546.A sacciform blind pouch occurring after attachment of the intestinal wall to an unabsorbed yolk sac, causing impaction.
547.. INVAGINATION. Involvement of anterior parts of the small intestine, the mesentery and the tops of the caecum into the ileum. Usually, it occurs with a strong intestinal peristalsis, often following ingestion of feed after a restrictive feeding regimen.
548.Rotation of the small intestine on the longitudinal axis of the mesentery, resulting in venous stasis and necrosis of the intestinal wall.
549.CROP IMPACTION. It is caused by hard, fibrous feed or litter, whose accumulation results in impaction.
550.CROP IMPACTION. The retained content into the crop sometimes causes putrefactive necrotic processes, affecting the crop wall and the covering skin.