Katherina Coumendouros

Publications (3) View all

• Source

  Available from: Guilherme G Verocai

  Article: Ocurrence of Philophthalmus gralli (Trematoda: Philophthalmidae) in farmed ostriches in Brazil

  Guilherme Gomes Verocai, Lauro Nogueira Lopes, Leonardo Burlini, Thaís Ribeiro Correia, Clarissa Pimentel de Souza, Katherina Coumendouros
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  ABSTRACT: This paper reports the occurrence of parasitism by the Oriental eye-fluke, Philophthalmus gralli in ostriches reared in a commercial flock from the State of Minas Gerais State, Southeastern Brazil. The two affected birds presented lacrimation, inflammatory reaction and loss of body condition. After physical examination the birds revealed, 17 and 15 trematodes each, only in the right eyes. The economic impact of this parasite on Brazilian ostrich industry is still undetermined, requiring further studies.
  Tropical Animal Health and Production 04/2012; 41(7):1241-1242. · 1.12 Impact Factor
• Article: [Efficacy of eprinomectin in the control of Haematobia irritans in cattle].

  Fabio B Scott, Katherina Coumendouros, Isabella Vilhena Freire Martins, Laerte Grisi, Clarissa P Souza, Júlio I Fernandes, Vanessa P C Vieira
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  ABSTRACT: To evaluate the efficacy of a formulation with 0,5% of eprinomectin in cattle to control H. irritans, two trials were conducted for the control of H. irritans in the field in the state of Rio de Janeiro, using 0,5% of eprinomectin, at a dose rate of 500 mc g/kg body weight, corresponding to 10 mL/100 kg. The efficacies for days +7, +14, +21 e +28 after treatment were respectively 100%; 94,3%; 86,2% and 24,5% for the first study and 100%, 100%, 100%, and 0% for the second one.
  Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology: Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 09/2008; 17 Suppl 1:75-7. · 0.46 Impact Factor
• Article: [Comparative efficacy of two topical formulations containing 10% fipronil on the control of Ctenocephalides felis felis on cats].

  Michelle Godan de Freitas Tancredi, Thaís Ribeiro Correia, Francisco de Assis Ribeiro, Maria Clara da Silva Negreiros Botelho, Pedro Vianna Tavares, Fabio Barbour Scott, Guilherme Gomes Verocai, Katherina Coumendouros
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  ABSTRACT: The goal of the present study was to evaluate the comparative efficacy of two topical formulations containing 10% fipronil on the control of Ctenocephalides felis felis on cats. The trial was performed at the Laboratory of Experimental Chemotherapy in Veterinary Parasitology from the Department of Animal Parasitology of the Institute of Veterinary of the Universidade Federal Rural do Rio de Janeiro. Eighteen mixed-breed cats were divided in three groups of six animals each. One group remained without treatment (control). The other groups received as treatment the two topical formulations, a commercial reference and the novel one, both containing 10% fipronil. Treated animals received 0.5 mL of product along their cervical region. Cats were infested on days - 2, +5, +12, +19, +26 and +33. Evaluations were made using the "comb test". The first one was undertaken 4 days after the initial infestation (day +2), and others 48 hours after following infestations (days +7, +14, +21, +28 and + 35). Both tested formulations had satisfactory efficacy until day + 35. No differences were observed comparing the efficacy levels between both formulations throughout the experimental period. The novel topical 10% fipronil formulation presented desirable efficacy on the control of C. f. felis on cats.
  Revista brasileira de parasitologia veterinaria = Brazilian journal of veterinary parasitology: Orgao Oficial do Colegio Brasileiro de Parasitologia Veterinaria 18(4):74-7. · 0.46 Impact Factor