Seasonal prevalence of gastrointestinal nematode parasites of sheep in Northern region of Nile Delta, Egypt

Abstract

Over 1 year, from January to December 1999, a total of 173 slaughtered sheep at Al-Mahala abattoir were examined for presence of nematode parasites. Eighteen sheep (10.4%) were infected with eight different species of nematodes. The prevalence rates of detected nematode parasites were; Haemonchus contortus (3.5%), Haemonchus placei (1.7%), Trichuris ovis (5.8%), Parabronema skrjabini (2.9%), Ostertagia trifurcata (1.2%), Chabertia ovina (0.6%) and Strongyloides papillosus (0.6%), and Graphidiops species (2.9%). The seasonal prevalence of the infection with the nematode parasites was studied and the highest rate was during autumn (15.2%) followed by summer (11.1%) and winter (9.4%) while the lowest rate was during spring (5.6%).

Characterization of the complete mitochondrial genomes of two whipworms Trichuris ovis and Trichuris discolor (Nematoda: Trichuridae)

“…(Beer and Lean, 1973;Cutillas et al, 2007;Khalafalla et al, 2011;Hotez et al, 2012). These parasites are transmitted via a direct, fecal-oral route.…”

The comparative morphology of Marshallagia marshalli and Ostertagia occidentalis (Nematoda: Strongylida, Trichostrongylidae) by scanning electron microscopy

“…Two parasitic moults occur before the L5 emerges from the gland around 18 days after infection to become sexually mature on the mucosal surface (Taylor et al 2007). Prevalence of these nematodes has been reported ranging from 0.72% to 84.1% in domestic animals from various parts of the world (Anderson 2000;Tariq et al 2008;Khan et al 2010;Khalafalla et al 2010). In Iran, among different species of Ostertagiinae that can infect sheep, M. marshalli is currently the major cause of parasitic gastroenteritis in ruminant but O. occidentalis is less prevalent (Eslami et al 1979).…”

Epidemiology of Gastrointestinal Parasitism in Small Ruminants in Pudukkottai District, India

“…Among these G.I parasites, Haemonchus contortus is the most prevalent and important parasite (Khalafalla et al, 2011). The degree of infestation may be sub-clinical or clinical A prevalence study on the gastrointestinal (G.I) parasitism of sheep and goats was carried out during October 2016 to March 2017 in Pudukkottai district, Tamilnadu.…”