ILLINOIS DAI HYMENS ASSOCIATION. 



309 



Table XX. — Weights of skim-milk calves at different ages. 



Number of Indi- 

 viduals consid 

 ered 



90 



—■ 



a 

 



e 



< 



r. 



3 - 

 © Tc 



1 J* 



Average 



Number of indi- 

 viduals consid. 

 ered 



r. 



~ 



if. 



-_ r. 



~ 



g be 



- 'I 



Average 



weight 



23 



Birth 



59-108 



77.0 



26 



6% mo. 



313-486 



369.8 



32 



y 2 n 



io. 66-112 



87.7 



38 



7 



288-461 



402.5 



45 



i 



70-154 



111.4 



25 



7y 2 " 



353-541 



486.0 



35 



iy 2 



77-149 



117.1 



28 



8 



332-507 



455.1 



56 



2 



88-199 



144.4 



20 



8% " 



394-600 



469.0 



36 



2% 



117-220 



152.6 



21 



9 



370-575 



514.8 



60 



3 



111-248 



181.3 



18 



9% " 



430-653 



515.4 



36 



3% 



135-275 



189.0 



20 



10 



427-645 



577.5 



60 



4 



148-290 



229.1 



17 



10% " 



420-747 



577.6- 



35 



4% ' 



189-346 



247.3 



20 



11 



444-730 



625.7 



54 



5 



183-363 



286.9 



16 



11% " 



452-773 



644.7 



28 



5% ' 



263-412 



309.3 



19 



12 



476-770 



669.4 



43 



6 



228-425 



349.4 











Weight of Skim-Milk Calf. 



The question is often asked as to how large a skim-milk 

 calf should be and what weight it should attain at different ages. 

 In order to give a satisfactory answer to this question, we have 

 averaged up the weights of a large number of skim-milk calves 

 that we have raised at this station. Table XX gives both the 

 range of variation and the average weights that have been ob- 

 tained at the ages mentioned. 



Cost of Raising a Skim-milk Calf. In order to deter- 

 mine what is the cost of raising a skim-milk calf, the different 

 experiments have been combined in the following table; charg- 

 ing fifteen cents per 100 for skim-milk, fifty cents per 100 for 

 grain, $4 per ton for roughness and ten cents per hour for labor : 



