Table 3 Efficacy of benzimidazole (BZ) and ivermectin (IVM) against Cooperia spp. and Ostertagia spp. on Irish dairy calf to beef farms
Farm | Pre-treatment | Post-BZ treatment | Post-IVM treatment | ||||||
|---|---|---|---|---|---|---|---|---|---|
No. L3 | %Cooperia | %Ostertagia | No. L3 | %Cooperia (%efficacy) | %Ostertagia (%efficacy) | No. L3 | %Cooperia (%efficacy) | %Ostertagia (%efficacy) | |
2 | 100 | 67 | 33 | 100 | 3 (99) | 97 (11) | 100 | 76 (0) | 24 (0) |
3 | 100 | 32 | 68 | 100 | 13 (97) | 87 (90) | 100 | 96 (0) | 4 (97) |
5 | 100 | 41 | 59 | N/A | N/A | N/A | 100 | 96 (68) | 4 (99) |
6 | 100 | 76 | 24 | 100 | 48 (97) | 52 (90) | 98 | 81 (0) | 17 (27) |
7 | 100 | 4 | 96 | N/A | N/A | N/A | 100 | 33 (0)a | 67 (54) |
8 | 100 | 23 | 75 | 21 | 10 (84) | 90 (56) | 97 | 30 (65) | 70 (75) |
10 | 35 | 57 | 43 | 100 | 41 (63) | 59 (30) | 100 | 54 (7) | 46 (40) |
11 | 42 | 10 | 90 | 52 | 0 (100)a | 100 (5) | 100 | 44 (51)a | 56 (93) |
12 | 100 | 16 | 84 | 24 | 0 (100) | 24 (87) | 100 | 32 (0) | 68 (58) |
13 | 100 | 5 | 95 | 29 | 0 (100)a | 100 (86) | 100 | 84 (0)a | 16 (91) |
16 | 100 | 72 | 27 | N/A | N/A | N/A | 100 | 90 (51) | 10 (85) |
21 | 100 | 68 | 32 | N/A | N/A | N/A | – | – | – |