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Abstract
SUMMARY
A total number of 133 Egyptian balady sheep of both sexes, their age ranged from one month to two years old and belonged to several localities in Sohag Governorate were used in this study.
Three samples were collected form each animal of the control and diseased cases. Faecal sample, for parasitic investigation and two blood samples (whole blood sample with anticoagulant and blood serum samples) for both haematological and biochemical studies.
Clinical examination of infested sheep revealed the following:
- Appetite varied according to degree of infestation, some sheep showed normal good appetite and other that are heavily infested with parasite showed slight inappetance with increased desire to drink water.
- Mucous membranes were rosy red in colour in healthy control animals and pale in colour in infested animals.
- Body condition was good to very good in control animal and varied from emaciation to very thin cases in infested sheep.
- Some infested sheep showed complete dullness and others are active.
Parasitological examination: The following parasites were detected in examination of faecal samples from infested animals: Ascaridae Spp., Trichostrongylus Spp., Oesophagostomum Spp., Strongylus Spp., Chabetria, Trichuris, Ostertagia Spp., Monezia and Coccidia Spp. with the following incidence 24.06%, 8.27%, 3.75%, 2.52%, 2.25%, 2.25%, 1.5%, 15.03% and 15.03% respectively.
Hematological findings:
Total erythrocyte counts, in sheep infested with nematodes were 8.85 2.41, 9.59 1.37 and 11.37 2.61 in heavy, moderate and mild infestation respectively. Sheep with mild, moderate and heavy infestation with nematodes exhibited lowered total erythrocytic count in comparison with apparently first healthy group.
Haemoglobin concentration: The value of haemoglobin content in sheep infested with nematodes and those infested with cestodes were lowered than the respective normal values and significantly decreased in heavily infested group as compared with moderate ones.
Packed cell volume values were decreased in all groups infested with Ascaris, Trichostrongylus, Oesophagostomum, Strongyloides, Trichuris, Chabertia, Ostertagia spp, Monezia and Coccidia spp.
Total and differential leucocytic counts:
- Total white blood cell count decreased in cases of mild, moderate and heavy infestation with nematodes as well as in group infested with protozoa, while insignificant changes were recorded in group infested with cestodes.
- All groups that infested with nematodes, cestodes and protozoa showed neutrophilia, eosinophilia and.monocytopenia.
Biochemical findings:
- Recorded results revealed marked decrease in serum iron concentration of the infested groups with special reference to those heavily infested with nematodes.
- Results of the present investigation revealed significant decreased in serum copper level in cases of mild, moderate and heavy infestation with nematodes, also in cases infested with Cestodes as well as protozoa.