On-Call / Vet

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.

Spring is the traditional time of year for breeding on most horse ranches. Horses are long-day breeders meaning that natural reproductive activity peaks during the longer days of the year. Generally, from mid-spring through the summer mares regularly cycle every 21 days.

Over the past few weeks our clinic has seen a couple of cases of classic anaplasmosis. Anaplasmosis is a clinical condition primarily recognized in cattle caused by the organism anaplasma marginale. This organism acts as a parasite to the red blood cell of the animal resulting in destruction of circulating red blood cells and rapid onset of severe anemia. This condition can produce acute death in cattle and is a complex disease in regards to effective treatment and prevention strategies.

The news has been full of information regarding influenza virus in recent months whether discussing the shortage of flu vaccines available for people, the spread of H1N1 or the more recent discussion of canine influenza. In this article, we are diverting a bit from livestock medicine to more of a companion animal topic, but I suspect that this topic may be of interest to most of our readers. In response to the recent media coverage I have begun to get questions regarding canine influenza, the signs of infection and need for vaccination.

Show season is upon us again. Remember show animals are exposed to more diseases as they are co-mingled with others. Vaccinations of these show animals are a must. Consult your veterinarian as to which vaccines are recommended.

In this day and age significant concern has developed over the use of pharmaceuticals in animals intended for human consumption. Amongst consumers, there are many varying opinions regarding the use of drugs and chemicals in food animals ranging from those that prefer organically produced products to those that give little concern over the matter.

One of the most common diseases among cattle during the summer months is pinkeye or ‘bovine infectious keratitis’. Many producers battle this disease every year even when preventative measures are taken. Thankfully, mortality with this disease is generally low or absent, however, morbidity may be as high as 80 percent. Economic losses are generally realized in treatment costs, reduced gains/milk production and reduced sale prices for animals with blindness or chronic lesions of the eye.

With the weather cooling as I write this article, I have seen a noticeable increase in scheduling for calf processing.  So I thought this might be a good time to discuss pre-conditioning programs and what I believe is their value to the cow-calf producer.

Once again this year we are seeing a rise in the number of cases of rabies in our state. This year according to the Missouri Department of Health, the state has had 23 cases compared to 17 cases at this same time last year. Currently, four counties are on alert those counties are Bollinger, Howell, Oregon and Wayne. Alerts are issued when the disease has been reported in domestic animals. The majority of cases this year has been in skunks, with 15 positive. The remainder of these cases have been in domestic animals including horses, dogs and cats.

Recently I have seen a few cases of “Blackleg” in the area. In spite of the familiarity of this disease to most cattle producers, I continue to see cases every year.