The biggest factor in calf performance is the milk yield of the dam.

This particularly related to the influence of men and feeds on milk yields.

The average milk yield is 5,000kg at 4.5 per cent butterfat.

Average milk yields are about 4,600kg at 6 per cent butterfat.

Average milk yields are about 5,250kg at 4.44 per cent butterfat.

Average milk yields are about 6,700kg at 4.06 per cent butterfat.

There are reports of individual animals with milk yield reaching 900 litres.

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

Cow, goats etc. are of local variety and the average milk yield is very less.

It can also cause a reduced milk yield, thus making the pups cry, creating yet more stress.