206 SWINE IN AMERICA 



thriftier condition of the pigs and possibly to the effect 

 of grading up by the use of good sires. 



These experiments carry the pig from the time it 

 weighs from 40 to 50 pounds until it weighs from 80 to 

 170 pounds, depending on the percentage of grain fed. 

 They give no indication of the cost of producing a 50- 

 pound pig nor the cost of finishing the hogs for market. 



Studying the effect of a medium grain ration on the 

 cost of pork, the treatment of Lot 26 furnishes interest- 

 ing data. 



Lot 26, consisting of 30 pigs, was fed in Experiment 

 No. 3 from July 28 to October 20, 1906, on a 2 per cent 

 grain ration consisting of three-fourths corn and one- 

 fourth shorts. This constituted Period i of Experi- 

 ment No. 3. 



During Period 2, from October 20. 1906, to March 

 2, 1907, they received 2 per cent shelled corn, except 

 during the first 20 days of this period, when they re- 

 ceived 231 pounds of shorts, which is counted as corn. 



During Period 3. from March 2 to April 13, 1907, 

 they received 3 per cent shelled corn and reached a 

 weight of 215 pounds, or approximately the selling 

 weights of Lots 22, 23 and 24. 



During Period i they ran on alfalfa pasture. Dur- 

 ing Periods 2 and 3 they pastured upon a field of win- 

 ter rye and received alfalfa hay. 



Experiment No. 5. — This included three tests of keep- 

 ing hogs on alfalfa without grain. Lot 4 was composed 

 of 14 hogs that were over a year old but light in weight 

 and thin in flesh. Thcv were grown on alfalfa, with a 

 very light grain ration. It will be noted that during 



