ANUALPEC () ‘Anuário da Pecuária Brasileira.’ 1st edn. (Instituto FNP and Agra Pesquisas Ltda: São Paulo, Brazil). ANUALPEC () ‘Anuário da. million animals were finished in feedlots (BEEFPOINT, ), which represented .. the past two decades (ANUALPEC, ). Concomitantly with the greater. accounting for about % of the national herd (ANUALPEC. ), this region shows the highest growth rate in the coun- try. Crossbreeding is.

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Please review our privacy policy. Fenbendazole was the most effective compound in the studied herds, followed by levamisole, disophenol, and moxidectin. Thus, combinations of two anthelmintics that were not abualpec effective as single drugs, had different modes of action, had broad spectra of action when possibleand were effective against different genera of gastrointestinal nematodes were tested. The authors of this manuscript have no financial or personal relationships with other people or organizations that could inappropriately influence or bias the content of the paper.

Statistical analysis On each farm, pre-treatment and post-treatment EPG counts were used to calculate the efficacy of each treatment based on the reduction in EPG.

The authors are grateful for the availability and collaboration of producers and their employees to carry out this work. Phenolic substitutes nitroxynil and disophenol are narrow spectrum anthelmintics that are not recommended in the presence of infections by Cooperia spp. Ten farms located in Rio Grande do Sul state were selected by: July ; 25 7: Anthelmintic treatment In the first part of the study, ten commercially available anthelmintic compounds were tested on each farm.

The low efficacy of each single drug and the presence of multi-drug resistant gastrointestinal nematodes infecting cattle are major problems that prevent adequate anthelmintic control at the farms evaluated in this study. Calves were weaned approximately six months after birth and kept in the same grazing area before and during the study on each farm. This study aimed to evaluate the resistance status of gastrointestinal nematodes from naturally infected beef cattle to several commercially available anthelmintics, as well as to test the efficacy of combinations of anthelmintics against multi-resistant gastrointestinal nematodes.


Diagnosis of anthelmintic resistance in cattle in Brazil: Improving liveweight gain of lambs infected by multidrug-resistant nematodes using a FECRT-based schedule of treatments. The choice of two-drug combinations was made with a focus on including different modes of action and efficacy against different genera of gastrointestinal nematodes.

Therefore, previous knowledge regarding parasite resistance was used as a tool to inform the choice of potentially efficacious combinations of drugs. Gastrointestinal nematodes resistant to anthelmintics have been reported in several regions of Brazil, and they may be associated with economic losses for the cattle industry.

Anthelmintic resistance in cattle nematodes in the US. On each farm, pre-treatment and post-treatment EPG counts were used to calculate the efficacy of each treatment based on the reduction in EPG.

Despite the presence of resistant populations of Cooperia spp. Some strains of Oesophagostumum spp.

Drugs and Drug Resistance are provided here courtesy of Elsevier. Arithmetic mean AM and standard deviation SDminimum MIN and maximum MAX fecal egg counts, and proportions of genera identified before the treatments D-2 in the feces of naturally infected beef cattle from ten farms in the state of Rio Grande do Sul.

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Anthelmintic resistance to ivermectin and moxidectin in gastrointestinal nematodes of cattle in Europe. Discovery of a highly 2102 anthelmintic combination that shows mutual hypersusceptibility. Published online Feb 8.

However, the results of the present study indicate a worrying situation in relation to the control of gastrointestinal nematodes infections in cattle herds from Rio Grande do Sul aanualpec of the high level of multi-drug resistance of the parasite populations found in all farms studied.

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Introduction The cattle industry is one of the largest sectors of the Brazilian economy. Diagnostic of the control and sensitivity profile of nematodes from sheep to albendazole and levamisole in northern Minas Gerais, Brazil. These calves 212 distributed into 10 groups of 7—10 animals per farm and treated with ivermectin, doramectin, eprinomectin, fenbendazole, closantel, nitroxynil, disophenol, levamisole, albendazole, or moxidectin.


Larvae cultures from animals from all herds showed the presence of mixed infections containing the following genera: The effect of previous cold storage on the subsequent recovery of infective third stage nematode larvae from sheep faeces.

Author information Article notes Copyright and License information Disclaimer. The effect of anthelmintic resistance on the productivity in feedlot cattle. Anthelmintic resistance in gastrointestinal nematodes from beef cattle in Campeche State, Mexico. Considering the location of the farms, these data suggest that parasite resistance to BZs may be spreading in Rio Anulapec do Sul, similar to the situation observed for avermectins in several Brazilian herds.

Effectiveness evaluation of several cattle anthelmintics via the fecal egg count reduction test. Material and methods 2.

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Anualpe resistance to anthelmintics in sheep nematodes and comparison of methods used for their detection. First, all calves available at each farm were included in the study; however, animals with fewer than EPG before treatment were excluded prior to the formation of the experimental groups. Mato Grosso do Sul.

Monitoring the efficacy of ivermectin and albendazole against gastrointestinal nematodes of intestinal cattle in Northern Europe. Conflicts of interest The authors of this manuscript have no financial or personal relationships with other people or organizations that could inappropriately influence or bias the content of the paper. The broad detection of parasite resistance to several anthelmintics recognized as good quality commercial drugs suggests that parasite populations have developed resistance to the main classes of anthelmintic drugs available in Brazil.

Morphological 212 of parasitic nematode infective larvae of small ruminants and cattle: The detection of anthelmintic resistance in nematodes of veterinary importance.