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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - March 5, 1974, Lethbridge, Alberta Tuesday, March 5, 1974 THE LETHBRIDGE HERALD 31 Useless potholes can yield fish harvest WINNIPEG (CP) Take one Prairie pothole lake in early spring, no more than two weeks after breakup. Add fingerlings, about 300 to 500 to the acre. Leave undisturbed until fall while the fingerlings feed on freshwater shrimp found in the lake. Harvest, using gill nets or trap nets, between October and December. And that is about all it takes to raise rainbow trout in that otherwise Useless pothole lake. Fish farming, practised for centuries in China, has taken a different form on the Canadian Prairies where it got started in 1968. fish farming in China, Japan, the United States and Denmark is mostly intensive, in small ponds or in cages in larger waters. "I think this pothole culture is unique to the said L. A. Sunde, a biologist at the Freshwater Institute. Prairie potholes have produced as much as 300 pounds of rainbow trout to the acre but 200 pounds is a reasonable target. The farmer's financial outlay is small. Fingerlings last year cost nine to 11 cents apiece. The cost of fish meal used by hatcheries is rising, however, and the Beef law controls Sales of fresh or frozen beef to the United States is subject to a U.S. import quota law passed in 1964 to help protect the domestic cattle industry. But President Nixon, beginning in June, 1972, has suspended the quotas to let more foreign beef enter U.S. markets. Nearly all is low-grade beef used in hamburger and other manufactured products. Australia and New Zealand provide about 70 per cent but a dozen other countries including Mexico and a number in Central America also share. fingerlings likely will become more expensive. About farmers are involved, mostly in Manitoba and Saskatchewan. Rainbow trout are favored because they can grow to marketable size in a single season. Summer kill The idea has flaws but the institute, established by the federal government, hopes to lick them. "The most serious problem is summer said Mr. Sunde. In some lakes, the algae bloom in midsummer. Their subsequent decomposition consumes the oxygen in the water and the fish die. The summer kill affects only some institute is trying to pinpoint the likely and most of them are hit only in some years. The scientists are studying ways to suppress the algae bloom or delay the collapse until the fish are ready to harvest. Another technique under examination is artificial aeration by air-bubbling hoses. Mr. Sunde said the other big difficulty is with lakes that, for an unknown reason, produce fish with a muddy flavor. Perhaps 10 to 20 per cent of the lakes are in this category. The harvest yield has often been 70 to 75 per cent of fingerlings sown but 40 per cent is considered a good yield. Sometimes the yield is zero. It takes a crew of two about five days to harvest pounds of fish. The fish may be sold to the Freshwater Fish Marketing Corp. at about 60 cents a pound dressed weight or locally for about to a pound. PUBLIC MEETING to Public MMtlng of Cargill Grain Canada Ltd. Carglll often eichnhraly "BEST OP BOTH WORLDS" contraction Flax, Rape, Rye, Mustard and Sunflower. are to be ntid p.m. at tha following Tuesday, March 12th Titar-Cific Culm MM MM Wednesday, March 13th Thursday, March 14th WKMrEHttlbH For more information, contact your Cargill man at 266-6553 or 266-6555 Calgary. VANEE LIVESTOCK LTD. FORT MACLEOD and LETHBRIDGE Fort Macleod Phone 234-4074 or 234-4428 Direct Line to Lethbridge 328-1477____ __ "Livestock Dealers and Order Buyers" Hogs Shipped Monday, Tuesday, Wednesday and Thursday CATTUUNBR SERVICE We buy feeders on all markets in Alberta ____ Contact us now for your feeder cattle. BIG YIELD FERTILIZER FOR FERTILIZER SERVICE AT ITS REST Wl OFFER THESE SERVICES Soil sampling and drying Spreader equipment rental Bulk and baggad fertilizer Custom blending and spreading Anhydrous ammonia application CONMLINI QUALITY CONKLIN PRODUCTS "made possible by miracle chemicals used in space age research" CONKLIN For more information on Conklin Products send to Big Yield Fertilizer, 309 6th Street South, Lethbridge. Name Address WEX MULTI-PURPOSE WETTING AGENT USE WITH HERBICIDE SPRAYS WHAT IT DOES: makes water wetter. Causes greater saturation. Causes more uniform coverage. Speeds penetration. Increases efficiency of various ag-chemicals. Produces finer sprays. Cleans and lub- ricates sprayer nozzles. Keeps nozzles from clogging. Enhances herbicide post-emergence activity. In- creases septic tank flow. Reduces water requirements in cement Increases strength of cement Improves cement workability. Improver machine tool cooling. Reduces foam. 4 to add leas FUEL MATE in gaiolhn, fuel, furnace oil, lub- and for KO-8 out engine trouble GEAR GLIDE conQRj SAFE amatin itltlnndM DIKE DEROLSEAL RUST BOMB braatolhagrto of RUST NOT nut MOX SANOX fectant, deodorizer, fungicide. LUB OIL FOR SALE 2 ONLY 4 TON SPIN TYPE SPREADERS ideal for large farm operations, excellent DAVE GORDON DALE BURK THOMAS-653 3412 AUBREY CLARESHOLM FRANK WELLING-752-2188 ;