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Ticks Tick Borne Dis

Title:		"Identification of a non-host semiochemical from miniature pinscher, Canis lupus familiaris, that repels Rhipicephalus sanguineus sensu lato (Acari: Ixodidae)"
Author(s):		Zeringota V; Pereira-Junior RA; Sarria ALF; Henrique ACC; Birkett MA; Borges LMF;
Address:		"Programa de Pos-Graduacao em Ciencia Animal, Escola de Veterinaria e Zootecnia, Universidade Federal de Goias, Av. Esperanca, s/n - Campus Samambaia, Goiania, GO, 74690-900, Brazil. Departamento de Biociencias e Tecnologia, Instituto de Patologia Tropical e Saude Publica, Universidade Federal de Goias, Goiania, GO, 74605050, Brazil; Centro Universitario de Goias, Uni-Anhanguera, Av. Joao Candido de Oliveira, 115, 74423-115, Goiania, GO, Brazil. Biointeractions and Crop Protection Department, Rothamsted Research, West Common, Harpenden, Hertfordshire, AL5 2JQ, United Kingdom. Escola de Veterinaria e Zootecnia, Universidade Federal de Goias - UFG, Campus Samambaia, Goiania, GO, Brazil. Programa de Pos-Graduacao em Ciencia Animal, Escola de Veterinaria e Zootecnia, Universidade Federal de Goias, Av. Esperanca, s/n - Campus Samambaia, Goiania, GO, 74690-900, Brazil; Departamento de Biociencias e Tecnologia, Instituto de Patologia Tropical e Saude Publica, Universidade Federal de Goias, Goiania, GO, 74605050, Brazil. Electronic address: ligia@ufg.br"
Journal Title:		Ticks Tick Borne Dis
Year:		2021
Volume:		20201003
Issue:		1
Page Number:		101582 -
DOI:		10.1016/j.ttbdis.2020.101582
ISSN/ISBN:		1877-9603 (Electronic) 1877-959X (Linking)
Abstract:		"It is already known that the beagle breed of domestic dogs produces semiochemicals capable of repelling the brown dog tick, Rhipicephalus sanguineus sensu lato (s.l.). With a view to discovering new non-host semiochemicals as tick repellents, we compared the semiochemicals produced by a putative tick-resistant breed of dog, miniature pinscher, with known tick-resistant (beagle) and tick-susceptible (English cocker spaniel) breeds. Two non-host compounds produced by beagles, i.e. 2-hexanone and benzaldehyde, were shown to be present in samples collected from all three breeds. Furthermore, two compounds, 6-methyl-5-hepten-2-one and 1,2,4-trimethylbenzene, were found in higher amounts in samples collected from miniature pinscher dogs. The mean amounts of benzaldehyde, 2-hexanone and 1,2,4-trimethylbenzene were similar for beagles and miniature pinschers (P > 0.05) and higher than the means observed for cocker spaniels (P < 0.05), whereas the mean amount of 6-methyl-5-hepten-2-one produced by miniature pinschers was significantly higher (P < 0.05) than for the other breeds of dogs. In Petri-dish assays with adult R. sanguineus s.l., 6-methyl-5-hepten-2-one was repellent for all observation periods evaluated for the two highest concentrations (0.100 and 0.200 mg.cm(-2), P < 0.01). The obtained results support our hypothesis that miniature pinschers are a tick-resistant dog breed and agree with previous observations of miniature pinschers being the breed least parasitized by ticks. Furthermore, the non-host semiochemical 6-methyl-5-hepten-2-one has potential to be developed for use as a repellent for the protection of susceptible dogs from R. sanguineus s.l. ticks"
Keywords:		Acaricides/analysis/*pharmacology Animals Benzaldehydes/analysis/pharmacology Benzene Derivatives/analysis/pharmacology Dog Diseases/parasitology/*prevention & control Dogs Methyl n-Butyl Ketone/analysis/pharmacology Pheromones/analysis/*pharmacology Rhip;
Notes:		"MedlineZeringota, Viviane Pereira-Junior, Ronaldo A Sarria, Andre L F Henrique, Ariele C C Birkett, Michael A Borges, Ligia M F eng Research Support, Non-U.S. Gov't Netherlands 2020/10/11 Ticks Tick Borne Dis. 2021 Jan; 12(1):101582. doi: 10.1016/j.ttbdis.2020.101582. Epub 2020 Oct 3"