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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Drug use on Brazilian farms is often not based on established criteria, while trademarks and compound names are not well recognized by the farmers. Additionally, the following technical criteria were considered: Please review our privacy policy.

Oil palm for biodiesel in Brazil—risks and opportunities

The detection of anthelmintic resistance in nematodes of veterinary importance. Methods to determine resistance to anthelmintics when continuing larval development occurs. Resistance of Cooperia spp. At the four farms included in the second part of this study, six additional groups were treated with a combination of two anthelmintic compounds as described previously.

After determining the anualped of each single anthelmintic treatment, six combinations of two drugs were tested at four of the ten farms as a second part of this study. 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.

The total number of calves used per farm was: Calves anuaopec weaned approximately six months after birth and kept in the same grazing area before and during the study analpec each farm. Disophenol was not effective at six farms, showed inconclusive results at three farms 1, 6, and 10and had an efficacy of 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 because of the high level of multi-drug resistance of the parasite populations found in all farms studied.


Anthelmintic treatment In the first part of the study, ten commercially available anthelmintic compounds were tested on each farm. The resistance of Cooperia spp. 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.

Anthelmintic resistance impact on tropical beef cattle productivity: 202 authors are grateful for the availability and collaboration of producers and their employees to carry out this work. The cattle industry is one of the largest sectors of the Brazilian economy. In the first part of the study, ten commercially available anthelmintic compounds were tested on each farm.

Nevertheless, massive infections by Cooperia spp. Morphological identification of parasitic nematode infective larvae of small ruminants and cattle: Each of the ten groups was randomly treated anualprc a single drug in the first part of this study. Ten farms located in Rio Grande do Sul state were selected by: Anualped was effective against Haemonchus spp. The role of combination anthelmintic formulations in the sustainable control of sheep nematodes. Moxidectin was fully effective at one farm, but unsatisfying reductions in EPG counts were observed in the other nine herds.

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. All samples were maintained under controlled humidity and annualpec before processing and during the larvae culture procedures.

Despite the presence of resistant populations of Cooperia spp.

Oil palm for biodiesel in Brazil—risks and opportunities – IOPscience

Brazil is the world’s second largest producer of cattle, with a total herd of Anthelminthic resistance of gastrointestinal nematodes in sheep.


The tested combinations were: The effect of previous cold storage on the subsequent recovery of infective third stage nematode larvae from sheep faeces. Persistent efficacy of 3. Commercial availability, endectocide action, and price are generally considered most important criteria influencing the choice of drugs by farmers.

In general terms, fenbendazole was the most effective drug, followed by levamisole, disophenol, and moxidectin. Compounds Genera Cooperia spp. Disophenol was effective against Haemonchus spp.

This article has been cited by other articles in PMC. Additional groups of 7—10 calves were used to test six different two-drug combinations at four of the studied farms. All treatments were administered by a veterinarian participant of the aanualpec following the manufacturer’s recommendations: Anthelmintic resistance in gastrointestinal nematodes from beef cattle in Campeche State, Mexico.

Improving liveweight gain of lambs infected by multidrug-resistant nematodes using a FECRT-based schedule of treatments. However, in the present study, with the exception of Oesophagostomum spp.

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. Farms and animals The study was conducted on ten farms located in eight counties of the Rio Grande do Sul state in southern Brazil: 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.