Question

cow milk is yellow but buffalo milk is white why

Answer 1

cow milk is also white...................it is yellow when it gives birth 

Answer 2

Buffalo milk has richer vitamin A content that the regular cow milk,and buffalo milk also contains more fat substances, that's why it is creamy white in colour rather than the pale yellow colour.

But on the other hand;

Cow is milk is also white in general circumstances but after the pregnancy periods the cow milk is yellow in colour because it contains more nutrition supplements for the baby cows.