Diagnosis of gastrointestinal nematodes infection sheep in Qualioubia governorate by infective third stage larvae

A total of 300 fecal samples was obtained from living sheep in Qalyoubia Governorate, 128 harbored eggs of nematodes. The gastrointestinal nematodes had been differentiated through the infective third stage larvae. Details of the general and differential categories of each were given. The recovered species were Trichostrongylus axei, T. colubriformis, Ostertagia circumcincta, Hemonchus contortus, Bunostomum trigonocephalum and Oesophagostomum venulosum

role of wild rats as reservoir of some internal parasites in Qualioubia governorate

A total of one hundred and seventy two rats was trapped from different localities, Rattus norvegicus and Rattus r. alexandrinus. The overall infection rate was 54% [93 out 172 rats]. The infection rates of identified parasites were 28% cestodes [23.8% Hymenolepis diminuta and 7% Cysticercus fasciolaris], 8% Acanthocephala species [Moniliformis moniliformis] and 7% nematodes [Strongyloides species]. On the other hand, 40.7% were infected with protozoa [22.7% Cryptosporidium parvum, 20.3% C. muris, 8% Giardia lamblia and 12.8% Entamoeba cysts]

Evaluation of double diffusion test in the diagnosis of hydatidosis in livestock

The double diffusion test was used for detecting cross serological reactions between hydatid fluid antigens and sera of ruminants infested with different helminth parasites. The whole hydatid fluid antigen showed positive reactions with sera of sheep infested with Cysticercus tenuicollis, sera of cattle infested with Cysticercus bovis, sera of buffalos infested with Fasciola gigantica and Paramphistomum species and sera of cattle harbored Fasciola gigantica and Moniezia species. Sera of cattle infested with Paramphistomum species were negative. No cross reactions were detected when the purified antigen was used against the previously mentioned sera. The sensitivity of double diffusion test for diagnosis of hydatidosis using purified antigen was 96.6%