On-Call / Vet

Recently there has been increased emphasis on controlling leptospirosis in cattle with special consideration for the serovar Leptospira Hardjo-bovis.

In a previous issue we discussed an emerging disease in Missouri cattle known as trichomoniasis or ‘trich’. This issue provides an excellent opportunity to bring producers up to date on recent changes in Missouri state regulations.

As we enter the New Year many of my horse clients are making plans for the spring. This is the time of year to start thinking about vaccinating, don’t wait. Remember vaccines do not provide immediate protection, some require four to six weeks for protective immunity. If you are planning on moving your horse out of state for any reason do not wait until the last minute for your EIA (Coggin’s) test.

Blackleg is a disease that most cattle producers are relatively familiar with, if for no other reason than the ‘blackleg’ vaccine is probably the most commonly administered vaccination by cattle producers. And this for good reason, because for those producers that may have elected to forgo vaccination and unfortunately experienced the disease firsthand as a result, blackleg can be truly unforgettable. The disease frequently affects the biggest, fastest growing calves and renders them acutely dead in the majority of cases.

The abomasum is the fourth compartment of the stomach in the cow. This compartment is most like the simple stomach of humans or the horse in that it is the only glandular portion of the stomach of cows secreting hydrochloric acid and enzymes. The abomasum must function normally for cows to maintain their health and production. Dysfunction of the abomasum, namely displacement, is one of the most common causes of a need for abdominal surgery in the bovine.

Over the past several months, I have examined several beef cows that presented with chronic weight loss and diarrhea. Based on clinical findings, I decided to test several for Johne’s disease, and found cows from four separate farms that tested positive for the disease.

This is the time of year many area farmers are calving. Usually this time of year is not as cold as it has been this year. The weather definitely presents difficulties we don’t have when we calve in later spring and fall.

Most horse owners I know have at least one "easy keeper". These horses seem to require very little in terms of nutrition to maintain their body condition. Often the battle is in keeping them from becoming obese and horse owners go to great lengths, even what seems like near starvation to prevent these "easy keepers" from getting fat. As with all species, unchecked obesity comes with great health risks and for horses, Equine Metabolic Syndrome (EMS) is a condition not too uncommon for the overweight horse.