Data/hora: 20/06/2024 11:49:29

Biblioteca(s): 	Embrapa Unidades Centrais.	
Data corrente: 	02/04/2018	
Data da última atualização: 	02/04/2018	
Autoria: 	RAMOS, F.; PORTELLA, L. P.; RODRIGUES, F. de S.; REGINATO, C. Z.; CEZAR, A. S.; SANGIONI, L. A.; VOGEL, F. S. F.	
Afiliação: 	Fernanda Ramos, DMVP/CCR/Universidade Federal de Santa Maria - UFSM; Luiza P. Portella, DMVP/CCR/Universidade Federal de Santa Maria - UFSM; Fernando de S. Rodrigues, DMVP/CCR/Universidade Federal de Santa Maria - UFSM; Caroline Z. Reginato, DMVP/CCR/Universidade Federal de Santa Maria - UFSM; Alfredo S. Cezar, DMVP/CCR/Universidade Federal de Santa Maria - UFSM; Luis A. Sangioni, DMVP/CCR/Universidade Federal de Santa Maria - UFSM; Fernanda S. F. Vogel, DMVP/CCR/Universidade Federal de Santa Maria - UFSM.	
Título: 	Anthelminthic resistance of gastrointestinal nematodes in sheep to monepantel treatment in central region of Rio Grande do Sul, Brazil.	
Ano de publicação: 	2018	
Fonte/Imprenta: 	Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 1, p. 48-52, janeiro 2018.	
Idioma: 	Português	
Notas: 	Título em português: Resistência anti-helmíntica de nematódeos gastrointestinais de ovinos ao monepantel na região central do Rio Grande do Sul.	
Conteúdo: 	Given the numerous reports of anthelminthic resistance of sheep nematodes to different anthelmintic compounds, this study aimed to evaluate the resistance status of gastrointestinal nematodes from naturally infected sheep to monepantel in the state of Rio Grande do Sul. Four farms that present extensive raising system and absence of anthelmintic treatment for 60 days were selected for the study. Lambs that present counts of eggs per gram of feces (EPG) &#8805;200 (sensitivity of 50 EPG) one day (D-1) before the treatment were select for the study and randomly separated into two groups, a control group and an experimental group treated with monepantel. Feces were collected 9 days after the treatment (D+9) for EPG counts and fecal culture. The monepantel was 100% effective only on 2. The efficacy found on farm 1, 3, and 4 were 2.82%, 25.8%, and 78.4%, respectably. There were no viable larvae post-treatment at farm 2, but the genera Haemonchus, Trichostrongylus, Cooperia, and Strongyloides were resistant to it at the other farms. This study shows the presence of parasites resistant to the treatment with monepantel, pointing to the importance of monitoring its efficacy in sheep flocks of Rio Grande do Sul, Brazil.	
Palavras-Chave: 	Anthelminthic resistance; Eficácia; Monepantel; Nematódeo gastrointestinal; Pequeno ruminante; Resistência anti-helmíntica.	
Thesagro: 	Ovino.	
Thesaurus Nal: 	Gastrointestinal nematodes; Sheep; Small ruminants.	
Categoria do assunto: 	--	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/174820/1/Anthelminthic-resistance-of-gastrointestinal-nematodes.pdf	
Registro original: 	Embrapa Unidades Centrais (AI-SEDE)	
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