The only bell Coloradans use is for calling in cows.

She was four, and had more interest in cows.

It can't change the number of positive tests for mad cow disease in German cows.

The studies on which these changes were based were not performed in cows.

Cattle, in particular cows, were used extensively for all types of agricultural work.

But he still enjoyed wheeling and dealing in cows or whatever came to hand.

Mad cow disease has not been found in cows under 30 months.

Suppose a scientist is trying to find out what will improve milk yield in cows.

In horses and cows, poor quality hay can cause vitamin deficiencies.

Fertility rates in cows decline around 45-50 years of age.