THIRTY-SEVENTH ANNUAL CONVENTION. 



323 



The carbohydrate is a little low, but the protein and fat are 

 both high, making the total digestible nutrients in this ration in 

 excess of the requirement.. 



TABLE 10. — Pounds and Acreage of Crops for the Winter Six Months. 



FEED 



Pounds 



Days 



Pounds 



Acres Acres 65 



Act s 



Fed 



Fed 



per cow 



per cow cows 



Available 



Surplus 

 or shortage 



Corn silage 



40 



Corn meal 2 



Oats 1.5 



Alfalfa (14 



..•• ( 6 



Total acres re- 

 quired for win- 

 ter six months .... 



153 



6120+5 

 % waste 



.27 



17.55 



17-55 



183 



366 



.12 



7.8 



7.45 



153 



229 



.14 



9.1 



9.9 



153 



2142 









30 



180 



.29 



18.85 



19. 



.82 



53.30 



35 



15 



Since it requires 1.32 acres to support a cow the summer 

 six months and .82 acres the winter six months, it requires 2.14 

 acres to support a cow a year, and 138.7 acres will support a 

 herd of 65 cows. 



A herd of this size would require two bulls, and an average 

 of 9 heifers must be raised each year to replenish the herd. 

 There could then be supported by this system 54 milch cows pro- 

 ducing an average of 6000 pounds of milk per year, or a total of 

 324,000 pounds for the farm averaging 2025 pounds of milk per 

 acre. 



SYSTEM NO. 4, 84 COWS, 3150 POUNDS OF MILK PER ACRE. 



The only crops raised in this system are corn and alfalfa 

 with rye as 2 v. ch crop for pasture, there being 95 acres of 

 corn and 57 acres of alfalfa. The yards into which the cows 

 are turned are included in the four acres allowed for buildings 

 and yards. 



Six 1 300-pound horses will be required to do the work 

 under this system. If each horse is fed a daily ration composed of 



