Mammalian pheromones VIII Chemical characterization of preorbital gland secretion of grey duiker, Sylvicapra grimmia (Artiodactyla: Bovidae)
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Using gas chromatography-mass spectrometry 33 constituents of the preorbital gland of the grey duiker, Sylvicapra grimmia, were identified as unbranched alkanes, 2-alkanones, alkanals, alkanoic acids, alkan-4-olides, as well as 3-methyl-3-buten-1-ol, (Z)-9-octadecenoic acid, benzyl cyanide, diethyl sulfoxide, 2-isobutyl-1,3-thiazole, 2-isobutyl-4,5-dihydro-1,3-thiazole, and 3,4-epoxy-2-dodecanone. Determination of the relative concentrations of these components in a limited number of secretion samples taken from males and females revealed that in these samples the two thiazole derivatives and the epoxy ketone were present in consistently and significantly higher concentrations in male than in female secretions. This suggests that they could act as sex recognition cues. © 1990 Plenum Publishing Corporation.