Bloat in Cattle
In cattle, bloating is most often caused by the animal eating young and lush pasture, usually if the pasture has a high proportion of legumes (medicks, clover or lucerne (alfalfa)). Legumes contain foaming agents which trap air bubbles in the ruminant's rumen and prevent them from belching to relieve the pressure. This causes a build up of pressure in the rumen which manifests as an obvious swelling on the left side. Signs of bloat in cattle are distended left abdomen, stopping of grazing, lethargy, appearing distressed, difficulty in urinating or defecating, rapid breathing and staggering. In mild and moderate cases an antibloating agent will be administered orally or through a stomach tube and the ruminant should be exercised. In severe cases a wide bore trochar and cannula can be inserted into the rumen on the left flank to release the gas and liquid. In emergency cases of frothy bloat, this may not be enough and a 10–20 cm incision may need to be made in the animal’s side and the froth manually removed. Veterinary care is then needed to clean and stitch the wound and administer an antibiotic to the animal.
Read more about this topic: Gastric Dilatation Volvulus
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—Henry David Thoreau (1817–1862)