14 



oats and of soja bean have served as the principle coarse fodder for 

 milk production, from the middle of June to the beginning of 

 September. 



5. Average Quaktity of Milk Per Day. (Quarts.) 



An examination of the above statements concerning the daily 

 average j'ield of milk of the different cows on trial during the differ- 

 ent feeding periods shows, almost without an exception, that our 

 changes in the coarse fodder constituents of the daily diet have affected 

 the results more seriously than our changes in the grain feed portion. 

 Among the coarse feed constituents used, ranks first mixed ensilage 

 with rowen, (Period IV, V) ; then rowen (I, II, III, VIII, IX), and 

 dry corn stover last, (VI, VII) as far as the daily yield of milk is 

 concerned. 



The difference noticeable in the daily average yield of milk in case 

 of rowen as compared with corn stover, does in no instance deprive 

 the latter of the claim to be the cheaper coarse fodder article of the 

 two in our trial. Mixed ensilage with rowen — in place of corn 

 stover, on the other hand, has raised in some instances the daily 

 yield of milk more than three quarts (Pearl and Buttercup) ; allowing 

 three cents per quart of milk makes the former the cheaper coarse 

 fodder article of the two under otherwise corresponding circum- 

 stances. These results are noticeable without reference to the 

 particular combination of grain feed rations used in either case. 



The influence of the various grain feed rations on the yield of milk 

 in case of the same kind of coarse fodder ration is apparently, to a 

 considerable degree, depending on the individual disposition of the 

 ammal on trial. Cotton seed meal containing grain feed rations give 

 in five out of six cases better results when fed with rowen than either 

 gluten meal or old process linseed meal ration under otherwise cor- 

 responding conditions ; gluten meal and cotton seed meal did equally 

 well when fed with either mixed ensilage or corn stover. Old pro- 



