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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - April 30, 1974, Lethbridge, Alberta Tuesday, April 30, 1974 THE LETHBRIDQE HERALD 7 Research Station report Water intake and stones in range calves Dr. C. B. BAILEY Animal Physiologist Urinary calculi, or stones, cause the death of large numbers of range calves each year by blocking the urethra and preventing the flow of urine. At the Lethbndge Research Station, we have found that total water intake regulates the formation of urinary calculi. When less than 3 5 pounds of water are consumed with each pound of grass dry matter, conditions in the urinary tract favor calculus formation. Because calculi are often present at weaning, we knew that this condition must have occurred while the calves were still suckling their dams But we did not know exactly when the critical ratio between water and grass dry matter was reached To obtain information to guide us in recommending preventative measures, we performed an experiment at the Manyberries Substation in which water intake of calves on range was measured several times between birth and weaning. The range was typical shortgrass prairie with needle and thread grass and blue grama grass predominant Water intake as measured included that obtained by the calves in milk and in the grass eaten as well as the free water they drank. The amount contributed by milk was known from earlier experiments. Increased We found that -water intake increased from 11 pounds per day at one week of 3.5 pounds "per pound of grass dry reached the critical level of 3 5 pounds per pounds per pound of grass dry matter about mid- September and afterwards declined even further. All water consumed was in the form of milk at one week of age but water from other sources accounted for 10 percent of the total; at 6 weeks, 50 percent at 16 weeks, and 75 percent at 23 Rust fly control weeks. Most of the water consumed in excess of that from milk will have been free water because the grass contained very little moisture. These experiments show that calculus formation could have begun in the calves in mid-September, six weeks before they are usually weaned. Removal of calves from native range at this time would reduce or eliminate A department entomo- logist is concentra- ting on control of the carrot rust fly, the larvae of which burrow into the vegetable. He has been testing his control program in co-operation with commercial growers at Holland Marsh, north of Toronto calculus formation. But for those calves that must remain on range, calculus formation could be reduced by increasing their water intake Experiments now under way are designed to test the effects of increasing the intake of salt on water intake and calculus formation in range calves. For this purpose, range supplements are being provided that contain up to 20 percent salt. VANEE LIVESTOCK LTD, FORT MACLEOD and IETHBRIDQE FORT MACLEOD Phone 234-4074 or 234-4428 Direct Line from 328-1477 328-7331 328-3211 "Livestock Dealers and Order Buyers" Hogs Shipped Monday, Tuesday, Wednesday and Thursday CATTLELINER SERVICE We buy feeders on all markets in Alberta Contact us now for your feeder cattle. S BERT MAC'S RADIO-TV LTD. VOLUME PURCHASE SPECIALS! Featuring the Finest Color Television and Stereo from ELECTROHOME Fully Automatic 26" Console Color TV's Component Stereo From '169 'Deilcraft Cabinet Stereo From We also have a good selection of B W TV's, color TV's and Stereo available now at S Serving Southern Alberta "Where Sales are Backed by Service" for 36 Years RADIO-TV LTD. 708 3rd Ave. South Phone 327-3232 ;