Inheritance Studies of Dairy and Beef Breeds. 



133 



affected the constitution or vitality of the best animals of a high 

 producing breed, the width of the crosses will not influence the 

 vigor of the hybrids described in the succeeding pages. 



The parents used in the crosses possess the following con- 

 trasting characters seen in Table I. 



TABLE I. 



Contrasting Characters of the Parental Breeds of the 

 Crossbred Herd. 











Holstein- 



Aberdeen- 



Character 



Jersey 



Guernsey 



Ayrshire 



Friesian 



Angus 



Body Color 



Fawn or 

 Dun 



Light Pawn 

 or Dun 



Red 



Black 



Black 



White markings Often absent 



Present 



Present 



Present 



Often absent 



Switch color 



Black or 



Light fawn 



Red or 



Black or white Black 





white 



or white 



white 







Muzzle pigment 



Black 



White 



Black 



Black or white Black 



Tongue pigment 



Black 



White 



Black 



Black or white Black 



Horns 



Horns 



Horns 



Horns 



Horns 



Polled 



Conformation 



Dairy 



Dairy 



Dairy 



Dairy 



Beef 



Milk quantity 



Medium 



Medium 



Medium 



Large 



Low ' 



Milk quality 



High 



High 



Medium 



Low 



High 



The Inheritance of Body Color. 



The dita for the study of the body color are given in the 

 table below. 



TABLE II. 



Inheritance of Ground Color in the Cattle Coat. 2 



Mating. 



Character of resulting offspring. 



Sire 



Black 

 Black 

 Black 



Black 



Fi 



Pi 



Black 

 Fawn 

 Black 



Fawn 



Black 

 Fawn 

 Red 



Black 



Fi 



Fawn 



Fawn 



Fi 



Black 



10 Black 

 23 Black 



4 Black 



5 Black 



2 Black 



1 Black, 1 Dark Dun, 1 Deep 

 Orange 



3 Black 



