Summer Feeding of the Breeding Herd 125 



fall is perhaps subject to more fluctuation than is the cost 

 at any other season of the year. This is due to the wide 

 difference in the types of management employed in feeding 

 the sows and the variation in the value and price of 

 pasture land in the different sections of the country. 



The feed costs as estimated in the following tables are 

 confessedly approximations. The effort is to represent 

 the cost under different conditions by making three 

 separate sets of calculations. The ability of the sow to 

 make the proper gain during the 126 days of the breeding 

 and gestation periods under the different conditions shown 

 in I, II, and III is the point in the determination about 

 which it is impossible to obtain any very definite figures. 



Table XXVIII. — Cost op Summer Feeding Mature Bred 

 Sows TO Time of Farrowing 



' 1 cent, 1} cents, IJ cents, Ij cents, 2 cents, and 2J cents a pound are equivalent, 

 respectively, to 56 cents, 70 cents, 84 cents, 98 cents, $1 .12, and $1.40 a bushel for com. 

 * This represents cost of crops, including rent. 



