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  • Re-emergence of Chorioptes bovis (Acari: Psoroptidae) in cattle in the state of Rio Grande do Sul, Brazil.

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    Author(s) : Vieira, M. I. B.Bordin, T.Agnol, B. D.Zanchin, F.Motta, A. C. daNoro, M.

    Author Affiliation : Veterinary Parasitology Laboratory, School of Agronomy and Veterinary Medicine - FAMV, University of Passo Fundo - UPF, Campus I, BR 285, Km 171, Bairro São José, CEP 99001-970, Passo Fundo, RS, Brazil.

    Author Email : marisabel@upf.br

    Journal article : Brazilian Journal of Veterinary Parasitology 2014 Vol.23 No.4 pp.530-533 ref.19

    Abstract : Here we describe an outbreak of chorioptic mange in cattle, 56 years after its first identification in Brazil. Between the months of June and July 2011, dermatitis characterized by alopecia and crusted and thickened skin at the insertion of the tail and in the ischiorectal fossa was recognized in 40 (35.7%) out of 112 Holstein cows on a farm in the northeastern mesoregion of the state of Rio Grande do Sul, Brazil. After diagnosing mange caused by Chorioptes bovis, the cows were weighed and treated with 0.5% ivermectin, as a pour-on single dose, and were separated into two groups: cows in early lactation and those in late lactation. The survival rate of C. bovis and the healing rate in the two groups of infested cows were monitored every seven days through skin scrapings. After 28 days of evaluation, the cure rate through treatment was greater among cows in early lactation (p<0.0001). The survival rate of C. bovis was higher in cows in late lactation.

    ISSN : 0103-846X

    DOI : 10.1590/S1984-29612014090

    URL : http://www.scielo.br/scielo.php?scrip...

    Record Number : 20153042099

    Publisher : Colégio Brasileiro de Parasitologia Veterinária

    Location of publication : São Paulo

    Country of publication : Brazil

    Language of text : English

    Language of summary : Portuguese

    Indexing terms for this abstract:

    Organism descriptor(s) : cattle, Chorioptes bovis

    Descriptor(s) : alopecia, clinical aspects, cows, dairy cattle, dairy cows, dermatitis, diagnosis, disease prevalence, drug therapy, ectoparasites, ectoparasitoses, emerging infectious diseases, epidemiology, infections, ivermectin, lactation stage, outbreaks, parasites, parasitoses, skin diseases, skin lesions

    Identifier(s) : chemotherapy, clinical picture, dermatoses, emerging diseases, emerging infections, parasitic diseases, parasitic infestations, parasitosis

    Geographical Location(s) : Brazil, Rio Grande do Sul

    Broader term(s) : Bos, Bovidae, ruminants, Artiodactyla, mammals, vertebrates, Chordata, animals, eukaryotes, Chorioptes, Psoroptidae, Astigmata, mites, Acari, Arachnida, arthropods, invertebrates, Community of Portuguese Language Countries, Developing Countries, Latin America, America, South America, Threshold Countries, Brazil