182 GUIDE TO DAIRYING IN SOUTH AFRICA 



Therefore a cow weighing 1000 Ibs. and giving 

 25 Ibs. average quality milk daily will need 



Suppose we have cow-pea hay, corn, stover, 

 mealies, and barley on hand, and have to supply 

 as near as possible the above nutrients ; as the 

 cow is doing medium work we should supply about 

 a third of the nutrients from the grain feeds, hence 

 we take 



With the aid of " Feeders' Guide to Rations " as 

 tabulated here, one is able to feed very economically, 

 i.e. without undue waste of protein, the expensive 

 item of feeds. 



In making up a ration consideration must also 

 be given to the fact that the cow has to give 

 nourishment to the calf she is carrying, and also the 



