416 COMPUTING THE RATION FOR FARM ANIMALS 



Proteid requirements 



From the results of a considerable number of fattening experi- 

 ments with cattle, Armsby has formulated the approximate proteid 

 requirements, comparing them with those for growth formulated by 

 Kellner ; and these are here followed by proteid requirements of sheep 

 and swine : — 



Approximate proteid requirements, in pounds, of cattle, per 1000 pounds live 



weight 



American Results 



Age 1 month 4.80 



Age 2 months 4.00 



Age 3 months 3.50 



Age 1-1 H years 2.00 



Age 2 years 1-75 



Age 214 years 1.50 



German Results (Kellner) 



Age 2-3 months . 

 Age 3-6 months . 

 Age 6-12 months. 

 Age 1-1 J^ years . 

 Age 1-13^-2 years 



Lb. 

 4.50 

 3.50 

 2.80 

 2.20 

 1.50 



Mature, fattening 1.60 



Proteid requirements for sheep, per 1000 pounds live weight (Kellner) 



Age 5- 6 months 

 Age 6- 8 months 

 Age 8-11 months 

 Age 11-15 months 

 Age 15-20 months 



Mutton Breeds 



Lb. 



4.5 

 3.5 

 2.5 

 2.0 

 1.5 



Proteid requirements of swine, per 1000 pounds live weight (Kellner) 



