Popis: |
Summary The acid-insoluble melanin of 141 samples of hair from different-aged cattle, taken at different seasons, gave significantly different mean values when the hair was grouped according to visual color and/or genotype, i.e., white, tan, red, heterozygous black, and other black. Three groups of heterozygous black cows of different breed composition gave statistically indistinguishable mean values. The method used distinguished one-gene differences, whether or not the hair from different samples was of the same apparent color. |