OCR Text |
Show Measuring Efficiency of Cow Is the Latest Task Electricity's latest task is a boon to the dairy industry. In the laboratories labora-tories of the College of Agriculture, University of California, at Davis, Calif., there has just been completed a "respiration chamber" in which the input-output efficiency of a cow may be tested electrically. In fact, provisions pro-visions are made for tests on two cows at one time. The animals are provided with comfortable com-fortable stalls in air-tight chambers, and are fed, watered, milUed and cleaned under careful laboratory conditions. con-ditions. The feed is weighed, the water wa-ter is analyzed and the air in the chambers is cooled and humidified. Attendants who enter the chamber at regular intervals must . pass through an air r!oeU auxiliary chamber to prevent pre-vent air leakage. The breathing of the animals Is measured by an elaborate "mechani- oal lung ' device caled an "aspirator," designed and built by Doctor Kleiber on the staff of the college. A classifier, classi-fier, in the basement under the respiration respi-ration clia'mber, separates the waste products. The entire equipment is about three times the size of a large motor bus, and it cost nearly three times as much. |