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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
02/08/2023 |
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Autoria: |
WEBB, R. F.; OTTAWAY, S. J. |
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Título: |
The prevalence of anthelmintic resistance in sheep nematodes on the central tablelands of New South Wales. |
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Ano de publicação: |
1986 |
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Fonte/Imprenta: |
Australian Veterinary Journal, v. 63, n. 1, p. 13-16, Jan. 1986. |
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DOI: |
DOI: 10.1111/j.1751-0813.1986.tb02863.x |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A survey was undertaken to assess the prevalence of anthelmintic resistance in sheep nematode populations on 40 commercial farms distributed throughout the central tablelands of New South Wales. Representatives of the 2 major groups of broad spectrum anthelmintics with different modes of action (thiabendazole and levamisole) were used at the manufacturer's recommended dose rates. Efficacy was assessed on the basis of the reduction in faecal strongyle egg counts 7 days after treatment. An efficacy of less than 90% using both anthelmintics was obtained on 4 farms. Thiabendazole had an efficacy of less than 90% on a further 21 farms and levamisole had an efficacy of less than 90% on an additional 4 farms. There was no evidence of anthelmintic resistance on 8 farms, while the remaining 3 had insignificant parasite burdens. Based on larval cultures from faeces, Ostertagia and Trichostrongylus were the most significant species in resistant populations. Haemonchus burdens were sporadic and levels of resistance relatively low. Nematodirus burdens were widespread but no evidence of resistance was detected. |
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Palavras-Chave: |
Controle; Drug effects; Endoparasito; Ostertagia sp; Therapeutic use. |
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Thesagro: |
Anti-Helmíntico; Haemonchus Contortus; Ovino; Parasitologia; Resistência. |
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Thesaurus Nal: |
Anthelmintics; Drug resistance; Drug therapy; Endoparasites; Levamisole; Parasitology; Sheep diseases; Thiabendazole; Trichostrongylus. |
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Categoria do assunto: |
H Saúde e Patologia |
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Marc: |
LEADER 02198naa a2200373 a 4500
001 1522174
005 2023-08-02
008 1986 bl uuuu u00u1 u #d
024 7 $aDOI: 10.1111/j.1751-0813.1986.tb02863.x$2DOI
100 1 $aWEBB, R. F.
245 $aThe prevalence of anthelmintic resistance in sheep nematodes on the central tablelands of New South Wales.$h[electronic resource]
260 $c1986
520 $aAbstract: A survey was undertaken to assess the prevalence of anthelmintic resistance in sheep nematode populations on 40 commercial farms distributed throughout the central tablelands of New South Wales. Representatives of the 2 major groups of broad spectrum anthelmintics with different modes of action (thiabendazole and levamisole) were used at the manufacturer's recommended dose rates. Efficacy was assessed on the basis of the reduction in faecal strongyle egg counts 7 days after treatment. An efficacy of less than 90% using both anthelmintics was obtained on 4 farms. Thiabendazole had an efficacy of less than 90% on a further 21 farms and levamisole had an efficacy of less than 90% on an additional 4 farms. There was no evidence of anthelmintic resistance on 8 farms, while the remaining 3 had insignificant parasite burdens. Based on larval cultures from faeces, Ostertagia and Trichostrongylus were the most significant species in resistant populations. Haemonchus burdens were sporadic and levels of resistance relatively low. Nematodirus burdens were widespread but no evidence of resistance was detected.
650 $aAnthelmintics
650 $aDrug resistance
650 $aDrug therapy
650 $aEndoparasites
650 $aLevamisole
650 $aParasitology
650 $aSheep diseases
650 $aThiabendazole
650 $aTrichostrongylus
650 $aAnti-Helmíntico
650 $aHaemonchus Contortus
650 $aOvino
650 $aParasitologia
650 $aResistência
653 $aControle
653 $aDrug effects
653 $aEndoparasito
653 $aOstertagia sp
653 $aTherapeutic use
700 1 $aOTTAWAY, S. J.
773 $tAustralian Veterinary Journal$gv. 63, n. 1, p. 13-16, Jan. 1986.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
