TEE PRODUCTS OF THE DAIRY. 



185 



table of averages, the result of experiments conducted 

 at the New Jersey Experiment Station, with representa- 

 tives of the leading dairy breeds, shows their relative 

 yields, and the composition of the milk : 

 Average Yield and Composition of Milk of Different Breeds. 



While these results are not absolute, it is evident that 

 there is a distinct classification of breeds based upon the 

 relative yield and quality of milk. The milk from animals 

 which naturally produce large quantities shows average 

 quality, and that from animals which produce a smaller 

 quantity shows a quality considerably above the average. 

 That the content of fat in milk varies more than the 

 other constituents is also distinctly shown in this work. 

 The variations in the composition of milk, due to breed, 

 is, therefore, important in indicating the animals best 

 adapted for the production of a specific dairy product. 



The Age and Health of the Animal also affect 

 the composition of milk. As a general rule, the milk of 

 young animals is richer than that of old ; this is not 

 positive, however, since much depends upon the vitality, 

 vigor, health, and management of the animals. 



