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Table 2 Mean (± SEM) total worm burden and mean percentage prevalence of strongylid species present over four tracer lambs in each of the 4 treatment groups and each year and season of the study. ‘-‘means that the species was not present

From: Effect of anthelmintic treatment strategy on strongylid nematode species composition in grazing lambs in Scotland

Group Year Season Total worm burden % Te. circ % Tr. axei % Tr. vit % Tr. col % O. ven % C. ovina % T. ovis
NST 2006 Early 1488 (±597) 25.0 28.1 8.8 11.7 26.4
Late 12,184 (±4473) 79.9 4.1 15.2 0.8
2011 Early 2594 (±774) 94.8 1.7 2.5 1.0
Late 23,954 (±3942) 94.1 2.2 3.8
TST 2006 Early 2537 (±1206) 47.9 7.7 9.8 31.1 3.5
Late 36,317 (±20,307) 48.6 0.8 50.6
2011 Early 5929 (±2277) 52.2 47.8
Late 14,586 (±3436) 63.9 36.1
SPT 2006 Early 1548 (±1151) 73.1 7.3 5.9 13.7
Late 41,182 (±20,304) 54.8 44.3 0.9
2011 Early 2770 (±955) 70.2 29.8
Late 27,740 (±4259) 73.3 0.7 25.9 0.1
MT 2006 Early 9016 (±3408) 81.1 7.1 0.3 5.7 4.4 1.4
Late 19,181 (±7313) 53.6 45.8 0.5
2011 Early 9694 (±2393) 79.8 20.2
Late 37,834 (±7184) 40.4 0.4 58.9 0.2 0.1