91 



Summary and general conclusions. A brief summary 

 of the results is given below. 



PRELIMINARY TRIALS. 

 SET OF 10 COWS IN TWO LOTS OF 5. 



Lot I. 

 Lot II. 



Milk per cow 



per day. 

 28-36 pints 

 28-08 pints 



/ Fat. 



3-57 

 3-55 



Average live-weight 



per cow. 



l,1561b. 



1,132 Ib. 



EXPERIMENT I. 

 8 weeks, December 16, 1905 February 9, 1906. 



EXPERIMENT J. 

 8 weeks, February 10 April 7, 1906. 



The two experiments had for their object to discover the 

 effect of brewers' grains upon the quantity and quality of 

 milk. A set of ten cows which had undergone a preliminary 

 trial were under experiment for sixteen weeks. The cows were 

 divided into two lots of five, and each lot was placed in turn 

 on a ration containing 20 Ib. of ordinary brewers' grains, and 

 fed on this ration for eight weeks. The following conclusions 

 are based upon the results obtained from the two experi- 

 ments : 



(1) A moderate allowance of, say, 20 Ib. of brewers' grains 

 per day has the effect of materially increasing the daily yield 

 of milk. (Tables XXX. and XXXIY.) 



(2) The experiments did not continue long enough to show 

 the exact duration of this effect, but it would appear to be more 

 or less permanent, and would in practice cause cows to yield 



