Good? Personally I like to see complete pigmentation but I can’t definitively say why. Thère does seem to be more bulls been bred today with no pigmentation or only 1/2 of the scrotum pigmented but would like to hear others thoughts.
I have been told my whole life you got to have red nuts to produce pigment on the udder so they won't sunburn or whatever. We have used probably 90% bulls with red sacks, still no-very little pigment on udders after 40 years. I used a bull last year that had a white sack. I only had 1 heifer but I'm sure she will be fine. All the bulls out of him have red sacks I think.