SCIENTIFIC SWINE FEEDING 



245 



2.4 pounds of digestible carbohydrates daily for every 100 

 pounds of live weight. After this as indicated by the line the 

 amount is gradually increased during the following eighteen 

 weeks when the amount is 2.8 pounds. The carbohydrate 

 line, as given, was most definitely worked out for the first 

 eighteen weeks of the feeding period. During the last eight 

 weeks the pigs are as a rule put on nearly full feed on a ration 

 that is primarily carbohydrate feeds. 



If pigs do not get enough exercise or are reduced in vitality 

 by inheritance or improper feeding they will not be able to take 

 the above-specified quantity of carbohydrate and should be fed 

 less. 



For Breeding Pigs. The pig that is being grown for breed- 

 ing purposes needs a smaller amount as shown in the following 

 figure. 



IU 11 \i 13 14 IB 16 17 IB 19129121 22 23 24 25 26 



FIG. 65. Carbohydrate requirement of breeding pigs. 



It is seen from this that the breeding pig gets somewhat less 

 carbohydrate than the market pig. While a breeding pig 

 should be in thrifty vigorous condition and carry considerable 

 fat it need not be so fat as a market hog. 



Perhaps the best guide as to the amount of carbohydrates 

 for mature hogs is the condition in which it is desired to keep 

 them. A brood sow, for instance, that has been much suckled 

 down can use a considerable quantity of this material until she 

 has reached a proper state of fatness. After this the quantity 

 must be reduced so as to prevent her becoming too fat. 



Neither a growing pig, a fattening hog, nor a mature hog 

 should ever be put on full feed. A pig should always leave 

 the trough with an appetite for more. 



A sufficient number of feeds should be used in the ration to 

 furnish variety. While a balanced ration could be made up, 



