718 EXPERIMENT STATION RECORD. 



The author summarizes the results of these experiments aud similar 

 experiments previously made at the station as follows: 



Food consumed per 100 lbs. of gain in live weight in experiments witli pigs. 



Pounds. 



Grain ouly 506 



1 11). corn meal to 1-3 lbs. skim milk : 



Corn meal 321 



Skim milk 585 



1 lb. corn meal to 3-5 lbs. skim milk : 



Corn meal 265 



Skim milk 1,048 



1 lb. corn meal to 5-7 lbs. corn meal : 



Corn meal 250 



Skim milk 1, 434 



1 lb. corn meal to 7-9 lbs. skim milk : 



Corn meal 207 



Skim milk 1,616 



"In the above we note that the largest saving of grain with a given amonnt of 

 milk is effected where from 1 to 3 lbs. of milk are fed with each ponnd of corn meal; 

 when larger amonnts of milk are fed with the meal the milk appears relatively less 

 valnable. The average of all trials shows that when feeding skim milk with corn 

 meal 462 lbs. of milk effects a saving of 100 lbs. of meal." 



On the basis of the corn saved when skim milk was fed, the author 

 computes the value of skim milk when corn is valued at from $10 to 

 $30 per ton. The maximum, mininnun, and average value of skim 

 milk on such a basis is shown in the following table: 



Tahle shoiving the value of shim milk for jfig feeding along with corn at different prices for 



the corn. 



Value of corn. 



$10 per ton (28 cts. per bushel) . . 

 $12 ])er Ion (33.6 cts. per bushel) 

 $14 per ton (39.2 cts. per bushel) 

 $16 per ton (44.8 cts. per husliel) 

 $18 per ton (50.4 cts. per bushel) 

 $20 per ton (56 cts. per bushel) . . 

 $30 per ton (84 cts. per bushel) . . 



Value of 100 lbs. of skim milk. 



In the author's opinion, skim milk, besides being an economical addi- 

 tion to a ration, improves its quality. 



The need of securing- skim milk of uniform quality aud in clean 

 vessels is insisted upon. 



The influence of fine gravel upon the digestibility of millet by 

 hens, J. KaluGtIN [Selsl-oye Khosyaistvo e Lyesovodstroj 1896, Xo. 10; 

 ahs. in FdhUmJs landio. Ztg., 46 {1897), No. 3, pp. .S'5, .sy;).— The author 

 briefly reports an experiment of 3 periods with hens to test the effect 

 of fine gravel upon the digestibility of millet. In 2 periods fine gravel 

 was fed with the millet, and in 1 period it was omitted and powdered 

 coal given instead. The conclusion ivas reached that fine gravel and 



