156 



SWINE 



it can use the remainder for tissue building or for making 

 gains in live weight. 



REQUIREMENT OF NUTRIENTS. 



According to the author's system of feeding, the pig is 

 fed certain quantities of digestible nutrients per 100 

 pounds live weight daily as follows : 



CUT 19. WATER REQUIREMENT OF MARKET PIGS. 



Water Requirement. In the above cut as well as in 

 those on pages 157, 158, 159 and 160, the weeks are indi- 

 cated at the top. The second line shows that the pigs 

 are two months old at the beginning, the time at which 

 they are weaned. Thus the horizontal spaces represent 

 time; the vertical spaces as shown by the figures at the 

 left represent pounds. The value of the curve at any 

 particular age of the pig is obtained by taking the amount 

 in pounds, as indicated at the left, for the point at which 

 the curve crosses the vertical line indicating the age of 

 the pig. 



This cut shows the total amount of water required by 

 the growing and fattening. Starting at two months of 

 age it should have 13 pounds daily, including that of the 

 dry feeds, per hundred pounds live weight. This is grad- 

 ually reduced to 10 pounds at about five and one-half 

 months of age and then to 5 pounds at eight months of 

 age. 



