534 Feeds and Feeding. 



the effects of the molasses. Buffum and Griffith of the Colorado 

 Station^ found that sugar beets, fed alone, rather more than main- 

 tained pigs. When fed with equal parts of wheat and barley, sugar 

 beets and sugar-beet pulp proved equally valuable. (275) 



874. Danish studies with roots. — The Danish (Copenhagen) Ex- 

 periment Station,^ in trials with 204 pigs fed whole or sliced roots 

 in combination with skim milk, whey, and grain, found that 1 lb. 

 of ground barley was equal in feeding value to : 



Dry matter Sugar 



7. 5 lbs. mangel beets containing 11. per ct. 6. 7 per ct. 



6. 5 lbs. mangel beets containing 13. 6 per ct. 8. 9 per ct. 



5. lbs. fodder beets containing 16. 5 per ct. 10. 9 per ct. 



4. Ibb. sugar beets containing 21. 2 per ct. 14. per ct. 



Thus it is shown that 7.5 lbs. of mangels or 4 lbs. of sugar beets 

 are as useful in pig feeding as 1 lb. of ground barley, when all are 

 combined with dairy waste products. Carrots proved as valuable 

 as beets when measured by the dry substance contained. Since roots 

 are almost wholly digestible, their relative feeding value depends 

 upon the total dry matter they contain, rather than the variety or 

 kind. The extensive and successful use of roots by the Danes for 

 pork production should be copied by American farmers in many 

 eases, for adding variety to the ration, maintaining the health of 

 the animals, inducing a heavier consumption of feed, and for pro- 

 ducing pork of high quality. 



875. Potatoes. — In two trials by the author at the Wisconsin Sta- 

 tion^ potatoes were cooked in an open kettle, using as little water 

 as possible, and corn meal added to form a thick mush which was 

 eaten by pigs with great relish. Corn meal wet with water was fed 

 to a second lot for comparison. The results were as follows : 



440 lbs. of corn meal, fed alone, produced 100 lbs. of gain. 

 262 lbs. of corn meal with 786 lbs. of potatoes, weighed before cook- 

 ing, produced 100 lbs. of gain. 



From this we learn that 786 lbs. of potatoes, when fed to pigs after 

 being cooked, effected a saving of 178 lbs. of corn meal, 442 lbs. of 

 potatoes taking the place of 100 lbs. of corn meal. 



At the Copenhagen Station* Fjord found 400 lbs. of cooked pota- 

 toes equal to 100 lbs. of mixed grains for swine. Since corn has a 

 somewhat higher feeding value than the grains used by Fjord, it is 

 fair to hold that 4.5 bu. (of 60 lbs. each) of potatoes after cooking 



^ Bui. 74. = Rpt. 26, 1892. ^ Ept. 1890. *Ept. 19, 1890 



