Wesley Adson Costa Coelho

Prevalência e fatores de risco para brucelose suína em Mossoró-RN

The study aimed to determine the prevalence of brucellosis and its risk factors in the pig herd of Mossoro-RN. Comprised a cross-sectional quantitative approach and epidemiological study, where 412 blood samples of pigs from major producers in the municipality were collected and inspection of herds with interviews with producers were conducted. Antibodies to Brucella spp. were detected by the rose Bengal test (RBT) and confirmed by the complement fixation test (CFT). The prevalence of brucellosis in pigs was 27.0% in the RBT and 17.5% in the CFT. In 55% of the surveyed properties there was at least one positive animal, and these prevalence ranged from 6.7% to 80.0%. Risk factors that were influencing the occurrence of the disease were the presence of rats in the farms, contact with cattle and the young age of the animals. The study results showed that the causative agent of brucellosis was circulating in pigs in the municipality of Mossoro-RN, with high prevalence in the herd and on the properties, indicating the risk of transmission of this zoonosis to humans.

Aspectos morfométricos de Haemonchus contortus (Rudolphi, 1803) procedentes de caprinos (Capra hircus) da região semiárida do Rio Grande do Norte, Brasil

In northeastern Brazil, Haemonchus contortus is considered a gastrointestinal nematode with great veterinary relevance, causing reduced production, delayed development, economic losses and death of small ruminants. The objective of this study was to identify the morphometric variation and the types of vulvar appendages in H. contortus from goats in the semiarid region of Rio Grande do Norte. We used 100 units of H. contortus, from the collection of the Laboratory of Animal Parasitology of Federal Rural University of the Semi-Arid (UFERSA), where they were mounted between slide and coverslip with glycerin, to measure in micrometer ocular at 10X objective with correction factor of 1.3636. The body length of males was lower than females (p < 0.05), which showed, respectively, mean ± standard deviation of 13,26 ± 1,15 e 18,32 ± 1,39 μm. Regarding the type of vulvar appendage found in females, 72% were linguiforme type, 18% flat type and 10% button. These data contribute significantly to the taxonomy and differentiation of these endoparasites, especially in northeastern semi-arid region, where haemonchose has a worrisome role for raising goats.

Risk factors for trypanosomiasis by Trypanosoma vivax in cattle raised in Rio Grande do Norte state

Arq. Inst. Biol., v.85, 1-6, e0232016, 2018 RESUMO: Objetivando determinar a prevalência de anticorpos anti-Trypanosoma vivax e os possíveis fatores de risco associados à infecção em bovinos no estado do Rio Grande do Norte, nordeste do Brasil, o trabalho consistiu em um estudo epidemiológico transversal, com amostragem não probabilística por conveniência, no qual foram analisadas, por meio da reação de imunofluorescência indireta, 467 amostras de soro sanguíneo de bovinos. Das amostras testadas, 42 foram reagentes para anticorpos IgG anti-Trypanosoma vivax, o que correspondeu à prevalência de 9,0%. Os fatores de risco que influenciaram a ocorrência da tripanossomose foram: exploração com finalidade do tipo leite, criação de bovinos de raça europeia, categoria animal vaca em lactação, aquisição de animais, forrageamento das margens de açudes e rios, além da presença de vetores mecânicos. A alta prevalência encontrada em animais de corte (59,5%), fêmeas (95,2%), raça europeia (88,1%), vacas em lactação (85,7%), pastagem a margens de açudes e rios (95,2%), além da presença de vetores mecânicos (81%) e aquisição de animais (88,1%), indica a expansão da tripanossomose no semiárido do Nordeste, e as informações obtidas poderão esclarecer os fatores epidemiológicos que determinam a ocorrência da tripanossomose por T. vivax na região.

Teste in vitro da eficácia da cipermetrina e amitraz sobre Rhipicephalus sanguineus (Acari: Ixodidae) no Rio Grande do Norte, Brasil

The Rhipicephalus sanguineus is an ectoparasite that infests dogs. Features importance due to transmission of various pathogens. The control of the tick is based on acaricides, and the main active principles resistance has been observed. The aim of this work was to verify the efficacy of amitraz 12.5% and cypermethrin 5% on teleógenas R. sanguineus. We collected 90 teleógenas in dogs in the city of Mossoró, Rio Grande do Norte. Products acaricides were diluted according to the manufacturers recommendation. The engorged females suffered immersion bath for five minutes, then were acondicionas in petri dishes, inspected daily and maintained in environments with average ANDRE, W.P.P. et al. Teste in vitro da eficácia da cipermetrina e amitraz sobre Rhipicephalus sanguineus (Acari: Ixodidae) no Rio Grande do Norte, Brasil. PUBVET, Londrina, V. 8, N. 1, Ed. 250, Art. 1653, Janeiro, 2014. temperature (30.10o max. and 26.14omin:) and relative humidity (63.34% max and 40.33% min) for 30 days. The group amitraz showed 100% efficacy of inhibiting oviposition teleógenas while cypermethrin obtained efficacy ranging from 0.0 to 88.8 with a mean ± SD of 32.1 ± 48.5, respectively. The amitraz showed the greatest efficacy on teleógenas R. sanguineus from pet dogs in the city of Mossoró, however, it is necessary to adopt measures to educate the proper use of these active principles in order to avoid the occurrence of resistance.

Analysis of cases of human leishmaniasis and its relation to euthanasia of animals collected by the central control of zoonoses Mossoró-RN

1 Departamento de Medicina Veterinaria, Universidade Federal Rural do Semi-Arido, Brasil. 2 Laboratorio de Parasitologia Animal, Universidade Federal Rural do Semi-Arido, Brasil. 3 Programa de Pos-Graduacao em Ciencia Animal, Universidade Federal Rural do SemiArido, Brasil. 4 Programa de Pos-Graduacao em Ciencias Veterinarias, Universidade Estadual do Ceara, Brasil. ___________________________________________________________________________

Ocorrência de Amblyomma auricularium (Conil, 1878) em tatu-galinha de vida livre (Dasypus novemcinctus) (Xenartra: Dasypodidae) no Ceará, Brasil

4 Medico veterinario e doutorando do Programa de Pos-Graduacao em Ciencia Animal da UFERSA. 5,6 Discentes da graduacao em Medicina Veterinaria da UFERSA. 7 Medica veterinaria, Docente do DCAn da UFERSA. RESUMO - A coleta sistematica de ixodideos em mamiferos silvestres contribui com informacoes valiosas para o manejo de populacoes tanto em liberdade in situ como ex situ em parques zoologicos, criadores comerciais, conservacionistas e cientificos. Dentre estes animais menciona-se os tatus-galinha, Dasypus novemcinctus, que quando em seu habitat natural ou em cativeiro podem ser acometidos por carrapatos que afetam sua saude e bem-estar. Nesta linha, o presente trabalho objetivou fazer o registro da ocorrencia de infestacao por Amblyomma auricularium em D.novemcinctus em Russas, estado do Ceara, Brasil. Os carrapatos foram recuperados de dois tatus mantidos sob condicoes naturais. Apos as coletas, os animais foram soltos em seu ambiente e os ectoparasitos transferidos para frascos contendo alcool 70% para posterior identificacao taxonomica. Esta ultima foi realizada no Laboratorio de Parasitologia Animal da Universidade Federal Rural do Semi-Arido com auxilio de chaves dicotomicas. Dos animais, recuperou-se 25 ixodideos, sendo uma larva de Amblyomma sp., seis ninfas e dezoito carrapatos adultos (doze femeas e seis machos) identificados como A. auricularium. A ocorrencia de A.auricularium e bastante conhecida parasitando tatus, contudo esta e a segunda vez que se registra a ocorrencia desta especie parasitando D. novemcinctus de vida livre nas condicoes semiaridas do Ceara, Brasil. Espera-se, estimular pesquisas com mamiferos silvestres de vida livre a fim de coletar, identificar e registrar especies de ixodideo, contribuindo com estudos epidemiologicos que possam esclarecer melhor as interacoes entre o meio ambiente, hospedeiros e os carrapatos. Palavras-chaves: Carrapato, Infestacao, Ixodidae ABSTRACT The systematic collection of ticks on wild mammals contributes valuable information for the management of populations both in free in situ and ex situ in zoos, commercial breeders, conservationists and scientists. Among these animals is referred tothenine-banded armadillo, Dasypus novemcinctus, when in their natural habitat or in captivity may be affected by ticks that affect their health and well-being. In this line, the present study aimed to register the occurrence of infestation by Amblyomma auricularium in D. novemcinctus in Russas, Ceara state, Brazil. Ticks were recovered from two armadillos kept under natural conditions. After collection, the animals were released in their environment and ectoparasites transferred to vials containing70% alcohol for later taxonomic identification. The latter was carried out in the Laboratory of Animal Parasitology of the Universidade Federal Rural do Semi-Arido with the aid of a dichotomous key. The animals recovered 25 ixodid, one larva of Amblyomma sp., Six nymphs and adult tick seighteen (twelve females and six males) identified as A. auricularium. The occurrence of A. auricularium is well known parasitizing armadillos, however thisis the second time that records the occurrence of this species parasitizing D. novemcinctus free livingin semi- arid conditions of Ceara, Brazil. It is hoped, stimulate research on free-living wild mammals in order to collect, identify and record species of ticks, contributing to epidemiological studies that may clarify the interactions between environment, host and ticks.