Читать книгу Farm Animal Medicine and Surgery - Graham R Duncanson - Страница 170

There are many theories on the aetiology of this condition of interstitial pneumonia. The theory with the most credence is that of a toxicosis resulting from the ingestion of large quantities of L-tryptophan in lush autumn grass. The disease occurs only in adults and the main sign is respiratory distress, with the rectal temperature remaining normal. It is a disease of beef suckler cows, and the affected animals tend to be separate from the rest, and are quieter than normal. Animals may be found dead or die following exercise. Care should be used in rounding up animals for treatment, which is far from evidenced based. Apart from more normal therapies, e.g. antibiotics, NSAIDs, steroids, etc., atropine and methylene blue have been advocated. In reality, the advice must be to stick to antibiotics and NSAIDs. The prognosis is guarded.