On-Call / Vet

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.

Knowing when to assist with calving

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.

Bovine respiratory disease (BRD) is arguably the most economically significant health concern for the beef cattle industry. Shipping Fever, respiratory disease complex and pneumonia are all common synonyms used to describe BRD. Given its significance, there is a wealth of information available regarding the condition. The purpose of this article will be to provide a general overview and a basic understanding of BRD and the diagnostic and treatment tools available to cattle producers as well as currently recommended prevention strategies.

Abomasal bloat, or abomasitis, is a condition seen in calves less than three weeks old. We have recently seen several cases at our clinic, and unfortunately, most cases are fatal without very rapid intervention. The good news is that good management and preventive measures can all but eliminate this disease.

Over the past several weeks I have had numerous questions regarding the safety of Johnson grass as a forage or for hay. The extremely, hot and dry summer left many pastures short and several producers feeding hay as we approach fall. Johnson grass is a plant that tends to grow and proliferate during periods of heat and drought when other grasses fail to grow. As a result many pastures have an abundance of Johnson grass this year in comparison to other forages and during periods when feedstuffs are in short supply, producers naturally consider grazing or haying the Johnson grass. However, under the right conditions Johnson grass can accumulate high levels of nitrate and/or prussic acid and become highly toxic to livestock.

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.

Internal parasitism is one of the most challenging of health concerns in small ruminants.

Urolithiasis is a common condition in goats and typically affects young wethers. It is characterized by small, crystallized stones (urinary calculi) forming in the urine which then settle out in the bladder and cause disease when they obstruct the outflow of the urethra and render the animal unable to urinate. This condition is of major significance due simply to the fact that it can make animals very sick very quickly and often results in death if not effectively treated soon enough.

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.