244 DAIRYIJiTG. 



every-day conditions and in surroundings familiar to the animals. 

 The former objection would be removed by taking into ac- 

 count the dry matter in the food eaten, as shown by chemical 

 analysis. (See also Wisconsin Exp. Station, Research bull. 

 No. 26, pp. 78-80.) 



BUYING AND SELLING COWS BY TESTS OF THEIK 



MILK. (E.MKRY.) 



The money value of a cow may be estimated by multi- 

 plying the number of gallons of milk which the cow gives 

 by 12, adding to or subtracting from this product one dollar 

 for every one fourth per cent of fat in the milk above or 

 below 3.5 per cent. 



., , pounds of milk per dav , , 



Value =— — ^-— '- X 12 -[-4 (per cent fat -q.s». 



(See Bull. No. 113, N. C. Exp. Station.) 



FIFTY' DAIRY' RULES. 



(U. S. DiiPARTMENT OF A(.I<ICUI.TU1<E.) 



The Owner and his Helpers. — i. Read current dairy liter- 

 ature and keep posted on new ideas. 



2. Observe and enforce the utmost cleanliness about the 

 cattle, their attendants, the stable, the dairy, and all uten- 

 sils. 



3. A person suffering from any disease, or who has been 

 exposed to a contagious disease, must remain away from 

 the cows and the milk. 



The Stable. — 4. Keep dairy cattle in a room or building 

 by themselves. It is preferable to have no cellar below and 

 no storage loft above. 



5. Stables should be well ventilated, lighted, and drained; 

 should have tight floors and walls and be plainly con- 

 structed. 



6. Never use musty or dirty litter. 



7. Allow no strong-smelling material in the stable for any 

 length of time. Store the manure under cover outside the 



