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Phytoparasitica
Benjamini, L., Dept. of Vertebrate Pest Control, ARO, Volcani Center, Bet Dagan, Israel
Virgin females of the Levant vole (Microtus guentheri), 2–4 months old and raised from weaning in an all-female group, responded to nonvisual male stimuli by an open vagina; the response fluctuated between 5–15% and 30–60%, depending on the stimulation. The priming effect of male-related stimuli on the activation of the female reproductive system was examined using uterine weight as a parameter. In unstimulated virgin females 55–75 days of age raised in an all-female group, the uterine weight showed a temporary spontaneous increase in weight of approximately 45%. Induced increase in uterine weight in such females following stimulation by licking a drop of urine from an intact experienced male was also the strongest at this age. This showed a special sensitivity of the female reproductive system to male stimulation soon after sexual maturation, occurring at the age of about 50 days. Females 55–75 days of age responded with a significant increase in uterine weight already after 1.5 min with an intact experienced male in a cage. The increase in uterine weight was similar whether it was caused by smelling an experienced male’s urine, by chewing a dry filter paper previously impregnated with the urine, or by licking a drop of it. Licking a mixture of fresh male feces in water had no effect. The involvement of the vomeronasal organ in the pheromonal perception was discussed. © 1987, Springer Science + Business Media B.V.. All rights reserved.
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Primer pheromones in the levant vole (microtus guentheri): activation of reproduction in the female by male-related stimuli
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Benjamini, L., Dept. of Vertebrate Pest Control, ARO, Volcani Center, Bet Dagan, Israel
Primer pheromones in the levant vole (microtus guentheri): activation of reproduction in the female by male-related stimuli
Virgin females of the Levant vole (Microtus guentheri), 2–4 months old and raised from weaning in an all-female group, responded to nonvisual male stimuli by an open vagina; the response fluctuated between 5–15% and 30–60%, depending on the stimulation. The priming effect of male-related stimuli on the activation of the female reproductive system was examined using uterine weight as a parameter. In unstimulated virgin females 55–75 days of age raised in an all-female group, the uterine weight showed a temporary spontaneous increase in weight of approximately 45%. Induced increase in uterine weight in such females following stimulation by licking a drop of urine from an intact experienced male was also the strongest at this age. This showed a special sensitivity of the female reproductive system to male stimulation soon after sexual maturation, occurring at the age of about 50 days. Females 55–75 days of age responded with a significant increase in uterine weight already after 1.5 min with an intact experienced male in a cage. The increase in uterine weight was similar whether it was caused by smelling an experienced male’s urine, by chewing a dry filter paper previously impregnated with the urine, or by licking a drop of it. Licking a mixture of fresh male feces in water had no effect. The involvement of the vomeronasal organ in the pheromonal perception was discussed. © 1987, Springer Science + Business Media B.V.. All rights reserved.
Scientific Publication
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