Danish Pig-feeding Experiments. 



595 



897. Grain compared with boiled potatoes. Three series of ex- 

 periments 1 were made to test the comparative value of cooked 

 potatoes with grain, when both were fed in connection with skim 

 milk or whey. Four pounds of potatoes were fed against one 

 pound of grain, and the gains made were practically the same. 

 Four pounds of boiled potatoes should thus be considered equal 

 to one pound of grain in pig feeding. The quality of the pork 

 produced from potato feeding was good and did not differ appre- 

 ciably from that of lots differently fed. 



898. Comparative feeding value of mangels 2 and grain. 3 For 

 the purpose of determining the comparative value of mangels and 

 grain as feeds for pigs the trials reported below were conducted. 

 All lots received skim milk or whey in addition to the grain and 

 roots, except Lots E and F, to which an equivalent of additional 

 roots was given. The average daily gains are shown below: 



Average daily gain of pigs fed grain and mangels Copenhagen 



Station. 



The above shows that ten pounds of mangels were more than 

 equal, and eight pounds about equal, to one pound of grain in 

 these trials. 



The quality of the pork produced by the different lots was very 

 satisfactory 5 even where one-fourth of the daily feed was given 

 in the form of roots, no deleterious effect was noticed. (3J8) 



899. Grain compared with beets of different sugar content. A 

 preliminary feeding experiment 4 with beets of different sugar con- 

 tent was made in 1890 to ascertain their comparative feeding val- 

 ues. Mangels containing 12.71 per cent, dry matter and 8.93 per 



1 Rept. 19, 1890. 



2 In the Danish experiments all roots were fed uncooked, unless other- 

 wise noted, and either whole or sliced, generally the latter. (316, 658, 

 866) 



3 Rept. 1890. * Rept. 26, 1892. 



