sohn, S.H. (Department of Animal Science and Technology, Graduate School, Chinju National University)
  • 투고 : 2001.07.25
  • 심사 : 2001.11.05
  • 발행 : 2002.03.01
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초록

Adrenal glucocorticoids, secreted by the stimulus of adrenocorticotropic hormone (ACTH), are catabolic hormones in the pig. The present study was conducted to find whether active immunization against ACTH would suppress cortisol secretion accompanied by an increased growth rate in growing-finishing barrows. ACTH was conjugated to keyhole limpet hemocyanin or human histone using glutaraldehyde or 3-maleimidobenzoic acid N-hydroxysuccinimide, under a 2 (ACTH vs no hapten)${\times}$2 (carrier)${\times}$2 (crosslinker) factorial arrangement of treatments. Cross-bred barrows weighing approximately 25 kg were injected with an ACTHcarrier or carrier only conjugate every 4th wk and slaughtered at approximately 110 kg body weight. Antibodies against ACTH were detected in serum, as determined by $[^{125}I]$ACTH-binding activity, in most animals immunized against the ACTH conjugate, but not in carrier only-injected animals, except for the animals which had received the hapten conjugated to histone via glutaraldehyde. The $[^{125}I]$ACTH-binding activity of serum increased after the second booster injection, but overall ACTH antibody titer was very low. Main effect was not detected not only for the carrier and crosslinker but for the hapten in serum cortisol concentration, ADG, loin muscle area, backfat thickness and longissimus muscle composition including fat and protein. In addition, bound $[^{125}I]$ACTH percentage had no relation to cortisol concentration or to any of the above growth-related variables. Results suggest that ACTH or its conjugates used in the present study were not immunogenically potent enough to affect the glucocorticoid secretion and thus the growth of the immunized pigs.

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참고문헌

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