BODY FDRM AND SUDY CULOUR IN HYBRID5 OF CYPRI NU5 CARPIO

Body colour and inheritance in Cypriarcs carpio were studied witlxaxis on somatpe.The body colour of thbride,Wuyuanesis withgolden old stout body, C. curprekiag with grey colour and elongate body,Ilaspite of orthogonal or reciprocal the offspring was grey in colour so that the golden colour of the carp seems to be recessive to grey colour. The body colour of the second generation from the P', internal recipocal cross differentiation appeared. The ratio of grey to golden colours 15:1. To backcrass hyhxids of F'I and recessive parents, the ratio was 3:I. So, we consider that body ca- Iaur is controlled by two of genetic factors and it is non--sex-linkage inheritance. Somatotype of hybrids was between two parents and was slightly similar to mother, the orthogonal was different from reciprocal cross. form ingenerar dons present extensive varieties (long-type, short-type and intermediates-type, etc. therefore, it is considered that heredity of somatvtype was a complex multigenic effect. Body form of the backcross hybrids inclines to their backcross's parents. The backcross hybrirds of 'x and crroar. Wuyuanensis were different Oery much from the baekcross bride ofand ccap yurwakiarag. Body Form and body weight has close relation, and it could be calculated. In offspring of full--sib, coefficient of correlation between body length and body wei t(:)was and that of body height (y) and body w eight was togeneration groups‘different somato pe different growth speed reveal and the coefficient of correlation was also different. The offspring with longer body grew fas-. test and the body reaches to the biggest. The coefficient of correlation hetiveen body length and body weight was =0. 90 and that of body Night and body w eight wasx.93.This article deals mainly with the selection of body form.