The challenge is to identify the factors responsible for the problem. Only then can management changes be made to improve reproductive efficiency and herd profitability. The purpose of this fact sheet is to identify factors that must be considered as possible causes of low conception rates.
Discussion is limited to factors which can potentially lower conception rate on a herd-wide basis.
Additional causes of conception failure in individual cows are discussed in Fact Sheet IRM-23 on Repeat Breeders. In many herds the search for factors causing low conception rates begins in the calving area. These disorders slow the reproductive tract repair processes and can lower conception rates, especially if they do not receive timely and effective treatment. It is important to note that all the problem cows in these herds were treated by the veterinarian. In spite of treatment, performance was still lower than that in normal cows.