AGRICULTURAL EXPERIMENT STATION. 59 



In this second experiment, which was made in the spring of 

 1891, two colts were used. No. 1 was a grade Percheron filly eleven 

 months old, and No. 2 was a grade Percheron gelding eleven months 

 old. 



They were fed through two periods on the following rations : 



fcoiti,! 1 ^^- 11 ^: . . 



Period 1 J I 6 lbS - giam mixture - 



1 coit 2 J 101bs - ha y- 



^ ' ( 5 lbs. grain mixture. 



fcwti,J 1 ?£ B - ha y- 



-r, . , (7 lbs. oats. 



Period 2,^ inl , , 



I Colt 2, l 10 p ^ ha f 

 L ' I G lbs. oats. 



The grain mixture consisted of middlings, gluten meal and 

 linseed meal compounded in the ratio of 60, 35 and 15. The 

 average daily cost of the ration in Period 1 was about 12 cents, 

 and in Period 2 about 14 cents, a difference of two cents per day 

 for each animal. 



The feeding began on March 12th, and the animals were first 

 weighed on March 17th and 18th. Period 1 continued 43 days, 

 and Period 2, 41 days. 



The colts were tied in stalls and were given free exercise in a 

 large yard during all pleasant weather. So far as could be deter- 

 mined, no unfavorable conditions entered into the experiment. 



The results are stated below : 



Colt No. 1. Colt No. 2. 



Weight of colts at end of Period 1 776 lbs. 652 lbs. 



Weight of colts at beginning of Period 1 711 " (502 " 



Gain in weight in 43 days 65 lbs. 50 lbs. 



Daily gain on mixed grains 1.51 lbs. 1.16 lbs. 



Weight of colts at end of Period 2 794 lbs. 690 lbs. 



Weight of colts at beginning of Period 2 776 " 652 " 



Gain in weight in 41 days 18 lbs. 38 lbs. 



Daily gain on oats 43 lbs. .93 lbs. 



A glance at the above data is sufficient to show the more rapid 

 growth on the mixed grain ration. Those who carefully consider 

 these figures may be inclined to remark that the difference in 

 growth caused by the two rations is too great and that some dis- 

 turbing factor must have entered, thus rendering the results 

 invalid. Certainly nothing of the kind was apparent, as before 

 remarked. 



In two tests of the relative growth produced in colts by 

 mixed grains and oats, the greater growth was obtained in 

 both instances from the mixed grains. 



