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Result from a pilot study including 5 herds that were treated to eradicate lice in December 1993. |
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| Herd |
Size (no. dairy cows) |
Herd characteristic |
Lice infestations before medication |
Medicament |
Lice present after medication |
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|
|
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| March 1994 |
March 1995 |
March 1996 |
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|
|
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| A |
25 |
Open herd: Purchasing livestock Using common pasture |
D. bovis L. vituli |
Flumethrin |
No lice |
No lice |
No lice |
| B |
16 |
Closed herd |
D. bovis |
Deltamethrin |
No lice |
No lice |
No lice |
| C |
10 |
Open herd: Using common pasture |
D. bovis |
Deltamethrin |
No lice |
D. bovis |
D. bovis |
| D |
20 |
Open herd: Purchasing livestock |
L. vituli |
Deltamethrin |
No lice |
No lice |
No lice |
| E |
40 |
Open herd: Purchasing livestock |
D. bovis L. vituli |
Flumethrin |
No lice |
No lice |
D. bovis L. vituli |
Nafstad and Grønstøl Acta Veterinaria Scandinavica 2001 42:81 doi:10.1186/1751-0147-42-81 |
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