ANIMAL HUSBANDRY 



removers, which, so the manufacturers claimed, 

 would save fourteen dollars in cash per cow 

 during the fly season, to say nothing of the 

 comfort of the cow and the milker. The pre- 

 ventive was applied with a spray. The result 

 of the test showed that there was no gain in 

 milk production, no gain in butter-fat, while 

 the hair of the cows became more or less 

 gummy from the application, and the milk, on 

 a number of occasions, took from the prep- 

 aration a peculiar odor. The investigations 

 showed that the annoyance to dairy cows by 

 flies has been overestimated, and that the 

 benefits from the use of proprietary fly- 

 removers have been exaggerated. In another 

 similar test made at the Wisconsin Station, 

 one-half of the herd was kept in stable during 

 the day while the fly season was in progress, 

 the other half of the herd being left exposed 

 to the flies in the open. The results of the 

 test showed that the cows protected from flies 

 by being stabled ate in four weeks eight hun- 

 dred and thirty-five pounds more of green 

 feed and lost one hundred and thirty-three 

 more pounds of flesh than those in the open 

 exposed to the flies; while, still more signifi- 



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