SEX-LIMITED INHERITANCE IN POULTRY 



TABLE 3— Continued 



Silky 



X Fi (Leghorn d' X Silky 9 ) 



Gametes 

 Offspring 



In all cf cf pigmenta- 

 tion only partly in- 

 hibited; all 9 9, 

 deeply pigmented 



Gametes 

 Offspring 



Silky 



/i 



li 



ii 



X Fi (Silky d" X Leghorn 9 ) 



All offspring fully pig- 

 mented 



4. Barring in Plymouth Rock poultry follows a similar law to 

 Silky pigmentation. Spillman ('08) first pointed this out for 

 the Barred Rock X Indian Game cross and his results were 

 confirmed by Pearl and Surface ('10, '10 a, '10 b). Goodale ('09 



