58<6 Feeds and Feeding. 



skim milk. The average gain for the animals in both lots was 

 exactly the same, viz., 1.13 pounds daily. 



The conclusion drawn is that one pound of separator skim milk 

 equals two pounds of whey obtained in the manufacture of cheese 

 from separator skim milk. Such whey is necessarily very free 

 from fat, and consequently has as low a feeding value as whey can 



These results were corroborated by similar experiments con- 

 ducted during 1887-88, as well as by still later trials. l 



The results of investigations at the Wisconsin Station and the 

 Ontario Agricultural College (873) show that whey has a higher 

 feeding value for pigs than is here reported. The reason for this 

 lies in the fact that in the American trials the whey contained 

 more fat and probably more casein than that fed at the Danish 

 Station. (359,660) 



888. Skim milk compared with grain. Centrifugal skim milk 

 was compared 2 with rye and barley, being first fed in the ratio of 

 5 pounds of milk to 1 of grain; in later experiments, 6 pounds 

 of milk to 1 of grain. Groups containing 175 pigs in all were 

 divided into 35 lots. The milk fed varied in amount as shown in 

 the table, which gives also the average grain consumed daily and 

 the gain made per animal. 



81dm, milk compared with barley and rye Copenhagen Station. 



It will be seen that greater gains were made where the quantity 

 of skim milk fed was decreased. The results show that 5 pounds 

 of milk could not replace 1 pound of grain, where rye or barley 

 was fed with the skim milk. In the second and third series of 

 trials 60 pigs were used in each series. When the allowance of 



1 Kept. 15, p. 88. 

 * Kept. 10, 1887. 



