ROUGH-TEXTURED: A FEATHER STRUCTURE MUTANT OF JAPANESE QUAIL

1979 ◽  
Vol 21 (4) ◽  
pp. 443-448 ◽  
Author(s):  
C. W. Roberts ◽  
J. E. Fulton

In a hatch from an experimental population of Japanese quail Coturnix coturnix japonica 13 chicks were noted to have down, whose handling texture was extremely rough. As adults the rough-textured feather phenotype was also apparent. Genetic analysis indicated this feather structure mutant is autosomal, recessive, and inherited in a simple Mendelian fashion. The symbol rt was assigned to the rough-textured gene. A maternal effect, reducing embryo viability, was noted in progeny from rt/rt female parents. A comparison between the morphologies of the rough-textured trait in the Japanese quail and the fray feathered trait as reported in the chicken suggests the two traits do not exhibit gene homology.

1974 ◽  
Vol 52 (2) ◽  
pp. 291-300
Author(s):  
L. Wayne Dwernychuk ◽  
David H. Sheppard ◽  
Leslie E. Haley

A commercial seed fungicide–insecticide, Mergamma DB, and one of its constituents, phenylmercuric acetate, were fed to Japanese quail (Coturnix coturnix japonica) in the laboratory. Five levels of mercury (1.25, 2.50, 12.50, 25.00, and 50.00 ppm) mixed with laying meal were fed to birds during four 16-week experiments. Survival of female quail, egg production, and egg weight were significantly reduced at 50 ppm mercury (Mergamma DB as mercury source). Fertility, embryo viability, and hatchability were each significantly reduced at levels of 12.5 ppm mercury for both mercury compounds. Results showed that the Mergamma DB treatments produced more pronounced reproductive failure than phenylmercuric acetate. Breast muscle from treated birds and egg con tents contained significantly higher levels of mercury residue than in control birds, up to a maximum of 8.9 ppm in tissue and 2.3 ppm in eggs. Accumulation of mercury in male birds may have contributed to the significant decline m fertility of treated birds. Possible serious environmental implications of mercury seed treatments are discussed.


1983 ◽  
Vol 17 (2) ◽  
pp. 138-142 ◽  
Author(s):  
T. Nunoya ◽  
M. Tajima ◽  
M. Mizutani

A flock of Japanese quail with generalized glycogenosis has been established. Affected quail showed difficulty in raising their wings. Excessive accumulation of glycogen was seen in the liver, heart, skeletal muscle and brain, apparently due to decreased acid maltase activity. The condition appeared between 2 and 12 weeks of age and tissue deposition of glycogen increased with age. The growth of affected quail was normal and there were no deaths from the condition. Although genetic analysis has not yet been completed, an autosomal recessive inheritance is suspected.


2019 ◽  
Vol 28 (6) ◽  
pp. 1599-1607
Author(s):  
Kananbala Patra ◽  
Sujata Puspamitra ◽  
Aryadhara Das ◽  
Bandi K. Mallik ◽  
Prafulla K. Mohanty

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