143 



interval, the quantity of milk is decreased, but the fat content ia 

 increased. Conversely, after the longer interval the quantity is 

 increased, but the fat content decreased. 



EXPERIMENTS IN ECONOMY OF PRODUCTION OF MILK 

 AND COST OF FEEDING. 



These two lines of work are so bound up with one another that 

 it is impossible to properly deal with on# without dealing with the 

 other. 



In these experiments the following matters were taken into 

 consideration and careful records kept with relation thereto: 



1. Quality and quantity of milk produced during period of 

 lactation. 



2. Length of lactation period. 



3. 'Value of products at current market prices. 



4. Amounts of feed (roughage and concentrates) consumed. 



5. Total cost of feeding. 



6. Profit per cow. 



The cost of the feeding stuffs was always fixed according to the 

 price of the articles on the market in the case of purchasable feeds; 

 in the case of ensilage and roots, $2 a ton was allowed, this being 

 the usual charge for such feeds in experimental work in Canada 

 and the United States. 



FINDINGS. 



Summarizing the experiments along the above lines, it may be 

 said that our work would seem to show: 



That cheap milk production is assured by the choice of succulent 

 or juicy foods, such as mangels, sugar beets and ensilage, and nitro- 

 genous or flesh and milk-forming foods such as clover and alfalfa 

 hay, bran, oats and oil meal. 



That best returns come from well bred stock in well-lighted, 

 well-ventilated and comfortably bedded stables. 



That the cost of feeding should be carefully studied, as the 

 experience gained at the Central Experimental Farm shows that 

 savings or improvements arc* frequently possible, individuals being 

 often fed too heavy or too light a ration for the milk being produced 

 in a given time. 



