Proceedings
Recent evidence indicates that the small lungworm, Muellerius capillaris can cause generalized interstitial pneumonia in goats; this differs significantly from the typically non-clinical nodular form seen in sheep. Secondary bacterial infection is not unusual. Relatively little is known about the treatment of parasitisms in goats, and very few anthelmintics are approved for use in goats. We investigated the use of fenbendazole against a variety of pulmonary and gastrointestinal parasites in 13 pygmy goats. The goats were infected with the following types and levels of parasites and several goats exhibited some respiratory signs: 77 percent positive for M. capillaris (moderatemany larvae), 100 percent POS for mixed trichostrongyles (Haemonchus, Ostertagia, Trichostrongylus, etc. (mod-many eggs), 85 percent POS for Strongyloides (few-mod eggs), 31 percent POS for Trichuris ovis and Capillaria (few eggs), 8 percent POS for Nematodirus (few eggs), 15 percent POS for Moniezin (few-many eggs) and 100 percent POS for Eimeria (few-many oocysts of 5 species). Most goats were 2-year-olds. Although the usual dosage of fenbendazole is 5 mg/kg body weight, European literature indicated best efficacy against the small lungworms Muellerius, Protostrongylus and Cystocanlus, and whipworms, T. ovis, at dosages in the range of 15-40 mg/kg. The goats were dosed twice with 15 mg/kg fenbendazole at a 3 week interval, and re-examined 2 weeks later. At that time all the animals were negative for helminth eggs and larvae, indicating 100 percent efficacy. All but the kids were also negative for oocysts, which in the kids dropped from many to few being shed. No problems were associated with the fenbendazole theraphy. It was also very active against bronchial lungworms (Dictyocaulus) in sheep at 5-40 mg/kg, which could be applied to goats. Levamisole, on the other hand, showed good eficacy against Dictyocaulus at 8 mg/kg (recommended), but poor efficacy against Muellerius at 15 mg/kg. Higher dosages of fenbendazole (15-40 mg/kg) should pose no problems in goats
| Main Authors: | , , , , |
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| Format: | biblioteca |
| Published: |
Scottsdale, AZ (EUA)
1982
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| Subjects: | CAPRINOS, SALUD ANIMAL, ENDOPARASITOS, CONTROL DE ENFERMEDADES, ESTADOS UNIDOS DE AMERICA, |
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