Coturnix

About: Coturnix is a research topic. Over the lifetime, 953 publications have been published within this topic receiving 23305 citations.

Deposition of cadmium in tissues of coturnix quail fed honey bees.

Abstract: Insects have been reported to concentrate cadmium probably through food or water intake or by contact with contaminated surfaces. It is conceivable that avian species consuming such insects could concentrate cadmium in their tissues. In the work reported here, domesticated honey bees were found to contain appreciable levels of cadmium. The bees were collected in quantity and fed to Coturnix quail to study the extent to which an avian species may accumulate cadmium in liver and kidney as well as in their eggs.

Response variability in the quail (Coturnix coturnix Japónica)

Abstract: Twenty two Coturnix quails were tested in mazes involving a single forced turn preceding the choice point. With turn preference and direction of forced turn balanced the Ss showed a significant number of choices in the direction opposite the forced turn on all trials except the first two.

Research note: some observations on experimental avian encephalomyelitis.

Abstract: Avian encephalomyelitis (AE) is a widespread virus disease of young chickens, characterized by incoordination, bilateral ataxia, paresis, and, in some cases, head and neck tremors. Experimentally, the disease has been produced by different routes of inoculation in chickens. Natural infection has been reported only in chickens, pheasants, and coturnix quail. Turkey poults, ducklings, squabs, and guinea fowl have been infected experimentally with AE virus (7). Feibel et al. (1) observed some differences in susceptibility between different breeds of chickens and their sex-linked crosses. This study compared the infectivity, incubation period, and clinical response of standard-bred chicks, chicks of different inbred lines, turkey poults, and adult quail to AE virus inoculation, and recorded observations on four serial passages of AE virus in suckling mice.

Genetic differences in yolk testosterone levels influence maternal hormone deposition in the second laying cycle in Japanese quails.

Abstract: Maternally-derived yolk androgens exhibit distinct among- and within-female variations but limited data refer to inter-seasonal changes of maternal hormones in the yolk. We investigated the deposition of yolk testosterone (T) across two laying cycles in Japanese quail. To test how genetically-determined differences influence between cycle variations in yolk androgens we compared females from low (LET) and high (HET) egg T lines at the end of the first and at the beginning of the second laying cycle after an induced moult. Line differences in yolk T levels exhibited high consistency exceeding two reproductive cycles. Yolk T concentrations increased in the second laying cycle in HET but not in LET females. Plasma T levels did not differ between cycles in both lines and no line differences were found either before or after the moult indicating the presence of mechanisms limiting the increase of T concentrations in the circulation. Differences in the yolk T levels were not accompanied by changes in the egg and yolk mass. The HET quail laid eggs with heavier eggshell than the LET quail. Our results demonstrate different abilities of mothers to deposit T in their eggs over two reproductive seasons with expected consequences on the development of their progeny.