Identifying cows in heat is the first basic step in a good breeding program. While activity monitors can be quite helpful in this task, many herds find success when this new technology is combined with a timed-A.I. program.

Heat detection is often cited as the most costly component and, undoubtedly, the major limiting factor to the success of A.I. programs on many dairy farms. Incorrect detection of estrus is related to loss of income due to extended calving intervals, milk loss, increased veterinary cost, increased heifer-rearing cost and slowed genetic progress. To achieve excellent heat detection, many factors have to be taken into account.

Reproductive performance of a dairy herd is a function of certain management policies and how well these are implemented in daily herd management. It has long been known that there is an important economic advantage to be gained by efficient reproduction in dairy herds.

Ensuring cows are bred soon after the voluntary waiting period and subsequent open cows rebred in a timely manner is critical to the profitability of a dairy operation. Heat detection is one of the key components in the management of dairy herds. A delay in breeding either at first or repeat services will increase the number of days open and extend calving intervals. The cost of poor heat detection adds up with a greater risk of culling and reduced milk production and is the real driver of higher replacement costs, all affecting your profitability.