June 8, 2021
Foot rot is an infectious disease of cattle, causing swelling and lameness in at least one foot. The associated lameness often leads to decreased appetite and overall performance. It is not uncommon for multiple animals in a herd to be affected.
Foot rot can occur in cattle of all ages, and cases are often seen in wet and humid conditions, but can also occur when it is hot and dry when cattle congregate together. Standing in pens or lots heavily contaminated with feces and urine softens the skin and provides high exposure to the causative bacteria. High temperatures and humidity will also cause the skin to chap and crack, leaving it susceptible to bacterial invasion.
Fusobacterium necrophorum is the bacterium most often isolated from infected feet. This organism is present on healthy skin, but it needs injury or wet skin to enter the deeper tissue. F. necrophorum appears to act cooperatively with other bacteria to cause disease. Moisture, nutrient deficiency, injury or disease can result in compromised skin or hoof wall integrity, increasing the likelihood of the bacteria invading the skin.
Diagnosis of foot rot is typically made following thorough cleaning and examination of the foot particularly the space between the digits following sudden lameness. Fever may also be noted. If treatment is delayed, deeper structures of the foot may become affected, leading to a chronic condition and decreased chance of recovery.
Once foot rot has been confirmed, treatment should be administered. Antibiotics and pain medications along with addressing housing and environmental conditions should be considered. A vaccine does exist, but producers should consult with their veterinarian to see if it is a good option. As with most infectious diseases, affected cattle should be isolated.
Notable improvement should be seen within three to four days following treatment. If the animal is not responding during this period of time, it should be evaluated by a veterinarian. “Super foot rot” has been seen in certain areas of the country. It is more aggressive and is not as responsive to standard treatment.
Additionally, there are multiple other conditions that cause cattle lameness. Producers should consult with their veterinarian on diagnostic and treatment options particularly for lameness that does not resolve in the time expected. Approximately 20 percent of all diagnosed lameness in cattle is actually foot rot.
Source: Oklahoma State University, which is solely responsible for the information provided and is wholly owned by the source. Informa Business Media and all its subsidiaries are not responsible for any of the content contained in this information asset.
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