Descriptive epidemiology of insects infesting domestic sheep (Ovis aries) of district Toba Tek Singh, Punjab, Pakistan
2013
Sajid, M.S. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Iqbal, A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Khan, M.N. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Iqbal, Z. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Siddique, F. (University of Agriculture, Faisalabad (Pakistan). Inst. of Microbiology)
During a cross-sectional prospective epidemiological survey, a total of 2412 sheep were screened for the prevalence of insects. Out of which, 333 (13.80%) were harbored for insects including lice (36.57%), fleas (3.23%) and flies (1.62%). Among the identified species of lice, Haematopinus spp. (44.14%) was predominant followed in order by Damalinia ovis (26.42%) and Linognathus spp. (17.71%). The flea Ctenocepahlides (Ct). felis was more common (4.50%) than Ct. canis (3.30%). Stomoxys calcitrans (3.90%) was the only prevalent specie of fly in the study area. Infestation rate was higher in young sheep (72.68%) as compared to adults (27.32%) and level of infestation was significantly higher in females (75.37%) than males (24.62%). Amongst various breeds of sheep, Cholistani (19.81%) had the highest prevalence followed by Kajli (13.49%), Thalli (12.94%) and Lohi (11.80%). Prevalence of flies (37%) and lice (47%) was highest in December and January, respectively; whereas, that of fleas (39%) reached a peak in April. Among various associated determinants, stall feeding, closed housing, tethered animals and non-cemented floor were found positively associated (P less than 0.05) with insect infestation. The results showed that insect abundance and the variety of genera were wide in this part of Pakistan. This also causes concern over the emergence of insect-borne diseases in domestic animals.
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