scholarly journals Fearfulness and Performance Related Traits in Selected Lines of Japanese Quail (Coturnix japonica)

2002 ◽  
Vol 81 (3) ◽  
pp. 321-326 ◽  
Author(s):  
F. Minvielle ◽  
A.D. Mills ◽  
J.M. Faure ◽  
J.L. Monvoisin ◽  
D. Gourichon
Keyword(s):  
Japanese Quail ◽  
Coturnix Japonica ◽  
Selected Lines ◽  
And Performance

Color Preferences in Quail Chicks: Generalization of the Effects of Genetic Selection

Behaviour ◽  
1978 ◽  
Vol 65 (1-2) ◽  
pp. 263-269 ◽  
Author(s):  
Kovach Joseph K.
Keyword(s):  
Japanese Quail ◽  
Genetic Selection ◽  
Coturnix Japonica ◽  
Selected Lines ◽  
Color Preferences ◽  
Selection For ◽  
Different Color ◽  
Color Combinations

Japanese quail (C. coturnix japonica) were artificially selected for early preferences of blue over red and red over blue. Subjects were drawn from the 2nd and 8th generations of the selected lines and were tested for color choices by five different color pairs, in addition to the blue-red pair used for selection. Eight generations of selection for choices between blue and red modified choice responses to all color combinations. Maximum preferences were not shown in the selected choices between blue and red, but in the choice of green over red in the subjects from the line selected for preference of blue and in the choice of yellow over blue in the subjects from the line selected for preference of red.

Effects of Feed Additives on Growth-Related Hormones and Performance of Japanese Quail (Coturnix japonica)

2011 ◽  
Vol 10 (7) ◽  
pp. 821-827 ◽  
Author(s):  
Masoud Teshfam ◽  
Tohid Vahdatpour ◽  
Kambiz Nazeradl ◽  
Naser Ahmadiasl
Keyword(s):  
Japanese Quail ◽  
Feed Additives ◽  
Coturnix Japonica ◽  
And Performance

Japanese Quail (Coturnix japonica)

2020 ◽  
Author(s):  
Philip J.K. McGowan ◽  
Guy M. Kirwan
Keyword(s):  
Japanese Quail ◽  
Coturnix Japonica

scholarly journals Fos expression in the medial preoptic area and nucleus accumbens of female Japanese quail (Coturnix japonica) after maternal induction and interaction with chicks

2021 ◽  
Vol 234 ◽  
pp. 113357
Author(s):  
Joseph S. Lonstein ◽  
Thierry D. Charlier ◽  
Jodi L. Pawluski ◽  
Nadege Aigueperse ◽  
Maryse Meurisse ◽  
...  
Keyword(s):  
Nucleus Accumbens ◽  
Japanese Quail ◽  
Preoptic Area ◽  
Medial Preoptic Area ◽  
Coturnix Japonica ◽  
Fos Expression

scholarly journals Developmental changes in gonadotropin-inhibitory hormone in the Japanese quail (Coturnix japonica) hypothalamo-hypophysial system

2003 ◽  
Vol 178 (2) ◽  
pp. 311-318 ◽  
Author(s):  
T Ubuka ◽  
M Ueno ◽  
K Ukena ◽  
K Tsutsui
Keyword(s):  
Japanese Quail ◽  
Median Eminence ◽  
Anterior Pituitary ◽  
Coturnix Japonica ◽  
Developmental Changes ◽  
External Layer ◽  
Mature Peptide ◽  
Gonadotropin Release ◽  
Gonadotropin Inhibitory Hormone ◽  
Precursor Mrna

We previously isolated a novel dodecapeptide containing a C-terminal -Arg-Phe-NH(2) sequence, SIKPSAYLPLRF-NH(2) (RFamide peptide), from the Japanese quail (Coturnix japonica) brain. This novel quail peptide was shown to be located in neurons of the paraventricular nucleus (PVN) and their terminals in the median eminence (ME), and to decrease gonadotropin release from cultured anterior pituitary in adult birds. We therefore designated this peptide gonadotropin-inhibitory hormone (GnIH). Furthermore, a cDNA encoding the GnIH precursor polypeptide has been characterized. To understand the physiological roles of this peptide, in the present study we analyzed developmental changes in the expressions of GnIH precursor mRNA and the mature peptide GnIH during embryonic and posthatch ages in the quail diencephalon including the PVN and ME. GnIH precursor mRNA was expressed in the diencephalon on embryonic day 10 (E10) and showed a significant increase on E17, just before hatch. GnIH was also detected in the diencephalon on E10 and increased significantly around hatch. Subsequently, the diencephalic GnIH content decreased temporarily, and again increased progressively until adulthood. GnIH-like immunoreactive (GnIH-ir) neurons were localized in the PVN on E10, but GnIH-ir fibers did not extend to the ME. However, GnIH-ir neurons increased in the PVN on E17, just before hatch, and GnIH-ir fibers extended to the external layer of the ME, as in adulthood. These results suggest that GnIH begins its function around hatch and acts as a hypothalamic factor to regulate gonadotropin release in the bird.

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