Feeding Dairy Cattle 145 
238. Food requirements for milk.— The quantity of food re- 
quired by a milking cow depends on many factors, the chief of 
which are the kind of food, the quantity of milk yielded, the quality 
of the milk, as well as the dye BEY, the weight, and the age 
of the animal. 
ARMSBY’S STANDARD SHOWING THE DIGESTIBLE PRoTEIN AND ENERGY 
REQUIRED FOR A 1000-Pounp Cow yYiELDING VARYING QUANTITIES or 
AVERAGE MILK 
Day Mix Yrevp SS es Henney Atoe, 
15 pounds of milk a @ 8 1.25 10.50 
20 pounds of milk rm 1.50 12.00 
25 pounds of milk : ed 1.75 13.50 
Harcksr’s STANDARD SHOWING Foop or MAINTENANCE PER 100 Pounps 
Live WEIGHT AND NUTRIENTS REQUIRED FOR THE PropvuctTIon or 1 
Pounp or MILK TESTING A GIVEN PER CENT OF Burrer-Fat ! 
PROTEIN CARBOHYDRATE Fat 
For maintenance . ... . 0.0700 0.700 . 0.0100 
Milk testing 2.5 . 0.0362 0.164 0.0124 
Milk testing 3.0 . . ‘ : 0.0397 0.181 0.0136 
Milk testing 4.0 Be ose 0.0467 0.214 0.0159 
Milk testing 5.0 : 0.0537 0.247 0.0182 
Milk testing 6.0 So % 0.0607 0.280 0.0206 
Milk testing 6.5 . . . 0.0642 0.296 0.0217 
1 Minnesota Agricultural Experiment Station Bulletin No. 79. 
EFFECT OF FOOD ON THE COMPOSITION OF THE MILK 
It is asserted that the food may affect the milk in many ways, 
the two most important being its composition and its flavor. 
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