Some studies on helminth parasites of buff backed heron (ardeola ibis ibis)‎ with special reference to its role in transmision of clinostomum complanatum in Beni-Suef governorate

الملخص EN

A number of 50 Areola ibis ibis birds were found harboring six nematodes species ; Tetramers sapecies, Microtteramere species, Synhimantus invariants, Synhimantus equispeculatus, Acarida species, Paracamallanus species, and five species of treaties ; Euclinostomum heterostomum, Nephrostomum ram sum, Apharyngostrigea ibis, Abatement graceless and Centro cestus armadas.

The most common infection by nematodes was (46 %) in which highest infection rate Synhimantus invariants recorded (30 %) while the treaded infection was (24 %) and Abatement graceless was the most prevalent (16 %).

Experimental infection of buff backed heron by encysted metacercaria (EMC) and existed metacercaria (ExMC) of Clinostomum complanatum from freshwater fish Tilapia Nilotic a, resulted in adult worms formed after 6 days.

Where the infection by EMC recorded higher worm burden (14-18 worm) and hatching percent (78 %) while the infection by ExMC gave lower worm burden (7-10 worm / bird ) and hatching (48 %).

In the present study, it is worthy to mention that buff backed heron act as final host model for Clinostomum complanatum and this will be helpful in further biological and immunological studies for this treated to decrease its economic losses in fish intermediate host.