About Cows and Buffalo

In this month two cows gave birth to two calves(one each). One is one month old, other is 20 days old. They are very cute and active. Buffalo also gave birth to a calf 15 days ago. We are getting about a litre of milk from each cow, and 5 litres from buffalo. We are selling buffalo's milk and consuming the milk from cows. We are enjoying by seeing all these baby animals now.