95 



The cows were fed as above for ten weeks. At the end 

 of this period, the rations were reversed, the brewers' grains 

 being now given to lot II. instead of to lot I. This further test 

 (Experiment L) was commenced on February 16, 1908, and 

 continued for another period of ten weeks. 



As before, the cake and meal and chopped straw were made 

 into " crowdy " before being served to the cows, and water was 

 supplied ad lib. 



Results. As usual, the yield of milk, the percentage of 

 fat, and of " solids not fat," are tabulated separately, the 

 figures given in the tables being the weekly averages. Table 

 XXXVIII. shows the quantity of milk produced by the two 

 lots in Experiment K. 



Briefly, Table XXXYIII. shows that while the brewers' 

 grains have not produced so striking an increase in the flow 

 of milk as they did in Experiment I, yet there is an increase 

 from their use and it may be assumed that the experiments 

 are confirmatory one of the other. By those who study the 

 table in greater detail it will be seen that in this and the 

 other tables the results have been tabulated to show the 

 fluctuations during the first eight weeks of the experiment as 

 distinct from the fluctuations of the ten weeks. In both of the 

 experiments, as shown by the Tables XXXVIII. and XLIL, 

 there is a distinct drop during the last two weeks in the 

 quantity of milk produced by both lots of cows. On page 87 

 of Offerton Bulletin No. 2 it is recorded that " in the last week 

 of all there was an increase in the yield of both lots, which 

 is impossible to explain." The last week of this particular 

 Experiment J was the eighth week. It is rather a suggestive 

 fact that in both of the present Experiments K and L, during 

 the eighth week of the experiment there is a distinct increase 

 in the quantities of milk produced in three cases, while in the 

 fourth case it remains the same as in the seventh week (see 

 Tables XXXVIII. and XLII.). The same tables show that 

 during the ninth and tenth weeks there is a very appreciable 



