Genetic resistance of fowl to subgroup C Roux sarcoma virus (RSV) is controlled by a pair of autosomal alleles, c‘ and cr of the tumour virus c (tvc) locus (P ayne and B ig s, 1970; M otta et al, 1973; Pant, 1973). We reported previously that black susceptible embryos (i+i+c* cs) were four fold less susceptible than the white susceptibles (/ I c’ c’) to subgroup C virus (Pa n i, 1974). This study reports additional information on the effect of the plumage colour genes, I and A on the genetic variation of pock response on the chorioallantoic membrane (CAM) of embryos to RSV.
Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 3, Madrid, Spain, 53–58, 1974
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