How poisonous are azaleas, and how much must an average-sized horse consume to be affected?

Azaleas are generally only consumed by horses when other forage is lacking, such as in the winter months. The presence of toxins varies among species, so some azaleas may be of little risk. The principal toxin is a grayanotoxin, which acts by binding to cell membranes affecting sodium channels and causing prolonged depolarization of cells. The primary effects are on the heart, nervous system, and gastrointestinal tract and include anorexia, excessive salivation, colic, and frequent defecation. Severe cases may result …

What are symptoms of stifle problems?

When you state stifle problems, we assume that lameness is involved. Horses with stifle problems are going to be lame in the hind end. The lameness can be on one or both sides, depending on if one or both stifles are affected. Usually the stifle joint will be swollen and possibly painful but not always. If the problems have been going on for a period of time in one leg, the other leg may develop problems from supporting too much …