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Show SMART RANGE COWS CONSERVE ENERGY Cows on sparce wlnij range appear to use a subj, bu t finely-tuned regulatkj of their activities designs to conserve energy accort. ing to climatic conditio Utah State University rangi scientists studying cattle be. havior noted that the com increase their food -gather, ing efforts during warraei days when less energy is be. ing drained from the animal system in the form of bod, heat loss. They calculate; that on cold days the 50( pregnant Hereford cows the were studying on range li northern Box Elder Count reduced their activities sui, flclently to save 14 percenl of the energy they normallj expended on warm days. Tnij saving apparently allows; them to thermoregulate suf. flclently to keep warm de. spite adverse climatic con. ditions. After the young robii hatches from the greenish, blue egg, he averages eat. ing 14 feet of earth worraj per day. |