The prevalence of anthelmintic resistance in nematode parasites of sheep in southern Latin America: Uruguay.
Vet Parasitol
; 62(3-4): 213-22, 1996 Apr.
Article
em En
| MEDLINE
| ID: mdl-8686167
This survey was conducted on 252 farms randomly distributed over all the sheep raising areas in Uruguay. The study involved farms with more than 600 sheep, which represented 80% of the total sheep population of the country. Three anthelmintic groups were assessed, namely, benzimidazoles, levamisole and avermectins. Overall, the results showed 80% of sheep flocks had benzimidazole resistance, 71% had resistance to levamisole, and 1.2% of flocks showed resistance to avermectins. Approximately 28% of farms had resistance to one anthelmintic group, 64% to two anthelmintic groups, and 1% resistance to all three groups. Only 7.5% of farms had no detectable levels of anthelmintic resistance. More than 80% of farms had Trichostrongylus populations resistant to both benzimidazoles and levamisole. Resistance was recorded in all three anthelmintic groups for Haemonchus and resistance also occurred to benzimidazoles and levamisole in Ostertagia.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Doenças dos Ovinos
/
Ovinos
/
Resistência a Múltiplos Medicamentos
/
Nematoides
/
Infecções por Nematoides
Tipo de estudo:
Prevalence_studies
/
Risk_factors_studies
Limite:
Animals
País/Região como assunto:
America do sul
/
Uruguay
Idioma:
En
Revista:
Vet Parasitol
Ano de publicação:
1996
Tipo de documento:
Article
País de afiliação:
Uruguai
País de publicação:
Holanda