174 SWINE 



ous feeds may be added to the ration by reading the quan- 

 tities of nutrients correctly with respect to the decimal 

 point. To get the nutrients for unit numbers of pounds 

 read direct as given in the table, for tenths of pounds read 

 with the decimal point one place to the left, and for ten 

 times unit numbers read with the decimal point one place 

 to the right. This simplifies matters by eliminating the 

 multiplications at each operation. The abbreviations at 

 the heads of the columns in the preceding tables stand 

 for the following: Wat., Water; Pro., Crude Protein; 

 Car., Carbohydrate; E. E., Ether Extract, and M. M., 

 Mineral Matter. 



Pigs two months old can use but a limited quantity of 

 a roughage like alfalfa ; .consequently in making up this 

 ration not much can be used at this time. Suppose that 

 corn and barley are to be used in the proportion of 2 parts 

 of corn to 1 part of barley, and that but a limited amount 

 of skim milk is at hand. In order to make up this ration, 

 then, the following is evolved : 



The total amount of nutrients required per day for the 

 bunch of pigs weighing 685 pounds, as determined above, 

 is as follows : 



Water. Protein. Carbohydrate. 

 82.2 4.11 15.07 



In order to get these quantities the following amounts 

 of feeds are necessary. These are obtained by first put- 

 ting down the desired amount of the roughage (alfalfa), 

 with its water, protein and carbohydrate; then the car- 

 bonaceous concentrates (corn and barley) and the skim 

 milk. Have enough of these so that the carbohydrate 

 when added will be nearly equal to the required quantity. 

 Next list the nitrogeneous concentrate (soy beans) in 

 sufficient amount to bring up the protein as well as the 



