| chemical classification of cattle. 1. breed groups. | from approximately 1000 papers with data on protein polymorphism in some 216 breeds of cattle, 10 polymorphic proteins were compared in means and variances of gene frequencies (arcsin p 1/2) for ten well-recognized breed groups for 196 of the breeds. the polymorphic proteins were alpha-lactalbumin, beta-lactoglobulin, caseins (alpha s1, beta and chi), serum albumin, transferrin, haemoglobin, amylase i and carbonic anhydrase ii. the breed groups were north european, pied lowland, european red bra ... | 1980 | 6161570 |