44 



MANUAL OF MILK PRODUCTS 



Name of Breed 



Holstein-Friesian 

 Ayrshire . . . 

 American Holderness 

 Shorthorn . . . 

 Devon .... 

 Guernsey . . . 

 Jersey . . . 



Per Cent of Fat in Milk 



Average 



Lowest 



Highest 



3.36 



2.88 



3.85 



3.60 



3.20 



4.24 



3.73 



3.49 



3.92 



4.44 



4.28 



4.56 



4.60 



4.30 



5.23 



5.30 



4.51 



6.13 



5.60 



4.96 



6.09 



The following, compiled by Wing from a large number of 

 analyses made at various American Agricultural Experiment 

 Stations, will give a general idea of the average composition 

 of the milk of the more common breeds, so far as it relates to 

 total solids and fat : 



Influence of Bkeed on Solids and Fat in Milk 



Solids 



Fat 



Jersey . . . 

 Guernsey . . , 

 Devon . . . . 

 Shorthorn . . , 

 Ayrshire . . , 

 Holstein-Friesian 



14.70 



5.35 



14.71 



5.16 



14.50 



4.60 



13.38 



4.05 



12.61 



3.66 



11.85 



3.42 



Influence of individuality of cow. 



While there is great difference in the average fat-content of 

 milk from the different breeds, there is also wide variation in 

 the individual animals within any given breed. It would be 

 difficult to find two cows in any breed whose milk contained 

 the same percentage of fat ; in fact, the variations between 

 individual cows in a breed are likely to be as great as the average 



