Table 6.
Efficacy (%) of anthelmintic combinations against each genus of gastrointestinal nematode fourteen days after treatment in naturally infected beef cattle at farms 1, 3, 7, and 8 in the state of Rio Grande do Sul, Brazil.
| Farm | Genus | Anthelmintic treatment and percentage reduction of each genus |
|||||
|---|---|---|---|---|---|---|---|
| Moxi + Leva | Moxi + Albe | Albe + Clos | Dora + Clos | Dora + Fenb | Leva + Clos | ||
| 1 | Coop | NL | 0 | 0 | 0 | 42.8 | 0 |
| Haem | NL | 100 | 100 | 100 | 0 | 100 | |
| Oesop | NL | 100 | 100 | 100 | 100 | 100 | |
| Ostert | NL | – | – | – | – | – | |
| Trich | NL | – | – | – | – | – | |
| 3 | Coop | 100 | 23 | 0 | 0 | 0 | 0 |
| Haem | 100 | 0 | 100 | 0 | 100 | 100 | |
| Oesop | 100 | 41.1 | 100 | 100 | 100 | 100 | |
| Ostert | 100 | 0 | 87.6 | 100 | 100 | 25.6 | |
| Trich | 0 | 47 | 100 | 29.3 | 100 | 0 | |
| 7 | Coop | 100 | 16.2 | 35.1 | 0 | 0 | 100 |
| Haem | 100 | 100 | 100 | 100 | 100 | 100 | |
| Oesop | 0 | 100 | 0 | 0 | 100 | 0 | |
| Ostert | – | – | – | – | – | 100 | |
| Trich | – | 0 | – | – | – | – | |
| 8 | Coop | NL | 0 | 0 | 0 | 100 | 0 |
| Haem | NL | 100 | 100 | 100 | 100 | 0 | |
| Oesop | NL | 100 | – | – | 100 | 100 | |
| Ostert | NL | – | – | – | – | – | |
| Trich | NL | – | – | – | – | – | |
Moxi + Leva = moxidectin 1% (0.2 mg/kg, subcutaneous) + levamisole 7.5% (3.75 mg/kg, subcutaneous), Moxi + Albe = moxidectin 1% (0.2 mg/kg, subcutaneous) + albendazole 15% (3.4 mg/kg, subcutaneous), Albe + Clos = albendazole 15% (3.4 mg/kg, subcutaneous) + closantel 10% (10 mg/kg, oral), Dora + Clos = doramectin 1% (0.2 mg/kg, subcutaneous) + closantel 10% (10 mg/kg, oral), Dora + Fenb = doramectin 1% (0.2 mg/kg, subcutaneous) + fenbendazole 10% (5 mg/kg, oral), Leva + Clos = levamisole 7.5% (3.75 mg/kg, subcutaneous) + closantel 10% (10 mg/kg, oral). Coop: Cooperia spp.; Haem: Haemonchus spp.; Oesop: Oesophagostomum spp.; Ostert: Ostertagia spp.; Trich: Trichostrongylus spp.; NL: no viable larvae after treatment (D+14).