MOVEMENT OF STOMACH BOTS (GASTEROPHILUS INTESTINALIS GASTEROPHILUS PECORUM LARVAE) IN THE ORAL CAVITY OF DONKEYS (EQUUS ASINUS).

Document Type : Original Article

Authors

1 Parasitology and Animal Diseases Department, National Research Center, Dokki, Cairo, Egypt.

2 Parasitology Department, Faculty of Veterinary Medicine, Cairo University, Giza, Egypt.

3 Entomology Department, Faculty of Science, Cairo University, Giza, Egypt.

Abstract

Examinations were Carried out on oral cavities of 36 and 15 donkeys naturally infested with Gasterophillus intestinalis and G. pecorum, ctively. Developing immature larvae of these species show a specific pattern of movement within the oral cavity of donkeys. The first instars of G. intestinalis burrowed in the dorsal mucosa of the tongue and invaded the interdental spaces of the upper arcade teeth. Second-instar larvae also developed there and in the pharynx. First instars of G. pecorum burrowed in the mucous membrane of the hard palate, cheeks and tongue. They dispersed into the soft palate and root of the tongue, where 2nd instars developed. Second instars moved to the pharynx, where they remained until the molt to 3rd instar. Like G. intestinalis, the dispersing instars produce perpendicular air holes for breathing.

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