Publications by authors named "Raphaela Barbosa Naves"
Selective versus strategic control against Rhipicephalus microplus in cattle: A comparative analysis of efficacy, animal health, productivity, cost, and resistance management.
Vet Parasitol
September 2023
This study compared selective control versus strategic control against Rhipicephalus (Boophilus) microplus, under conditions of a real dairy farm. Strategic control requires that all animals be treated with acaricide at regular pre-determined intervals. Selective control only requires treatment of infested animals and only when they are at or above a pre-determined threshold.
View Article and Find Full Text PDFPopulation dynamics of Rhipicephalus microplus in dairy cattle: influence of the animal categories and correlation with milk production.
Vet Res Commun
June 2023
Article Synopsis
- The study examined the susceptibility of taurine and zebuine cattle to the cattle tick Rhipicephalus microplus, focusing on tick population dynamics within the same herd over two experiments.
- In the first experiment, researchers analyzed tick burdens in various age groups of cattle, noting that nursing calves reared in groups had higher tick burdens compared to those raised individually and that tick peaks occurred more frequently in weaning calves and lactating cows.
- The second experiment involved infesting cattle of different ages with tick larvae to measure how many fully engorged females detachment occurred, with the results indicating age and previous tick exposure affected tick burden and treatment needs.
Eimeria are ubiquitous parasites and eimeriosis treatment is based on coccidiostats or coccidicides used prophylactically, metaphylactically, or therapeutically. The long-term efficacy of toltrazuril (TZR, 15 mg/kg) against experimentally infected naïve calves was investigated. Seven groups (six treated and one control) of six animals each were formed.
View Article and Find Full Text PDFThe fungus Paracoccidioides lutzii is one of the species of the Paracoccidioides genus, responsible for a neglected human mycosis, endemic in Latin America, the paracoccidioidomycosis (PCM). In order to survive in the host, the fungus overcomes a hostile environment under low levels of oxygen (hypoxia) during the infectious process. The hypoxia adaptation mechanisms are variable among human pathogenic fungi and worthy to be investigated in Paracoccidoides spp.
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