Horses will drink two quarts of water for every pound of hay they consume. The amount of water they consume will vary depending on how much hay they are eating every day. Other factors that cause water consumption to vary include ambient temperature, relative humidity, and activity level. Horses exercising in hot/humid weather can consume up to three to four times their normal amount.
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This work is supported in part by New Technologies for Agriculture Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.
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