While unpainted cows and cows with black stripes endured upward of 110 bites in 30 minutes, the black-and-white cows suffered fewer than 60 in the same period, researchers found.

Black and white, pretty as a picture Holsteins: Photographing dairy cows for breeding catalogs is a booming business in Carroll and Frederick counties. Three of the world’s estimated 50 ...

While unpainted cows and cows with black stripes endured upward of 110 bites in 30 minutes, the black-and-white cows suffered fewer than 60 in the same period, researchers found.