Anthelmintic resistance in gastrointestinal nematodes of dairy cattle in the Macalister Irrigation District of Victoria

Objective To report anthelmintic resistance in gastrointestinal nematode parasites of cattle on commercial dairy farms in the Macalister Irrigation District of Gippsland, Victoria. Methods Faecal egg count reduction tests (FECRTs) were used to assess anthelmintic resistance on 20 Macalister Irrigati...

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Veröffentlicht in:	Australian veterinary journal 2016-01, Vol.94 (1-2), p.35-41
Hauptverfasser:	Bullen, SL, Beggs, DS, Mansell, PD, Runciman, DJ, Malmo, J, Playford, MC, Pyman, MF
Format:	Artikel
Sprache:	eng
Schlagworte:	Agricultural Irrigation Animals anthelmintics Anthelmintics - therapeutic use benzimidazole Cattle Cattle Diseases - drug therapy Cattle Diseases - parasitology Confidence intervals dairy cattle Dairy farms Dairy industry Dairying Drug Resistance gastrointestinal nematodes Intestinal Diseases, Parasitic - drug therapy Intestinal Diseases, Parasitic - parasitology Intestinal Diseases, Parasitic - veterinary macrocyclic lactone Ostertagia - drug effects Ostertagia ostertagi Ostertagiasis - drug therapy Ostertagiasis - parasitology Ostertagiasis - veterinary Victoria
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Zusammenfassung:	Objective To report anthelmintic resistance in gastrointestinal nematode parasites of cattle on commercial dairy farms in the Macalister Irrigation District of Gippsland, Victoria. Methods Faecal egg count reduction tests (FECRTs) were used to assess anthelmintic resistance on 20 Macalister Irrigation District dairy farms between May 2013 and June 2014. All three currently available anthelmintic classes for cattle nematodes in Australia were tested. Faecal samples were collected 10–14 days post‐treatment for individual faecal egg counts (FEC) and larval differentiation. The arithmetic mean FEC for each treatment group was compared with an untreated control post‐treatment. Resistance was defined as
ISSN:	0005-0423 1751-0813
DOI:	10.1111/avj.12407