AUTHOR'S METHOD OF FEEDING 



157 



For pigs that are being developed for breeding pur- 

 poses the water curve should run during the same time 

 from 13 pounds to about 9 pounds, as shown in the cut 

 inserted below. After this it should remain about con- 

 stant. 



CUT 19A. WATER REQUIREMENT OF BREEDING PIGS. 



By giving the pigs dry feed or a thick slop and then free 

 access to water they do not do as well as in cases where 

 the specified quantities of water are mixed with most of 

 the dry feeds in the form of slop. During the cold 

 weather of winter the pig under such conditions will not 

 drink enough and during the hot weather of summer it 

 might even drink too much, but the latter is the lesser 

 of the two evils. 



While the pig requires certain definite quantities of 

 water, as already outlined, when fed the required amounts 

 of other digestible nutrients, it may, under other sys- 

 tems of feeding, require different quantities of water, in 

 accordance with the manner of feeding. It has been 

 found that when a pig is fed large quantities of protein 

 it also needs large quantities of water. The water ap- 

 parently is necessary in protein metabolism as well as to 

 excrete the waste products. 



Protein Requirement. The following cut shows the 

 amount of digestible crude protein required by market 

 pigs daily per 100 pounds live weight, for maximum and 

 most economical production. The curve starts at .6 



