Most form pairs during the breeding season, but in some species, such as fur seals, the gray seal (Halichoerus grypus), and elephant seals, males (bulls) take possession of harems of cows and drive rival bulls away from their territory.
Look for the crooked tail. This is probably the best ways to tell if a cow has been bred: A cow or heifer will have a crooked tail or a tail that is held out in an odd angle than usual for 24 to 48 hours after being serviced by the bull. 1  4 Edit step.
Dairy farming has been part of agriculture for thousands of years. Dairy cows are bred specifically to produce large quantities of milk. Dairy cows are required to give birth to one calf per year to continue producing milk.They are usually artificially inseminated within three months of giving birth. These high milk producing cows are only productive for an average of 3 years, after which they are culled and the meat is normally used for beef.airy farming has been part of agriculture for thousands of years. Dairy cows are bred specifically to produce large quantities of milk. Dairy cows are required to give birth to one calf per year to continue producing milk.