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Biomedical subjects

I A Barger

Publications and source records attributed to I A Barger.

42 records · Page 3Linked to original sources
PubMed1979

Benzimidazole resistance in small strongyles of horses.

Treatments with mebendazole, cambendazole or febantel were ineffective in reducing the faecal egg count of a group of 40 horses infected with small strongyle species. Evidence was also obtained that this apparent resistance extended to fenbendazole. In horses dosed with morantel tartrate egg counts were reduced to zero by 7 days after treatment. The development of resistance is discussed in relation to previous treatment of the horses and the mode of action of febantel.

Animals↗
PubMed1979

Milk production of grazing dairy cattle after a single anthelmintic treatment.

The prevalence of nematode infections in lactating dairy cattle was determined by faecal egg counts and cultures from over 350 cows selected at random from twelve herds. The mean egg count was 3 eggs per gram (epg) and 43% of the cows sampled were passing detectable concentrations of eggs (greater than 6 eggs) in their faeces. In June 1976 171 cows in 10 herds were treated with 7.5 mg/kg fenbendazole and their milk production compared over the following 2 months with that of 164 untreated cows in the same herds. Anthelmintic treatment had no significant influence on milk production in any of the herds. The contrasting results of this study and recent studies in the United States of America are discussed.

Animals↗
PubMedDate not supplied

Prospects for integration of novel parasite control options into grazing systems.

Novel parasite control methods are considered under criteria of efficacy, cost, ease of implementation and sustainability, together with a subjective assessment of when they are likely to become available commercially. It is concluded that vaccines, genetically resistant hosts, biological control, anthelmintics directed against free-living stages, and grazing management will probably satisfy all of these criteria, but that most of these methods are at least 5-10 years away from commercial exploitation. The exception is grazing management, which can be used immediately and at low cost, to minimise current use of anthelmintics. Research is required to assess the possibility of control programs based on grazing management that avoid anthelmintic treatment altogether. Extension of such control programs, in a context of declining government enthusiasm for provision of agricultural extension services, may be their greatest barrier to widespread adoption.

Animal Husbandry↗