130 



A MANUAL OF MENDELISM 



Percentage of Cows giving Different 



Percentage 

 of Fat 

 in Milk 



Qualities of Milk — continued 



Among 



2026 



Dutch 



Cows 



12-09 

 15-45 

 11-50 



9-58 



7-89 



4-68 



2-96 



2-07 



1-08 

 -54 

 •20 



•24 



These figures stand out more clearly when expressed 

 diagrammatically, as on the following page, 



A feature brought out by the diagram is that, 

 while the Ayrshire and Red Danish breeds contain a 

 considerable number of cows giving milk over the 

 4 per cent, standard, few such cows are found in the 

 Dutch breeds. Clearly the former breeds carry factors 



