Anthelmintic efficacy of avermectin B1a and dihydroavermectin B1a against ovine gastrointestinal nematodes in 1977.
Am J Vet Res
; 45(5): 976-7, 1984 May.
Article
en En
| MEDLINE
| ID: mdl-6547280
In a critical study, 40 female mixed-breed lambs with experimental infections of Cooperia spp, Trichostrongylus colubriformis, Ostertagia circumcincta, T axei, and Haemonchus contortus were allocated to 8 groups in 1977. Groups 1 and 5 served as controls. Groups 2 to 4 were treated orally with avermectin B1a at dosage levels of 25, 50, and 100 micrograms/kg of body weight, respectively. Groups 6 to 8 were given oral dihydroavermectin B1a at dosage levels of 50, 100, and 200 micrograms/kg, respectively. The lambs were euthanatized and necropsied 6 days after treatment. The compounds were greater than 99% effective at all dosage levels.
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Enfermedades de las Ovejas
/
Tricostrongiloidiasis
/
Parasitosis Intestinales
/
Lactonas
/
Antihelmínticos
Límite:
Animals
Idioma:
En
Revista:
Am J Vet Res
Año:
1984
Tipo del documento:
Article