J. Anim Sci.
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J. Anim Sci. 1951. 10:742-751.
© 1951 American Society of Animal Science
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Water Consumption of Hereford and Brahman Cattle and the Effect of Cooled Drinking Water in a Hot Climate1

N. R. Ittner2, C. F. Kelly3 and H. R. Guilbert4

University of California

Abstract

An investigation was made during the summer in the Imperial Valley of California on the effects of cooling drinking water and on the comparative water consumption of Brahman and Hereford cattle.

The mean air temperature during the test was 85.4°F; mean maximum, 100.5°F; mean minimum, 70.2. The extreme range was from 54° to 118°F.

The gains for Herefords, Lot 1, (drinking water 65°F), Herefords, Lot 2 (drinking water 88.2°F) and for Brahmans, Lot 3, (drinking water 88.2°F) were 1.46, 1.07, and 1.45 respectively. The ration was 75 percent alfalfa and 25 percent barley hay.

Daily water consumption per head averaged 15.36, 16.61, and 9.98 gallons respectively for Lots 1, 2, and 3, corresponding with 1.69, 1.89, and 1.55 gallons per 100 pounds live weight.

Data on respiration rates and on drinking habits are included. The cooled water effected an average decrease in heat load of 2800 B.t.u. per animal daily. The physiological and practical significance of the data are discussed.

Footnotes

1 This paper is a result of a cooperative project between the U. S. Department of Agriculture and the Divisions of Animal Husbandry and Agricultural Engineering of the University of California. The authors wish to acknowledge the assistance of Glenn Throckmorton, herdsman, in making observations on the cattle, of George Gallaher, Associate in Agricultural Engineering, in designing the water cooling system, and of W. C. Rollins, Assistant Professor of Animal Husbandry, in the statistical analyses.

2 Division of Animal Husbandry, California Agricultural Experiment Station, El Centro, California.

3 Division of Agricultural Engineering, Davis. (At the time the studies were made, Agricultural Engineer, U.S.D.A.)

4 Division of Animal Husbandry, Davis.






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Copyright © 1951 by the American Society of Animal Science.