SOME SCIENTIFIC TERMS IN FEEDING 61 
stances require. In fattening farm stock it is clearly the 
best sense to supply the largest amount of food that can 
be profitably used. In feeding dairy cows, so long as pas- 
ture, hay, fodder, and silage are home-raised and abun- 
dant, the cows may safely be given as much as they can be 
tempted to eat, provided of course, the concentrated feeds 
are not denied a proper place in the ration. Such cows 
WHEN NATURE BALANCES THE RATION 
On no kind of feed does animal life better flourish than on rich, luxuriant pasture 
grass. Jt is the first choice of big and little, old and young animals. 
as respond with heavy milk yields are entitled to the larg- 
est amount of the concentrates, while those that yield lit- 
tle milk will not require much if any grain. 
14, Size of animal_—tThe size of the animal also affects 
the consumption of food. A part of the demand for food is 
determined by the surface of the animal rather than by 
its weight. With these circumstances in mind as exam- 
ples of various factors that must be considered, the feed- 
ing standard may well be used as a starting point in the 
practical feeding of any class of live stock. 
