Contents of This Issue
Click on each article title to read the entire article.
Over the years, the practice of feeding calves through an automatic feeding system has been explored. Even though the conventional way of feeding milk or milk replacer to calves individually 2 or 3 times daily has been proven to result in healthy and profitable calves, some farmers are considering ways to reduce time spent feeding calves.
We have learned a lot about reproductive management over the last 20 years. Although it seems like they have been around forever, the most commonly used synchronization protocols (Ovsynch, Presynch, and Resynch) were not developed until the late 1990s. We started using CIDRs in the early 2000s. Sexed semen and the first activity monitoring systems were commercialized only 12 years ago in 2005. Genomic data was added to sire summaries in 2007.
Mastitis is one of the more expensive infections on a dairy operation. The average case of mastitis cost farmers $325 this includes vet costs, treatment, labor, discarded milk, decreased milk production, culling, extended days open, and death. The difference between clinical and subclinical mastitis is that with clinical mastitis the cow shows signs of an infection. The following discussion will focus on determining the cause and incidence of clinical mastitis.
The dry period is essential to the success of that cow in her next lactation. Properly managing dry dairy cows is just as important as programs for lactating cows, and yet dry cows often seem to be neglected and forgotten. A critical time in the dry period is the last three weeks before calving, also known as the “close-up” period. During this time, the cow is preparing to start the next lactation. Without adequate management, cows can calve in and fade quickly and lose potential income for their owners.