FIFTY-SECOND ANNUAL CONVENTION 219 



used, and any that is air-slacked should be discarded, as 

 whitewash made from such lime will not stick. 



Whitewash may be applied with a brush or with a 

 spray pump. It can be applied more heavily with a brush, 

 and sometimes one coat will give as good results as two 

 with the sprayer. Spraying, of course, is quicker, but 

 smears up the floor and equipment more than the brush 

 method. But no matter what method of application is used, 

 it will save time in cleaning/ if the equipment is covered 

 with old bags or similar material. If the floor is kept wet 

 while the whitewashing is in progress, the whitewash that 

 is dropped will not stick so tight but that it can be dislodged 

 readily with water and a brush or broom. 



Exercise 



Exercising cows by making them walk 3 miles a day 

 was found at the Beltsville station to cause a greater feed 

 consumption and a slightly higher percentage of fat in the 

 milk, but the quantity of milk remained about the same. 

 The extra feed consumed cost more than the increased 

 quantity of fat was worth. So far as production is con- 

 cerned, a cow needs no more exercise than she will get by 

 walking at will about a small yard. The writers know of 

 no experiment on the influence of exercise upon the health 

 that has been conducted over a long enough period to war- 

 rant any conclusions regarding it. 



It is thought good practice to let the cows out of the 

 stable at least once a day, even if this is not necessary for 

 the purpose of watering. The stables are more easily 

 cleaned and bedded when the cows are out, and opportunity 

 is afforded for convenient observation of any cows that may 

 be in heat. 



CLEANLINESS 



Grooming 



No dairyman should permit his cows to remain in a 

 dirty condition. Pride in his stock and stable should be 

 sufficient incentive to keep his cows and stable clean. 



