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Whole-body amino acid pattern of F4 human growth hormone gene-transgenic red common carp (Cyprinus carpio) fed diets with different protein levels
Fu, C.; Cui, Y.; Hung, S.S.O.; Zhu, Z. (2000). Whole-body amino acid pattern of F4 human growth hormone gene-transgenic red common carp (Cyprinus carpio) fed diets with different protein levels. Aquaculture 189: 287-292
In: Aquaculture. Elsevier: Amsterdam; London; New York; Oxford; Tokyo. ISSN 0044-8486, more
Peer reviewed article  

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Keyword
    Marine

Authors  Top 
  • Fu, C.
  • Cui, Y.
  • Hung, S.S.O.
  • Zhu, Z.

Abstract
    F4 generation of human growth hormone (hGH) gene-transgenic red common carp, and the non-transgenic controls were fed for 8 weeks on purified diets with 20%, 30% or 40% protein. Analysis of whole-body amino acids showed that the proportions of lysine, leucine, phenylalanine, valine and alanine, as percentages of body protein, increased significantly, while those of arginine, glutamic acid and tyrosine decreased, with increases in dietary protein level in at least one strain of fish. Proportions of the other amino acids were unaffected by the diets. The proportions of lysine and arginine were significantly higher, while those of leucine and alanine were lower in the transgenics than in the controls in at least one diet group. Proportions of the other amino acids were unaffected by strain. The results suggest that the whole-body amino acid profile of transgenic carp, when expressed as proportions of body protein, was in general, similar to that of the non-transgenic controls.

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