218 



ILLINOIS STATE DAIRYMEN'S ASSOCIATION 



Table 5 — Feed Consumption and Gains for Scrub and Grade Calves 





O 



Average Daily Feed 



C* CD 



Average Feed for 100 

 lbs. gain 





Mj 



xsi ^n* 



.^2 



?« ^ 



H- f^ 



5^S 5=S? 5^^ 





P 



P^ 



. 5' 



• t^ 





V r: 5" 3 ?" .^ 





< 



CD 







• V- 





. ^ . B . B- 



Scrubs . . . 

 Grades . . . 



... 4 

 ... 3 



15.14 

 15.14 



2.45 

 4.17 



1.80 

 1.82 



1.12 

 1.61 



135.2 

 93.9 



21.9 

 25.9 



16.0 

 11.3 



While both lots consumed about the same amount of hay 

 the grades utilized much larger quantities of grain — their con- 

 sumption per head being about 70% more than that of the scrubs. 



Table 6 — Digestion of Feed by Calves 



Lot 



Dry 

 matter 



% 



Carbo- 

 hydrates 



% 



Fat 

 % 



Protein 

 % 



Fiber 

 % 



Ash 



% 



Scrubs . . 

 Grades . . 



....73.96 



....74.78 



81.91 

 81.37 



75.49 

 76.33 



78.22 

 82.10 



45.07 

 44.49 



50.85 

 53.12 



This table shows that the powers of the scrubs and grades 

 to digest the various food constituents are practically the same. 



At the end of this 196 day feeding trial these calves were 

 turned over to the Animal Husbandry section for a continuation 

 of the work and it is expected that a more detailed report will 

 be published later. 



Summary 



The results of the eight years' work as given in this pre- 

 liminary report may be summarized as follows: 



1. The scrub cows that came to the station^ when young 

 (four years old) increased in production rapidly and steadily 

 up to the fourth lactation period, after reaching the station, 

 when they produced 59% more milk and 54% more fat than 

 during the first period. 



2. The scrub cows that came to the station advanced in 

 age did not increase in production after the first year. How- 

 ever, it cannot be said that their production was not greater than 

 it had been under their original environment. 



