Morphotaxonomic Characteristic and Occurrence of Nematode Heterakis pavonis from Jungle Babbler in Tropical Region, Sindh-Pakistan

Abstract

The Turdoides striata host birds were captured and dissected during, 2019-20 to find out intestinal nematode helminth worms from different localities of district Naushahro Feroze, Sindh. A total (n=54) hosts internal visceral organs were examined, (n=118) specimens were recovered from the mid-portion and terminal part of the large intestine belonging to the Genus: Heterakis Duj., The morphological characteristic in all features comprised wider buccal capsule than deep. Five well-defined lips in male but female with three lips, club-shaped esophagus with valvular apparatus, vulva found at the anterior region of the body and female specimens were larger and wider than male. The longitudinal chitinous rim and bulb were present without gubernaculum. Tail pointed posterior, spicules long and unequal in size. The postanal region with seven pairs of papillae, preanal region with two pairs of papillae, and the eggs was in elliptical position. The high intensity of nematode helminths was observed during June in summer when compared with months of winter, with the consequent difference (P<0.05) among prevalence of helminths in Jungle babbler. This research study suggested that it is a firm call for a systematic study of the helminth parasites which are continuously affecting the local birds of this Sahati, region.