Abstract
Summary A 2-month-old colt was diagnosed as having white snakeroot poisoning. He had been nursing his dam and eating a mixed hay of alfalfa and grass. Although no evidence of white snakeroot plants were found on the premises or in the hay, the diagnosis was based on symptoms of the foal and the presence of tremetol in the mare's milk. The foal was weak and in moderate respiratory distress. Dysphagia became pronounced. The foal soon collapsed and was unable to rise. During recumbency the foal was tube fed four times daily with a milk replacer and a gruel composed of a pelleted ration soaked in a polyionic solution. Intramuscular injections of vitamins A, D, and vitamin E and selenium were given. Intravenous amino acid solution was given weekly. The foal was in lateral recumbency for 10 days. Muscular function slowly returned over the following 2 months. The foal first stood with help on day 18. The foal was discharged after 71 days of treatment. Four months later the foal was small for his age but apparently normal.
Published Version
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