caa a22 4500 388112263 CHVBK 20180307125356.0 cr unu---uuuuu 161130e199902 xx s 000 0 eng 10.1017/S0022149X99000207 doi S0022149X99000207 pii (NATIONALLICENCE)cambridge-10.1017/S0022149X99000207 Variation in resistance to haemonchosis: selection of female sheep resistant to Haemonchus contortus [Elektronische Daten] Seventy female lambs (6-7 months old) which were exposed to natural infections of Haemonchus contortus were designated as responders or non-responders on the basis of 10 weekly cumulative faecal egg counts. Selected responder and non-responder lambs were treated with ivermectin, housed separately and 6 weeks post-housing, seven lambs from each group were given a trickle infection of Haemonchus contortus at 1000 L3 daily for 5 days per week up to 2 weeks and examined weekly for 10 weeks after first infection. Analysis of data revealed significantly lower mean faecal egg counts and non-significantly less weight loss in responder than non-responder lambs. Mean values of haemoglobin, packed cell volume, total serum protein and peripheral eosinophil counts were significantly higher in responders than non-responders. In contrast, serum pepsinogen concentration was significantly less in responders than in non-responders. At 10 weeks post-infection, there were fewer pathological lesions and significantly lower worm burdens in responders than in non-responders. These results demonstrate a distinct resistance in responders to Haemonchus contortus infection. Cambridge University Press Hooda V. Department of Veterinary Parasitology, CCS, Haryana Agricultural University, Hisar, 125004, India Yadav C.L. Department of Veterinary Parasitology, CCS, Haryana Agricultural University, Hisar, 125004, India Chaudhri S.S. Department of Veterinary Parasitology, CCS, Haryana Agricultural University, Hisar, 125004, India Rajpurohit B.S. Central Sheep Breeding Farm, Hisar 125004, India Journal of Helminthology Cambridge University Press 73/2(1999-02), 137-142 0022-149X 73:2<137 1999 73 JHL https://doi.org/10.1017/S0022149X99000207 text/html Onlinezugriff via DOI 1 review-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0022149X99000207 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hooda V. Department of Veterinary Parasitology, CCS, Haryana Agricultural University, Hisar, 125004, India NATIONALLICENCE 700 1- Yadav C.L. Department of Veterinary Parasitology, CCS, Haryana Agricultural University, Hisar, 125004, India NATIONALLICENCE 700 1- Chaudhri S.S. Department of Veterinary Parasitology, CCS, Haryana Agricultural University, Hisar, 125004, India NATIONALLICENCE 700 1- Rajpurohit B.S. Central Sheep Breeding Farm, Hisar 125004, India NATIONALLICENCE 773 0- Journal of Helminthology Cambridge University Press 73/2(1999-02), 137-142 0022-149X 73:2<137 1999 73 JHL CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge