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A Mechanical Device for Increasing the Accuracy in the Feeding of Hay to Experimental Animals^*

Storrs Agricultural Experiment Station, Connecticut

ABSTRACT

The device herein described was developed to facilitate the feeding of hay without waste to experimental cows. It arose in connection with the silage feeding investigation that was begun at Storrs in 1920.

In the first five trials the experiments were so conducted that the hay consumption was restricted and uniform in amount, but as the sixth and seventh trials involved the feeding of hay for ad libitum consumption some measure was necessary to accomplish this which would at the same time curtail waste and assure accuracy. The mangers could not be relied upon to prevent an animal from appropriating a portion of its neighbors allowance when the hay is fed liberally.

Under conditions which provide a completely enclosed manger separated from the neighboring mangers, or where there is ample space between individuals such a problem does not arise. But very often it is found necessary to adapt an experiment to ordinary conditions such as were faced here.

^* Being an extract from the thesis problem conducted by Mr. Connely.