SETORES-CHAVE E ÍNDICES DE LIGAÇÕES NO MUNICÍPIO DE LONDRINA-PARANÁ

Este artigo tem como objetivo estimar o sistema inter-regional de insumo-produto Londrina-Paraná-Restante do Brasil para o ano de 2013, tornando possível a identificação de setores-chave para nortear políticas de desenvolvimento do município que proporcionem o maior retorno em termos de desenvolvimento econômico e social. Os resultados mostram que os setores com maior capacidade de geração de empregos locais são 17-Saúde; 16-Educação; 18-Artes, cultura e recreação; 19-Outras atividades de serviços; e 14-Atividades administrativas e serviços complementares. As atividades econômicas de Londrina com maiores valores para o multiplicador de produção são 3-Indústria de transformação; 8-Transporte; 6-Construção; 9-Alojamento e alimentação; e 13-Informação e comunicação. Os setores-chave para a geração de rendimento formal em Londrina foram identificados como 16-Educação; 17-Saúde; 15-Administração pública; 13-Atividades profissionais, científicas e técnicas; 18-Artes, cultura, esporte e recreação. As 3-Indústrias de transformação; 8-Transporte; e 10-Informação e comunicação; foram identificadas como importantes com valores maiores de índices de ligações intersetoriais

Susceptibility of Rhipicephalus (Boophilus) microplus to ivermectin (200, 500 and 630 mu g/kg) in field studies in Brazil

The present study aimed to determine the susceptibility of 17 Rhipicephalus (Boophilus) microplus populations, originating in the Southeast and Southern regions of Brazil, to different ivermectin concentrations (200, 500 and 630 mu g/kg), administered through subcutaneous or topical (pour-on) routes. R. (B.) microplus populations from the states of Minas Gerais (seven populations), Sao Paulo (seven populations) and Parana (three populations) were chosen for the tests. The selected cattle were allocated to treatment groups on day 0, and block formation was based on the arithmetic mean of female ticks (4.5-8.0 mm long) counted on three consecutive days (-3, -2 and -1). To evaluate the therapeutic and residual efficacies of these formulations, tick counts (females ranging from 4.5 to 8.0 mm long) were performed on days 3,7 and 14 post-treatment, and continued on a weekly basis thereafter until the end of each experiment. The results obtained throughout this study, utilizing field efficacy studies, allowed us to conclude that the resistance of R. (B.) microplus against 200 and 500 mu g/kg ivermectin is widely disseminated because all tick populations that had contact with these specific concentrations were diagnosed as resistant. However, it is possible to infer that R. (B.) microplus resistance against 630 mu g/kg ivermectin was also widespread, diagnosed at six of ten analyzed properties. Resistance of these ectoparasites to 630 mu g/kg ivermectin is most likely emerging in three other populations of R. (B.) microplus. Strategies of resistance management need to be quickly determined to keep the selection pressure at a minimum level in Brazil. (C) 2014 Elsevier B.V. All rights reserved

Occurrences of Oestrus ovis parasitism in necropsied sheep in the Umuarama microregion, Paraná, Brazil

Between January 2007 and September 2013, 71 sheep belonging to 12 farms in the Umuarama microregion, State of Paraná, were evaluated regarding presence of Oestrus ovis larvae, during necropsies. The farms from which these animals originated were visited and the owners and employees were interviewed. Occurrences of O. ovis parasitism in sheep were diagnosed for the first time on this microregion. Of the 71 animals, 12 (16.9%) were parasitized by O. ovis, with mean intensity of 2.25 larvae per infested head (1 to 8 larvae/infested head). There was a high correlation (0.81, p=0.0346) between the number of larvae and the macroscopic lesions observed in these animals’ nasal cavities, such that sheep with more than 3 larvae may contain mucupurulent secretions or epistaxis. From the interviews conducted, it was found that all the farm owners were applying chemical parasite control methods (helminths and/or O. ovis), administered to all animals in the herds every 30 days (91.6% of the producers), using derivatives of macrocyclic lactones and/or benzimidazoles/imidazothiazoles. Further studies need to be conducted in this particular region, in an attempt to elucidate the prevalence of O. ovis parasitism in herds