The effect of rainbow trout growth hormone gene on morphology, dressing percentage and condition factor in the common carp, Cvprinus carpio ,was studied in the four families. Length and weight were correlated for both genotypes. Transgenic families that grew faster than controls also had larger (P<0.05) morphometric ratios than controls. Head and body measurements were 4.5 - 8.5 % larger. Caudal changes were more dramatic, an increase of 15- 18% A negative correlation was observed between dressing percentage and morphometric ratios. The condition factor and dressing percentage for transgenic and control carp in all the families were not different (P>0.05).

N. Chatakondi, A. C Ramboux, A. Nicholas, M. Hayat, P. L Duncan, T. T Chen, D. A Powers, R. A Dunham

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 17. Genetics and breeding of dairy and beef cattle, swine and horses, , 481–484, 1994
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