Breeding Season
Take a Breeding Inventory
List all cows and heifers exposed through either natural service
or artifi cial insemination (AI). Record all AI information, including
identifi cation and breed of the bull(s), tag number of the cow, and date of insemination. For natural service, record bull identifi cation
and breed, identifi cation of the cows exposed to that bull, and the
dates when the bulls were turned out and removed. Th is infor-
mation is extremely important in determining the reproductive
performance of the herd such as pregnancy percentage, pregnancy
loss percentage, calving percentage, calf death loss percentage and
weaning percentage (calving and weaning percentages are based on
the number of females exposed to the bull), and calving distribu-
tion as well as important production performance measures such
as pounds weaned per exposed female.