Fig. 3From: The impact of hair coat color on longevity of Holstein cows in the tropics a Wilcoxon test for homogeneity of data for survival rate of cows by hair coat color in Farm A. Black cows had greater survival rate compared to white cows (P < 0.05). b Wilcoxon-test for homogeneity of data for survival rate of cows by hair coat color in Farm B. Black cows tend to have better survival rate than white cows (P < 0.06)Back to article page