FEEDING OF ANIMALS. 



317 



food would be very much greater than that indicated in the . 

 table as existing as nitrogenous substance in the milk. To 

 this point further reference will be made presently. 



We will next call attention to the amounts of food, and of Table 74 

 certain of its constituents, consumed for the production of a ex i> lmned - 

 given amount of milk. This point is illustrated in Table 74, 

 which shows the constituents consumed per 1000 lb. live- 

 weight per day, in the case of the Eothamsted herd, then of 

 30 cows, in the spring of 1884. 



TABLE 74. — Constituents consumed per 1000 lb. Live-Weight 

 per Day, for Sustenance and for Milk Production. The 

 Eothamsted Herd of 30 Cows, Spring 1884. 



PER 1000 lb. LIVE- WEIGHT. 



Wolff. 



lb. 

 24 



lb. 

 2.5 



lb. 

 12.5 2 



lb. 

 15.4 



1 Albuminoid ratio 1 — 4.4. 



2 Exclusive of 0.4 fat ; albuminoid ratio 1 — 5.4. 



On the left hand are shown the actual amounts of the 

 different foods consumed per 1000 lb. live-weight per day ; 

 and in the respective columns are recorded — first the amounts 

 of total dry substance which the foods contained, and then the 

 amounts of digestible nitrogenous, digestible non-nitrogenous 

 (reckoned as starch), and digestible total organic sub- 

 stance, which the different foods would supply; these being 

 calculated according to our own estimates of the percentage 

 composition of the foods, and to Wolffs estimates of the pro- 

 portion of the several constituents which would be digestible. 



