38 DAIRYING 



noticed the effect of continued hot weather in summer and a cold, 

 raw wind or storm at any season of the year on the milk supply 

 received at the factory. The loss on account of such exposure of 

 the cows can be more than saved by providing a shelter in the 

 pastures in summer and comfortable quarters in winter. Plumb 

 made a comparison from Jan. 27 to Mar. 10, of the amount of milk 

 obtained from six cows which were all given the same kind of feed, 

 and as much as they would eat of it. Three of the cows were kept 

 in a comfortable stable while three were left outside regardless of 

 the weather. The results showed that the cows in the comfortab'e 

 stable ate less feed, gained more in live weight and gave more 

 milk than the unsheltered cows. The financial results showed 

 $12.79, or $4.29 per cow in favor of the sheltered cows for this 

 short period of about six weeks. 



P. Stable Temperature 



194. The effect of keeping cows in a stable at a temperature of 

 55 degrees F. as compared with a temperature of 45 degrees F., and 

 tried at Wisconsin. Several trials were made with 12 and 6 cows 

 in different years. An increased yield of milk was noticed with 

 cows kept in the stable at 55 degrees F. during three trials, and 

 in the stable at 45 degrees F. during two trials. The average of 

 results, however, was in favor of the higher temperature. 



Brooks reports a trial made in Massachusetts with six cows 

 from Dec. 18 to Mar. 8, in which one lot of three cows was kept 

 in a stable heated by hot water pipes to a temperature of 55 de- 

 grees F., and the other lot in a stable not heated. He found but 

 little difference in the milk yield of the two lots, the increase not 

 being nearly enough to pay for the cost of heating the stable. 

 Cows need plenty of fresh air and they can stand a cool tempera- 

 ture without loss of milk, but protection from exposure to storms 

 and cold winds is always necessary as the food a good dairy cow 

 eats should be converted into milk and not into a layer of protective 

 fat on her ribs for the purpose of keeping her warm. 



Q. Changes in Stable Routine. 



195. The effect on their milk flow of feeding cows before, after 

 or during milking depends on the training or habit of the cows. 

 If accustomed to any one of these practices it is not advisable to 

 change. Emery, of North Carolina, reports a falling off in milk 



