How James Cups Increase 

 Milk Yields 



Those who reahze how greatly milk flow is increased by the use of James 

 cups, permitting cows to drink all the water they want, when they want it, 

 whether day or night, are making $10, $15, yes, even $20 and more per cow 

 extra profit each winter. 



And they are doing this merely by giving cows all the water they need. 

 Water costs practically nothing. Feed costs — well, it costs enough. 



How wonderfully James drinking cups increase dairy profits is shown by 

 a recent investigation among farmers using them. 



A list of questions was sent out to which 120 replies giving definite infor- 

 mation were received. 



These replies came from practical farmers, for the average size of the 

 herds was 24 cows. 5 of the herds had less than 10 cows; 61 had 10 to 20 

 cows; 27 herds had 21 to 30 cows; 10 had 40 cows; 4 had 41 to 50 cows; 

 and 6 had from 51 to 1 00 cows each. 



Of the 120, 108 said that James cups increased their milk yields; only 

 5 said they noted no increase; and the other 7 did not answer this question. 



Out of the 108 who said that the drinking cups increased the milk yield 

 69 gave definite figures on the amount of increase, 28 basing their statements 

 on milk records and 41 basing their statements merely on an estimate. 



It is striking, however, that the average of the reports based on milk rec- 

 ords checked very closely the average of the 41 reports based on estimates. 



Of the 28 reports on actual milk records, one reported an increase varying 

 from 5 to 10 pounds per cow per day; 4 report an average increase of 4 

 pounds per cow per day; 3 state 3 pounds; 5 say 2 pounds; 3, 1 '/2 pounds; 

 1, % pounds; 1 reports $8.56 increase per cow for the winter 1917-1918; 

 one $5.00; one $10.00; one received 3% increase; one 8^^^ ; two 10%; 

 one 12J/2% ; one 20% ; one 33 1/3%. ; and one merely says "not much." 



These 28 reports cover 759 cows, the average herd being 27 cows. 



To reduce the above figures to an average, let us assume that 1 6 pounds 

 daily is an average milk yield for good cows and that $3.25 per hundred 

 was the average price of milk. This would make the average increase per 

 cow per day for each of the 759 cows 2.45 pounds. 



Of the 41 who based their statements on estimates instead of on milk 

 records, 5 report an increase of 1 pound per cow per day; three of 1 '/2 pounds; 

 five 2 pounds; four 3 pounds; five 4 pounds; one 5 pounds; one 10 pounds; 

 one reports a slight increase; one reports '/2 pound increase; one "consider- 

 able;" two report 25/' ; two 20%; one 15^; ; three 10%; two 5% ; two say 

 $10.00 per cow during the winter; one $5.00; and one says 50c per cow 

 per month. 



