It is possible for farmers to guarantee high economic returns by adding to their stock through artificial insemination. However, due care must be taken. First, the farmer requires to keep a record of when he expects the animal to come on heat. For most animals, this is a range of 18 to 24 days for cows and 19 to 20 days for heifers from the hour the standing heat started. It is advisable to start tracking the animal the day before this expected day to allow for any variation.
The farmer should track the animal’s behaviour to catch the time the animal first shows heat signs and noting this down. Then she should continue tracking the animal to note the time it starts allowing other animals to mount (it stands willingly to be mounted). This is called standing heat.