Multiple options to consider when breeding heifers. One of your greatest assets should be your heifer population. Raising quality heifers starts with proper sire selection, good dry cow and late-gestation...

Welcome to A.I. breeding 101 - a virtual college class held here today! We have come a long way since the 1970s when fixed-time A.I. was first attempted in our industry. In those days, prostaglandin F2?...

Achieving excellent reproductive performance is a critical goal for any dairy enterprise because reproductive efficiency drives overall profitability. Although numerous factors affect reproductive performance,...

In 1989, a major breakthrough in sperm sexing was reported by USDA scientists in rabbits. Insemination of rabbit does with Y-chromosome-bearing sperm resulted in 81 percent males, whereas insemination...

When was the last time you or your A.I. technicians had an A.I. refresher course? A.I. breeding is not like riding a bicycle - once you master the skill of cycling you have no need of a refresher course....

What's the best timed A.I. program? There are so many synchronization programs that can be used on my dairy herd. My question for a future Artificial Breeding column is which synchronization program would...

Traditionally, bull fertility is difficult to evaluate in the laboratory, although many attempts have been made to assess differences among bulls. Part of this difficulty exists because sperm are exposed...

Bulls don't do it better. With today's poor farm milk prices, everyone is looking for ways to cut costs to survive. Often, that search leads one to believe that abandoning A.I. breeding might save money...

In the 1980s, a breakthrough in semen sexing technology was made by USDA researchers in the Lawrence Livermore Laboratory in California. The patents for this technology were licensed to a company named...