97 



off to a greater extent than lot II. Unfortunately also one 

 of the cows in lot I., receiving brewers' grains, during the first 

 few days in January was slightly off her food and produced 

 only 16 pints of milk per day. In Experiment I, Bulletin 

 No. 2, the results as regards the yield of milk during the eight 

 weeks of the experiment were distinctly in favour of the lot 

 receiving brewers' grains. During the first eight weeks of 

 Experiment K, Table XXXVIII., the total yields of lot I. 

 are in favour of the brewers' grains. On the other hand 

 it will be noticed that for the ten weeks period, the results are 

 slightly in favour of lot II., receiving no brewers' grains. 

 The difference of only half a pint, however, in the totals is so 

 small as to be negligible and cannot be said to negative the 

 result of Experiment I so far as it went in the least degree. 

 Especially is this the case when it is realised that at the end 

 of eight weeks of Experiment K, lot I. had only dropped in the 

 average 1J pints per day as compared with the total average 

 at the end of the preliminary trials. While lot II. had 

 dropped 3J pints compared with the similar average at the 

 same time. The difference at the end of the ten weeks is also 

 in favour of lot I. At the end of eight weeks of Experiment 

 K, Table XXXVIII., the average increase per day in the total 

 yield of lot I. is 6 pints, while the average increase per day in 

 the total yield of lot II. is 5J pints. On the other hand, at 

 the end of the ten weeks, the average decrease per day for lot I. 

 is 2 pints, while for lot II. it is only half a pint. It is very 

 unfortunate that one of the cows in lot I. should have sickened 

 for a time. Had this not been the case it is possible that the 

 present experiment would have been to a greater degree 

 confirmatory of the previous similar experiments which 

 showed that brewers' grains possessed in a striking degree 

 the power of increasing, at all events for a time, the total milk 

 yield. It is possible, however, from the results in Tables 

 XXXVIII. and XLII. that the returns from brewers' grains 

 are not so economical when continuously fed as is generally 

 supposed. 



