PRINCIPLES OF STOCK FEEDING 



65 



and observations they have developed 

 tables of feeding standards. These 

 standards show approximately the total 

 amount of dry matter which the differ- 

 ent classes of animals require each day 

 for maintenance, for growth, fattening, 

 work or milk production and how much 



of the dry matter fed should consist of 

 digestible protein, how much of digest- 

 ible fat, and how much of digestible 

 carbohydrates. 



These standards, as devised by Wolff 

 and modified by Lehmann, are shown in 

 the table herewith : 



WOLFF-LEHMANN FEEDING STANDARDS 



[Showing amounts of nutrients per 1,000 pounds live weight for a day 



Total i Digestible nutrients — 



dry Carbo- 



Animal matter Protein hydrates Fat 



Oxen : Pounds Pounds Pounds Pounds 



At rest in stall IS 0.7 8.0 0.1 



At light work 22 1.4 10.0 0.3 



At medium work 25 2.0 11.5 0.5 



At heavy work 28 2.8 13.0 0.8 



Fattening cattle : 



First period 30 2.5 15.0 0.5 



Second period 30 3.0 14.5 0.7 



Third period 26 2.7 15.0 0.7 



Milch cows : 



Giving 11 pounds milk a day 25 1.6 10.0 0.3 



Giving 16% pounds milk a day ...27 2.0 11.0 0.4 



Giving 22 pounds milk a day 29 2.5 13.0 0.5 



Giving 27V 2 pounds milk a day 32 3.3 13.0 0.8 



Sheep : 



Coarse wool 20 1.2 10.5 0.2 



Fine wool 23 1.5 12.0 0.3 



Breeding ewes, with lambs 25 2.9 15.0 0.5 



Fattening sheep : 



First period 30 3.0 15.0 0.5 



Second period 28 3.5 14.5 0.6 



Horses : 



Light work 20 1.5 9.5 0.4 



Medium work 24 2.0 11.0 0.6 



Heavy work 26 2.5 13.3 0.8 



Brood sows 22 2.5 15.5 0.4 



Fattening swine : 



First period 36 4.5 25.0 0.7 



Second period 32 4.0 24.0 0.5 



Third period 25 2.7 18.0 0.4 



Growing cattle : 



Dairy breeds — 



2 to 3 months old, weighing 



about 150 pounds 23 4.0 13.0 2.0 



3 to 6 months old, weighing 



about 300 pounds 24 3.0 12.8 1.0 



6 to 12 months old, weighing 



about 500 pounds 27 2.0 12.5 0.5 



12 to 18 months old, weighing 



about 700 pounds 26 1.8 12.5 0.4 



18 to 24 months old, weighing 



about 900 pounds 26 1.5 12.0 0.3 



Beef breeds — 



2 to 3 months old, weighing 



about 160 pounds 23 4.2 13.0 2.0 



3 to 6 months old, weighing 



about 330 pounds 24 3.5 12.8 1.5 



6 to 12 months old, weighing 



about 550 pounds 25 2.5 13.2 0.7 



12 to 18 months old, weighing 



about 750 pounds 24 2.0 12.5 0.5 



18 to 24 months old, weighing 



about 950 pounds 24 1.8 12.0 0.4 



Growing sheep : 

 Wool breeds — 



4 to 6 months old, weighing 



about 60 pounds 25 3.4 15.4 0.7 



6 to 8 months old, weighing 



about 75 pounds 25 2.8 13.8 0.6 



s feeding.] 



Fuel 

 value 

 Calories 

 16,600 

 22,500 

 27,200 

 32,755 



34,650 

 35,500 

 35,900 



22,850 

 25,850 

 30,950 

 33,700 



22,600 

 26,400 

 35,400 



35,600 

 36,000 



22,150 

 26,700 

 32,750 

 35,170 



57.S00 

 54,200 

 40,200 



40,050 

 33,600 

 29,100 

 28,300 

 26,350 



40,450 

 36,650 

 32,150 

 29,100 

 27,350 



37,900 

 33,400 



