FEEDING FARM ANIMALS 



up the maintenance requirements, or the amount of 

 digestible protein and net energy necessary for an 

 animal when making no growth or other produc- 

 tion, or when doing no work. Standards for swine 

 are not included, as no satisfactory figures are avail- 

 able. The maintenance standards suggested are as 

 follows : 



MAINTENANCE STANDARD FOR CATTLE, HORSES AND 

 SHEEP (ARMSBY) 



Requirements for Growth. Young animals con- 

 sume more food than adult animals in relation to the 

 weight of the body. They lay on much less fat and 

 carry much more water in their increase. As they 

 grow older and exercise more freely, additional sup- 

 plies of food are necessary for the production of heat 

 and mechanical work. These demands give rise to 

 a constantly changing balance of food nutrients. 

 The following estimates are for growing cattle and 

 sheep : 



