4G 



ones have been'selected, and their digestible nutrients ascertained. Too much 

 importaiK-e must not be attached to the composition of these rations, since, 

 in some cases, the quantities of feed given are simply approximations. How- 

 ever, the rations are sufficiently definite to be of interest and value to the 

 careful student. 



For convenience of reference, the German and American standard rations 

 for dairy cows are placed at the head of the list. It must be borne in mind 

 that these standards present the amounts of organic matter and of digestible 

 nutrients required per 1,000 lbs. live weight of the animal, and that the term 

 " total organic matter " means the total amount of dry matter furnished in 

 the ration, including both tjae digestible and indigestible constituents of the food. 



The constituents of the rations analysed below have all been calculated 

 per 1,000 lbs. live weight of cows, and the number opposite each ration corres- 

 ponds with its number in the report, so that it can readily be referred to. 



Table showing Constituents of some Ontario Rations for Dairy Cows. 



