Remember: A maximum of 50 cows may be mated. Each bull can service a maximum of 25 cows. Selecting 50 cows will require at least 2 bulls but you may use up to 5 bulls. Be careful to enter cow and bull numbers correctly. Do not enter the same cow or bull ID more than once on the form. Requesting carcass data on 3 animals will reduce the number of calves by 3 for that bull.