Table 1.
P0 generation breeding parameters during and after treatment with ivermectin-containing feed
| Ivermectin | No. of litters per breeding pair (mean ± 1 SD) | No. of pups born per breeding pair (mean ± 1 SD) | No. of pups weaned | Pup mortality (%) | Weight (g; mean ± 1 SD) of F1 weanlings |
| During treatment | |||||
| 0 ppm (control) | 0.8 ± 0.8 | 6.5 ± 6.4 | 32 | 67.8 | 10.4 ± 1.4 |
| 12 ppm | 1.1 ± 0.6 | 7.0 ± 4.4 | 23 | 77.8 | 10.6 ± 1.8 |
| 24 ppm | 1.2 ± 0.7 | 8.0 ± 4.8 | 17 | 89.1a | 9.8 ± 2.1 |
| 48 ppm | 1.0 ± 0.6 | 7.4 ± 4.5 | 0a | 100a | not applicable |
| After treatment | |||||
| 0 ppm (control) | 0.7 ± 0.6 | 5.8 ± 4.4 | 33 | 70.1 | 10.1 ± 1.5 |
| 12 ppm | 1.3 ± 0.8 | 10.3 ± 6.0 | 65 | 60.3 | 9.5 ± 2.1 |
| 24 ppm | 1.3 ± 0.8 | 10.1 ± 6.1 | 62 | 56.4 | 10.1 ± 1.0 |
| 48 ppm | 0.9 ± 0.7 | 6.0 ± 4.8 | 42 | 60.8 | 9.8 ± 1.4 |
a
P < 0.05 when compared with value for control group