176 AGRICULTURE 



separated milk at about id. a quart. On the 

 farm it is only valued at id. per gallon for 

 feeding young stock. 



skimmed milk Skimmed milk is preferred by many, owing 

 to the larger amount of fat which it contains, 

 but it is not so good for feeding owing to its 

 having developed a considerable quantity of 

 lactic acid. Sour milk causes diarrhoea and 

 derangement of the digestive system in young 

 stock. 



Butter-milk Butter-milk is an excellent food for pigs, 

 but as it is sour it is best not to give it to 

 calves. 



whey Whey is less valuable than separated milk 

 and buttermilk, as it has lost not only the 

 fat but a large proportion of the casein. 

 whey butter Whey butter. In cheesemaking districts 

 this is often made. The whey is allowed to 

 stand until all the fat has risen, and it is then 

 skimmed and made into butter in the ordinary 

 way. It is usually only made for home con- 

 sumption. 

 Milk sugar Milk sugar. At one time it was a difficult 





