Access to the Abomasum of Sheep via a Rumen Fistula for Follow-up Studies During Trichostrongylid Infections

摘要: A technique is described for the examination of abomasum adult sheep via a rumen fistula. The size fistula allowed manual exploration which was necessary to achieve an access abomasum. In four sheep, two them infected with Haemonchus contortus, fibreoptic endoscopy used investigate abomasal mucosa macroscopically as well histopathologically and ultrastructurally by means mucosal biopsy specimen. acidity contents measured directly introducing electrode into or indirectly in fluid obtained stomach catheter through values all ranged between pH2 4. did not influence plasma pepsinogen gastrin levels. possibility combining histological, serological coprological data follow-up studies on pathophysiology trichostrongylid infections individual seems be useful investigation primary secondary may contribute reduction number experimental animals such studies.