326 Pork Production 



The pigs were well grown and made unusually rapid 

 gains considering that neither ration contained a protein 

 supplement. In these experiments, 788 pounds of cooked 

 potatoes had the effect of saving an average of 177 pounds 

 of corn-meal, although reducing slightly the rate of gain. 

 This would indicate that 445 pounds of cooked potatoes 

 were equivalent in value to 100 pounds of corn-meal. 

 The summarized results of all experiments made at 

 Copenhagen (Denmark) Station by Fjord, and reported 

 by Henry and Morrison,^ gave 400 pounds of cooked pota- 

 toes the value of 100 pounds of mixed grain. Grisdale ^ 

 reports a fair (quality of bacon produced from a ration of 

 100 pounds of cooked potatoes with 20 pounds of meal. 



Other roots. 



Sugar-beets and mangels are considered the best roots 

 for swine-feeding in Canada and the western states. 

 Grisdale^ concludes that carrots are not as palatable 

 nor as good keepers as mangels or suger-beets. Sugar- 

 beets are more palatable than mangels, although the 

 latter are especially recommended for brood sows. A 

 good quality of bacon is produced on rations containing 

 roots. Clark' at the Montana Experiment Station 

 found that pigs refused to eat turnips and rutabagas 

 when fed raw. French * of the Oregon station found that 

 162-pound pigs failed to gain when grazed on artichokes 

 and given no other feed. When the pigs were given a 

 ration of ground wheat and oats, however, they made 

 an average daily gain of .81 pound with an expenditure 

 of 310 pounds of grain for each 100 pounds of gain made. 



> "Feeds and Feeding," 1915. 



2 Ottawa Exp. Farms, Bull. 51. 



' BuU. 27. * Ibid., 54. 



