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Cyathostomins are also known as small strongyles, and are one of the most important gastro-intestinal parasites of the horse. Over 40 species and several genera have been identified. The small, thread-like worms inhabit the caecum and the large colon with their developmental stages confined to the mucosa of the large intestine. Unlike the large strongyles, they do not undergo any extra-intestinal migration during development.
Cyathostomins are also known as small strongyles, and are one of the most important gastro-intestinal parasites of the horse. Over 40 species and several genera have been identified. The small, thread-like worms inhabit the caecum and the large colon with their developmental stages confined to the mucosa of the large intestine. Unlike the large strongyles, they do not undergo any extra-intestinal migration during development.
Both an acute and chronic form of larval cyathostomosis occur in horses. The acute form occurs due to the re-emergence of 'encysted' (hypobiotic) thrid stage larvae from the intestinal wall, and horses are usually affected during late winter or early spring.
Both an acute and chronic form of larval cyathostomosis occur in horses. The acute form occurs due to the re-emergence of 'encysted' (hypobiotic) thrid stage larvae from the intestinal wall, and horses with this type of disease are usually affected during late winter or early spring.
The chronic form occurs when ingested larvae develop to the fourth stage without interruption, leading to inflammation and thickening of the intestinal mucosa. Larval emergence may occur throughout the summer and autumn, leading to the clinical signs associated with a 'wormy' horse. This type of cyathostomosis is more commonly seen in younger horses who have not developed full immunity.
The chronic form occurs when ingested third stage larvae develop to the fourth stage without interruption, leading to inflammation and thickening of the intestinal mucosa. Larval emergence may occur throughout the summer and autumn, leading to the clinical signs of associated with a 'wormy' horse. This type of cyathostomosis is more commonly seen in younger horses who have not developed full immunity.
==Signalment==
==Signalment==