The Relation of Food to Milk-Fat. 83 



The feeding of the pahii nut meal began January 20, 1897, and 

 contmued for six weeks. During tliis time the ration of lot No. 1 

 remained constant, while that of lot No. 2 was increased as indi- 

 cated below. The daily rations were made up as follows: 



Lot No. 1 : 



Grain mixture 10 to 13 pounds. 



Palm nut meal 2 parts. 



Gluten feed 2 parts. 



Wheat bran 1 part. 



Corn silage 35 to 45 pounds. 



Mixed liay 10 to 13 pounds. 



Nutritive ratio 1:6. 



Calculating this ratio on the basis of 10 pounds of grain, 10 

 pounds of hay and 40 pounds of silage it would contain the follow- 

 ing number of pounds of digestible nutrients : Protein, 2.7 ; car- 

 bohydrates, 14.1 ; fat, .96, and 26 pounds of dry substance. 



Lot No. 2 : 



Grain mixture. 



Palm nut meal 4 parts. 



Gluten feed 3 parts. 



Cotton-seed meal 2 parts. 



Wheat bran 1 part. 



Corn silage 35 to 45 pounds. 



Mixed hay 7 to 10 pounds. 



The amount of course fodder given this lot did not vary materi- 

 ally during the whole experiment. The quantity of the grain mix- 

 ture fed was increased as follows : 



January, February, February, 



20-31. 1-6. 7-28. 



Mabel 7 8.5 10 



Ruby 10 12 14 



Sadie 10 12 14 



Calculating this ration according to the quantities eaten by Ruby 

 and Sadie, and considering the amount of silage and hay consumed 

 as 40 and 10 pounds respectively, we have the following amounts 

 of dry matter and the number of pounds of digestible nutrients 

 consumed daily during the different periods : 



