On-Call / Vet

It seems that every other week I hear about how unsafe our food supply has become, that livestock producers are poisoning an unknowing public with all manner of substances and that antibiotic use in livestock should be banned because of bacterial resistance to certain antibiotics. Much of what I hear on news shows and read in magazines or newspapers seems often to be biased against prudent use of pharmaceuticals in livestock production. I have a few thoughts based on experience and research that I would like to discuss in more detail in this column.
There are innumerable articles detailing all sides of the problem of antibiotic resistance, food safety and livestock production in general.

Well, it has finally warmed up.  And with three to four days of warm weather I have already started seeing flies on many of the cattle I work on daily.  So what are your options to control flies and other parasites to minimize the damage done to your cattle’s production? Let’s take a look at several options for both external and internal parasites.

Many times clients ask about treatment for Fescue foot, but after several questions and upon physical exams, they are asking for a treatment for the wrong problem. There are major differences between Fescue toxicosis and foot rot.

Pinkeye is a costly disease to cattle owners and at this time of year, cattlemen seem to see the largest amount of affected animals.

In the last issue we discussed pinkeye as a major cause of disease in cattle during the summer months. Another problem that frequently presents itself in my chute during the summer is foot rot. I have seen numerous cases of foot rot in cattle this summer already. The disease is caused primarily by a bacterium called Fusobacterium necrophorum and is a significant cause of lameness in cattle – beef and dairy alike. Like pinkeye, mortality from the disease is generally absent but morbidity can get high with up to 25 percent of the herd affected in severe outbreaks. Foot rot can be a significant source of lost production. Cows that are lame from foot rot tend to lie around, eat less and produce less milk. Whether that milk is going into the bulk tank or into the calf, less milk means less money to the producer. Additionally, treatment costs and the occasional animal with unresolving lameness represent further economic loss due to the disease.

In the previous issue, we began a series on mastitis with a focus on contagious pathogens. In this issue, our focus will switch to the environmental pathogens and their identification, treatment and control.

It should come as no surprise that the farm population is aging. I have seen this phenomenon develop over the past 15 years I have been in the veterinary practice, and it shows little sign of change. There has also been a decrease in the number of large animal veterinarians in rural areas of not only Missouri, but throughout the nation. One way you and I can help slow these trends is to mentor young people that have an interest in agriculture and livestock production.

'Colic’ is a general term used to describe abdominal pain and is a clinical syndrome that is commonly recognized in horses. Colic can be caused by many different abnormalities occurring within the abdominal cavity of the horse. For horse owners it is advantageous to be familiar with the clinical signs, diagnosis and treatment options for colic as most horses will encounter this problem at some point in their lives.

The wet weather we have been dealing with for most of this year has brought with it several challenges for livestock producers throughout southwest Missouri. Wet and cold weather led to increased calf losses early this year, and wet fields have not allowed farmers to harvest hay crops that appear plentiful to the average person driving down the road. But I have observed another problem this year affecting horses and cattle. While I don’t have scientific proof or hard statistics to prove my theory, it is my opinion that I have had a number of cases where the problem seemed to stem from access to tall fescue, and I am concerned that fescue toxicosis could be a significant problem this year.

I recently made a trip to the Missouri Humane Society farm in Union, Mo., to attend a continuing education course on equine dentistry. Veterinarians are becoming more knowledgeable on the subject of dentistry in horses and are developing more advanced equipment and techniques for the proper care of the teeth and oral cavity of the horse.