Changes

==Description==

==Description==

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. Larvae ingested may develop to the L4 stage without interruption, however some larvae may become arrested at the EL3 stage. It is the mass, synchronous emergence of these hypobiotic larvae that leads to the clinical disease of larval cyathostomosis.  

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. Larvae ingested may develop to the L4 stage without interruption, leading to the characteristic 'pepper-pot' mucosal lesions seen with this type of disease. Larval emergence may occur throughout the summer and autumn, leading to the clinical signs associated with a 'wormy' horse  however some larvae may become arrested at the EL3 stage. It is the mass, synchronous emergence of these hypobiotic larvae that leads to the clinical disease of larval pr Type 2 cyathostomosis.