wa ted e, STORRS AGRICULTURAL EXPERIMENT STATION. 
Table 47 shows that Group II. gave in the first, third, and 
fifth weeks, when not sprayed, an average of 848.7 pounds of 
milk, and when sprayed gave 839.0 pounds, or a loss of 9.7 
pounds. 
Tables 48 and 49 show that with Group I. the fat production 
was .46 pound less and with Group II., .1 pound less when 
sprayed. 
TABLE 50. 
Weekly Milk Shrinkage of Groups I. and IT. 











Group I. Group II. 
4 [es | 4 | 8 
a |mod || a | Sou 
TIME. | ‘TREATMENT. r ag ro E a. TREATMENT. 
Lbs. Lbs. bs! Lbs. 
July 16-22, - | Sprayed, - |948.4| — |1934.1] — | Not Sprayed. 
July 23-29, = | Not Sprayed, | 926.6) 25.3 (861.017 73 71 Sprayed. 
July 30-Aug.5, | Sprayed, - |886.0] 40.6 || 834.8] 26.2 | Not Sprayed. 
Aug. 6-12,  - | Not Sprayed, | 869.2| 16.8 || 817.2| 17.6 | Sprayed. 
Aug. 13-I9, - | Sprayed, - | 836.3] 32.9 || 777.4| 39.8 | Not Sprayed. 




The same brand of ‘‘fly remover’’ was tested again in 1903. 
The herd was divided into two divisions as before, and the plan 
of the experiment was the same, except that the cows were 
sprayed for a period of two weeks. In the first period Group 
I. was sprayed, and Group II. was not. In the second period 
Group II. was sprayed, and Group I. was not. In Period III. 
the treatment was the same as in the first period. 
The difference in the individuality of the milkers was elimi- 
nated by having each one milk the same number of cows in 
each group. ‘The repellant was applied thoroughly once a day 
to all parts of the animal. The hair of the animals became 
more or less gummy. The milk on several occasions had a 
peculiar odor, which was attributed to the ointment. ‘The milk 
flow and the butter fat production of the second week of each 
period are taken for comparison. It was thought possible that 
in the previous year the week periods were too short, and that 
the effects of spraying extended over into the succeeding week, 


