DIVISION OF ANIMAL HUSBANDRY 



545 



SESSIONAL PAPER No. 16 



above mixture illustrates a rich meal, having a sufficient diversity in its elements to 

 give variety and palatability, thus maintaining the appetite of the animal. 



Water is before the cows all the time. Salt is added to the roughage at the 

 time of mixing. 



DAIRY CATTLE EXPERIMENTS. 



This work, including the conducting of the tests of foodstuffs for dairy cattle, 

 .the tost of the milking machine and the compiling of results from the same, has 

 been done by Mr. Eothwell, Assistant to the Animal Husbandman. 



Testing Molasses as a Feed for Dairy Cows. 



Beginning February 23, 1913, an experiment was conducted with the grade 

 herd to ascertain the value of molasses as a substitute for meal in the regular meal 

 mixture. During the test, each cow received the same number of pounds of meal or 

 meal and molasses, in order to show the value of molasses in replacing meal, by a 

 comparison of the average of Periods 1 and 3 with Period 2. Each period consisted 

 of two weeks, the first week as a transitory stage, the second week as a basis of 

 calculation. Throughout the tests, the cows were weighed each Monday at 11 a.m. 



The following table is calculated on the feed and production of ten cows in 

 the herd: — 



SUMMARY SHEET.— DAIRY COW FEEDING EXPERIMENT No. 1A. 



Object of Experiment. — To test value of molasses as a substitute in the meal ration. 



Rations. — Period 2: Grain, no molasses. 



Periods 1 and 3: Grain, plus 20 per cent molasses. 



Value of feeds per ton.—Kziy, $7; straw, $4; turnips and silage, $2; molasses, $23 ; meal, 1 J 

 cents per pound. 



Grain, mixture of.— Bran, 600 pounds; gluten meal, 300 pounds; oil cake, 200 pounds; cotton- 

 seed meal, 200 pounds ; and dried brewers" grains, 200 pounds. 



Number of cows in te3t 



Pounds of milk produced by 10 cows lb 



Average milk per cow per day n 



Average per cent fat in milk h 



Total pounds fat produced by 10 cows i 



Average pounds fat per cow per day h 



Total meal consumed » 



Total molasses consumed u 



Mixture consumed per 100 pounds fat produced. . „ 

 Mixture consumed per 100 pounds milk produced, n 



Findings from. Experiment. 



Cost of meal mixture fed $ 



Value of roughage fed h 



Total cost of feed « 



Cost to produce 100 pounds fat n 



„ ii 1 pound fat cts. 



„ ,, 1 pound butter u 



Profit on 1 pound butter at 30 cents per pound .. 



Cost to produce 100 pounds milk n 



Profit on 100 pounds milk at $1.70 per cwt .. 



Period 1. 



10 

 2,111 



30 

 3 



71 



10 

 571 

 142 

 994 



338 



•5 

 '2 

 •4 

 .79 



•2 

 •2 

 ■8 



Period 3. 



6 



4 



51 

 4 

 2 



10 



1,927 



27 



3 



65 



9 



571 



142 



1,089 



371 



8-78 



735 



1613 



24-60 



24 '60 

 20-0 

 91 

 83-7 

 80-3 



Period 

 1 and 3 

 average. 



10 

 2,019 



28 



3 



68 



9 



571 



142 



1,040 



35 



8 

 7 

 16 

 23 

 23 

 19 

 10 

 79 

 91 



Period 2. 



As a check on this experiment, a similar test was conducted with the cattle in 

 the main barn. The results as obtained from ten cows of this herd, are herewith 

 gi^en: 



16—35 



