Management and Feeding in Winter 



61 



one-half pound daily during the last three weeks, the 

 rate of gain will closely approximate that shown in the 

 diagram. 



The amount of concentrates necessary to secure this 

 ideal condition will vary chiefly with the kind of concen- 

 trates fed and the availability and quality of the hay, 

 grass, or other succulent feeds which may be supplied in 

 addition. It will also be influenced largely by the weather 

 and the type and disposition of the sows in the herd. 



In Table IX is the summarized record of the average 

 weight, the gains made, and the concentrates fed each 

 hundredweight for 101 mature sows, 40 yearling sows, 

 and 155 gilts. Most of the data on which these averages 

 are based have been reported previously in this chapter. 

 (See Tables III, IV, V, and VII.) In twelve of the nine- 

 teen rations fed these sows, alfalfa or clover hay was 

 given in addition to the concentrates. Most of the rations 

 fed were well balanced. 



Table IX. — Amount op Concentrates Fed Pregnant Sows 

 IN Winter 



These figures show that when mature sows have access 

 to alfalfa, a daily ration equal in amount of concentrates 

 to 1 per cent of their weight was approximately sufficient 



