scholarly journals Research Note: Performance of Single Comb White Leghorn Pullets as Influenced by Niacin Supplementation from Zero to Six Weeks of Age and Subsequent Layer Performance

1992 ◽  
Vol 71 (4) ◽  
pp. 771-774
Author(s):  
R.H. HARMS ◽  
S.M. BOOTWALLA
Keyword(s):  
Research Note ◽  
White Leghorn ◽  
Subsequent Layer ◽  
Single Comb

scholarly journals Research Note: Relationship of Comb Color to Liver Appearance and Fat Content in Single Comb White Leghorn Laying Hens

1991 ◽  
Vol 70 (12) ◽  
pp. 2544-2546 ◽  
Author(s):  
J.L. GRIMES ◽  
D.V. MAURICE ◽  
S.F. LIGHTSEY ◽  
W.C. BRIDGES
Keyword(s):  
Laying Hens ◽  
Fat Content ◽  
Research Note ◽  
White Leghorn ◽  
Relationship Of ◽  
Single Comb

scholarly journals Quantitative and Qualitative Protein Changes in the Developing Single Comb White Leghorn Chicken Embryo

1972 ◽  
Vol 51 (1) ◽  
pp. 313-320 ◽  
Author(s):  
J.A. Asmar ◽  
P.L. Pellett ◽  
Nur Hariri ◽  
M.D. Hariri
Keyword(s):  
Chicken Embryo ◽  
White Leghorn ◽  
White Leghorn Chicken ◽  
Single Comb

The inheritance of shank colour in single comb White Leghorn and Australorp fowls

1951 ◽  
Vol 2 (4) ◽  
pp. 494
Author(s):  
F Skaller ◽  
GW Grigg
Keyword(s):  
White Leghorn ◽  
Genetical Analysis ◽  
Different Types ◽  
White Leghorns ◽  
Single Comb ◽  
Mode Of Inheritance

Evidence has been presented in the literature on the mode of inheritance of shank colour in various breeds of chickens, but little has hitherto been known about the same aspect in an Australian breed, the Black Australorp. Observations on the incidence of shank colour in different types of crosses between yellow-shanked White Leghorns and black-shanked Australorps are reported in this paper. According to the observations made by other workers on White Leghorn and other breeds, a hypothesis is advanced regarding the genes involved in determining shank colour in the White Leghorn and Australorp. A genetical analysis of the observations made by the authors on 847 single crosses, 71 backcrosses, and 31 zig-zag crosses is presented and shows close statistical agreement with the hypothesis. A genetical formula, including four autosomal and two sex-linked genes, is suggested which would explain the mode of inheritance of shank colour in White Leghorns and Australorps.

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