Table 1 In vivo efficacy of macrocyclic lactone products against Psoroptes ovis on 16 Belgian Blue beef farms in Belgium and the Netherlands
From: Resistance against macrocyclic lactones in Psoroptes ovis in cattle
Farm | No. of animals | Acaricide | RedMC (%) | 95% CI | Resistance status | nTR | Mite-free proportion (%) |
|---|---|---|---|---|---|---|---|
1 | 13 | IVM | 68.5 | 25.4–93.2 | Resistant | > 7 | 0/13 (0) |
2 | 10 | IVM | 99.3 | 97.7–100 | Sensitive | 4 | 8/10 (80) |
3 | 9 | IVM /DOR | 33.3 | − 65.8 to 87.6 | Resistant | 3 | 2/9 (22) |
4 | 7 | MOX-LA DOR | 7.6 | − 58.6 to 56.1 | Resistant | > 4 | 0/7 (0) |
5 | 9 | IVM | − 36.8 | − 200.7 to 63.0 | Resistant | > 5 | 0/7 (0) |
6 | 9 | DOR | 97.8 | 92.4–99.0 | Sensitive | 2 | 4/9 (44) |
7 | 9 | DOR | 78.5 | 72.2–83.9 | Resistant | 4 | 2/9 (22) |
8 | 9 | IVM | -82.5 | − 203.1 to 7.8 | Resistant | 5 | 2/9 (22) |
9 | 10 | DOR | 97.8 | 94.0–99.7 | Sensitive | 3 | 5/10 (50) |
10 | 9 | MOX | 89.7 | 65.4–99.5 | Resistant | 4 | 2/9 (22) |
11 | 9 | DOR | 80.4 | 56.7–94.8 | Resistant | 2 | 3/9 (33) |
12 | 9 | DOR | 95.8 | 86.2–99.8 | Suspected resistant | 4 | 1/9 (11) |
13 | 8 | DOR | 50.3 | 29.7–67.8 | Resistant | 3 | 4/8 (50) |
14 | 8 | DOR | 86.2 | 77.8–92.7 | Resistant | 3 | 5/8 (63) |
15 | 10 | DOR | 65.5 | 51.6–77.0 | Resistant | 2 | 2/10 (20) |
16 | 9 | DOR | 92.0 | 82.6–97.8 | Resistant | 3 | 3/9 (33) |