WBIA is not responsible for any inadvertent errors/or omissions to this catalog . Management of Yearling Bulls
Pre-breeding Management •
Provide access to dirt lots of 1 to 2 acres in size to allow for ample exercise prior to the breeding season. This is IMPERATIVE. Bulls that are physically fit will have a higher degree of sexual drive and will remain sound. • Allow bull to adjust to new environment for 60 days prior to breeding season. • To keep the bulls in good condition, a ration which contains 11-12% crude protein and 70% TDN from medium quality hay along with some grain supplementation, should be provided.
Breeding Season Management •
DO NOT OVERUSE A YOUNG BULL DURING HIS FIRST BREEDING SEASON. “Rule-of-thumb” for the proper bull to female ratio is 1 cow per month of age of the bull up to 3 years of age. For example, a 15-month old bull could be run with 15 females. A mature 3-year old bull (36 months of age) should be allotted a maximum 36 females.
Age of Bull
Number of Females Exposed
12-15 15-18 18-24
10-12 12-18 18-25 25-40
24 mo. & older
• The young bull is still growing, and therefore may need to be provided some extra feed during the breeding season. Monitor the bull’s body condition: if the bull is starting to lose condition, increase the amount of feed provided. Do not over condition. • Observe the bull closely during the breeding season to ensure the bull is servicing the females, ideally observing the cows once to twice daily. Record the initial service date. If the female was not bred, she should begin cycling 15 - 25 days from that initial service date. It is important to monitor bulls for normal breeding behavior and to catch an injury early to prevent missed breeding opportunities.
Post-Breeding Management •
Evaluate the bulls’ condition and, if needed, feed and manage them in such a way that they will be in moderate condition, a body condition score of 6 at the beginning of the next breeding season.
Bulls Are Guaranteed By The Breeder To Be Breeders If Well Managed. It is strongly encouraged that bulls be allowed ample exercise on dirt lots PRIOR to the beginning of breeding season. FOR SAFETY REASON ALL BULLS WILL ONLY BE LOADED UPON COMPLETION OF THE SALE!
DO NOT BLOCK THE BRIDGE OR IMPEDE TRAFFIC ON COLLEGE FARM ROAD . BUYERS ARE NOT ALLOWED TO RETRIEVE THEIR OWN BULLS FROM THE LOTS PRIOR TO OR DURING LOAD OUT.
WBIA has transitioned away from a power index and is now developing bulls that are balanced not only in growth and performance but also EPDs and structure. Our consultant has evaluated the bulls’ multiple times through the testing period for phenotype and structure. The board of directors and consultant have analyzed the bulls for performance, structure and marketability to make the final selection. WBIA Board takes great care to accurately report data gathered here. EPDs listed were current as of March 4, 2026.
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