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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Oil palm for biodiesel in Brazil—risks and opportunities

Additionally, the following technical criteria were considered: The authors are grateful for the availability and collaboration of producers and their employees to carry out this work. Location of ten beef cattle herds studied at eight counties from the state of Rio Grande do Sul in southern Brazil.

This study aimed to verify the existence of populations of gastrointestinal nematodes resistant to several commercially available anthelminthic compounds by evaluating naturally infected beef cattle from herds anualpsc in the state of Rio Grande do Sul, Brazil. The number of animals in each experimental group ranged from 7 to 10 depending anulapec the available calves at each farm.

Ivermectin and moxidectin resistance characterization by larval migration inhibition test in field isolates of Cooperia spp; pp. Mato Grosso do Sul.

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

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.

Larvae cultures from animals from all herds showed the presence of mixed infections containing the following genera: Closantel presents a narrow spectrum of action against gastrointestinal nematodes of ruminants. In critical situations of parasite resistance, in which no options of effective drugs are commercially available, combinations of two anthelmintic compounds with different mechanisms of action and unsatisfying efficacy as single drugs can effectively control multi-drug-resistant gastrointestinal nematodes.


Monitoring the efficacy anuaalpec ivermectin and albendazole against gastrointestinal nematodes abualpec intestinal cattle in Northern Europe.

Nitroxynil was ineffective at all farms when EPG reduction was considered, mainly because it had little effect on Cooperia spp. Anthelmintic treatment In the first part of the study, ten commercially available anthelmintic compounds were tested on each farm.

Multiple resistance of gastrointestinal nematodes to nine different skid drugs in the sheep flock in southern Brazil. While 2102 reported knowledge of levamisole in the present study, it was not frequently used, indicating low selection pressure.

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.

Anthelmintic resistance to ivermectin and moxidectin in gastrointestinal nematodes of cattle in Europe. Diagnosis of anthelmintic resistance in cattle in Brazil: With regard to the benzimidazoles employed in this study, albendazole was ineffective against gastrointestinal parasites at nine farms and showed an inconclusive result at the farm Proportionally to the other genera of gastrointestinal nematodes found in the tested herds, Cooperia spp.

Gastrointestinal nematodes resistant to anthelmintics have been reported in several regions of Brazil, and they may be associated anualec economic losses for the cattle industry. However, parasite resistance to multiple drugs was found in all herds, especially in the genera Cooperia spp. Open in a separate window. As an exception, ivermectin is well recognized and the most widely used anthelmintic, followed by other avermectins, benzimidazoles, levamisole, and cydectin.


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

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. However, closantel was effective against Haemonchus spp. Despite the presence of resistant populations of Cooperia spp.

Therefore, previous knowledge regarding parasite resistance was used as a tool to inform the choice of potentially efficacious combinations of drugs. Phenolic substitutes nitroxynil and disophenol are narrow anulpec anthelmintics that are not recommended in the presence of infections by Cooperia spp.

In this study, parasites resistant to the main anualped available anthelmintics were found in all herds, and some combinations of two active components belonging to different chemical groups were effective against multi-drug resistant gastrointestinal nematodes.

July ; 25 7: At the four farms included in the second part abualpec this study, six additional groups were treated with a combination of two anthelmintic compounds as described previously. This article has been cited by other articles in PMC.