Feeding Expehiments. 



21 



cost of production. In this experiment, 312 pounds of screenings 

 replaced 420 pounds of the meal mixture, or, at the valuation of 

 $26 for the latter, the complete pulverized screenings, fed as one-third 

 of the grain ration, acquired a valine of $34 per ton. It must be remem- 

 bered that this deduction, while correct, is made from the results of 

 an experiment of very short duration, as will be discussed more fully. 



Table No. 2. — Dairy Cow Feeding Experiment No. 2. — Meal versus 

 Meal, 2 parts.; Pulverized Black Seeds, 1 part. 



Feeds. 



Meal. 



Period 

 1. 



Meal. 



Period 

 3. 



Meal. 



Meal 



AND Black 



Seeds. 



Average 

 Periods 

 1 and 3. 



Period 

 2. 



Number of cows in test No. 



Pounds of milk produced by 15 cows lb. 



Average milk per cow per day " 



Average per cent fat in milk % 



Total pounds fat produced by 15 cows lb. 



Average pounds fat per cow per day 



Total meal consumed 



Total hay consumed 



Total molasses consumed 



Total roots consumed 



Total ensilage consumed 



Mixture consumed per 100 pounds fat pro- 

 duced " 



Relative value for production of fat % 



Mixture consumed per 100 pounds milk 

 produced. lb. 



Beiative value for production of milk % 



Findings from Experiment. 



Cost of meal mixture fed $ 



Value of roughage fed $ 



Total cost of feed S 



Cost to produce 100 pounds fat t 



" "■ 1 pound fat $ 



" " 1 pound butter 9 



Profit on 1 pound butter at 30 cents per 



pound $ 



Cost to produce 100 pounds milk S 



Profit on 100 pounds milk at $1.70 per 



hundredweight. $ 



Total weight of cows for period lb. 



Gain for period " 



15 



2,227-6 



21-3 



3-9 



86-8 



■826 

 998 

 630 



1,'266 

 2,240 



1,149 



44-8 



12.97 



5.71- 



18.68 



21.52 



0.215 



0.18 



0.12 

 0.83 



0.87 

 15,670 



15 



2,293-5 



21-8 



3-6 



82-5 



•785 

 998 

 630 



1,'266 

 2,240 



1,209 



43-5 



12.97 



6.71 



18.68 



22.64 



0.226 



0.189 



0.111 

 0.81 



0.89 

 16,390 

 338 



2,260 



15 



5 

 21-5 

 3-75 

 84-8 



-807 

 998 

 630 



1,266 

 2,240 



1,179 

 100 



44-6 

 100 



12.97 



5.71 



18.68 



22.03 



0.22 



0.184 



0.116 

 0.827 



0.873 



2. 



15 

 080 

 19-8 

 3-6 

 74-9 



•713 

 868 

 630 



2,240 



1,169 

 101-5 



41^7 

 106-9 



8.10 

 5.71 

 13.81 

 18.44 

 0.184 

 0.154 



0.146 

 0.664 



1.036 

 16,052 

 382 



Z)e£?Mdions.^-The black seeds ration fed during one of the three 

 periods, the results of which are given ia the foregoing table, was 

 even more unpalatable than the screenings ration fed during Experi- 

 ment I, ground black seeds having an extremely bitter flavour and 

 being of a fine, dusty nature. One hundred and thirty pounds 



