Comparative resistance of sheep breeds to Haemonchus contortus in a natural pasture infection
2010
Saddiqi, H.A. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Iqbal, Z. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Khan, M.N. (University of Agriculture, Faisalabad (Pakistan). Dept. of Parasitology) | Muhammad, G. (University of Agriculture, Faisalabad (Pakistan). Dept. of Clinical Medicine and Surgery)
The objective of the present study was to evaluate the resistance status of three indigenous sheep breeds (Thalli, Lohi & Kachhi) against Haemonchus contortus by natural pasture challenge infection. Following deworming, 15 male lambs of each breed were subjected to selected contaminated pastures in a vicinity of the livestock farms. Between breed variation was assessed on the basis of parasitological, hematological, biochemical and cellular parameters. After nine weeks, 10 lambs of each breed were randomly selected and slaughtered to evaluate the differences in adult worm burden among the sheep breeds. Overall, Lohi sheep performed relatively better in the trial; however difference between breeds remained low.
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