1910.] 



PUBLIC DOCUMENT — No. 31. 



93 



{b) Depression noted (Grams). 



Molasses constituted 20 per cent, of the dry matter of the total 

 ration ; the nutritive ratio of the hay-corn-meal ration was 

 1 : 17.9, and of the hay-corn-meal-molasses ration 1 : 18.4.^ The 

 depression was very noticeable, being 18 grains of dry matter 

 and 17 grains of organic matter per 100 grams of molasses. 



C. Hay, Gluten Feed and Molasses. 



Numerous experiments were carried out to note the effect of 

 diiferent amounts of molasses upon a combination of hay and 

 gluten feed, the latter being a rich protein concentrate. Hay, 

 gluten feed and molasses is a much more suitable ration than 

 is one composed only of hay and molasses, or of hay, corn meal 

 and molasses. 



In calculating the depression caused by the molasses, the 

 digestibility of the hay-gluten-feed ration was first determined. 

 The amount of molasses fed was assumed to be all digested and 

 was deducted from the total amount digested of the hay-gluten- 

 feed-molasses ration, the remainder being the hay and gluten 

 feed digested when fed with the molasses. The diiference be- 

 tween the hay-gluten-feed digested when fed without the molasses 



1 A new lot of hay was used in this experiment; it contained only 7.19 per cent, of pro- 

 tein, as against 12.24 per cent, in the hay used to secure the coefficients for the digestibility 

 of the hay and corn meal, and which were applied to the hay corn meal and 100 grams 

 molasses ration. The low protein content of the hay accounts for the very wide nutritive 

 ratio of the present hay-corn-mealniolasses ration. The coefficients of the hay-corn-meal 

 ration, applied in case of the present experiment, were those obtained with the hay having 

 tlic high protein content. Had an experiment been made with the low protein hay-corn- 

 meal ration it is possible the coefficients might have been lower tlian tiie ones actually used, 

 in which case a less depression wou'.d have been obtained than the one actually found. 



