A.I. & Breeding

When we look at reproduction on today’s dairy farms, we find more and more of them performing at a higher level than ever before. I can remember when we first started using pregnancy rate (PR) as the main measure for overall reproductive performance on dairy farms.

Since the introduction of Ovsynch more than two decades ago, dairy cattle estrous synchronization programs have been revamped, tweaked and refined in the quest to boost dairy cattle fertility and optimize reproductive management programs.

During synchronization protocols, there are a variety of products which are used to manipulate the estrous cycle. Synchronization protocols are not “band-aids” and should not be used to overcome mismanagement. To achieve desired results, cows should be healthy, ready to breed and in appropriate body condition.

Interest in crossbreeding is at an all-time high among commercial dairy producers internationally. Generally speaking, however, circumstances have changed regarding the historical superiority of pure Holsteins compared to crossbreds for profitability.

In vitro fertilization (IVF) on commercial dairies has steadily increased over the past few years. While the technology was originally limited to seedstock herds due to the higher cost per pregnancy, recent advances have made it more affordable.

There are so many factors that affect how efficiently you can get cows pregnant. Cow comfort. Cow cooling. Nutrition. Herd health. Genetics. Dry cow, transition and fresh cow management. And the list goes on.