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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - March 30, 1972, Lethbridge, Alberta The Lt'ttlinidgC trtHDRiocE. ALBERTA VOL I. NO. 2 THURSDAY, MARCH 30, 1972 20 PAGES r, -Woller Kerber Photo South Alberta rangeland is backed by scenic Rocky Mountain vista Rapeseed change slow to come By HIC SWIIIART Herald Staff Writer A request by the Rapeseed Association of Canada to eon- vert the national rapeseed crop to low e r u c i c acid varieties may not be mel because of low- er returns from LEAR. Losv erucic acid rapeseed va- rieties contain less acid thought in some parts of the world to be harmful when con- sumed. The government has request- ed that growers produce LEAR because it feels the varieties may be easier to sell on the International market. K. D. Gray, secretary of the national association, told the annual convention in Saska- toon that the association strongly recommends to pro- ducers that a complete conver- sion lo LEAH take place tills season. "In so doing, it is recog- nlzed that the producer has many problems and the asso- ciation calls for an urgent meeting with representatives of government to mutually seek ways and means to assure success in this ho said. Bob Simmons, vice-president of Western Canadian Seed Pro- cessors Ltd. in Lclhbridge, said in an interview that many growers will still produce the normal rapeseed because of its higher yield and oil content. Until the quality of LEAR varieties matches the normal varieties, slated for the 1974 growing season, many growers won't switch completely, he said. In the international market, the buyers are interested in the quantity of oil. LEAH va- rieties now have about two per cent less oil. The buyers are interested in the amount of oil and pay ac- cordingly. Less oil content- means less money back to the producers for the same amount of rapescwl. He said there is still a 40 m i 1 1 i o n-busbel carryover in Canada entering the 1972 crop year. Most of this is normal rapeseed and most of it will have to be exported because it is located far from domestic crushing plants The present LEAR varieties have less oil and a lower pro- tein content and are less valu- able, he said. Mr. Simmons said Western Canada is for the first time this year contracting major supplies of both normal and LEAR varieties. It is part of the changeover program. Joe Weerstra, special crops supervisor for the Alberta Wheat said his company is contracting both varieties on a lo.rge scale for the first timo this year. He said the varieties arc be- ing contracted so the company can maintain segregation of them. It is all part of a Pool pro- gram of expanded contracts to help speed up the transition pe- riod for the changeover to LEAR varielies. Vaccinate to stop IBR calf abortion There have been calf abor- tions reported from 3G farms and ranches in southern Alber- ta attributed to IBR (rednose) virus since calving started. Infectious B o v i n o Rhino- traclieiiis is a virus infection of the nostrils and windpipe in cattle. Tho virus is transmitted through tlw blood slrearn to the calf causing death, The virus leaves marks on the tissue of the calf's liver, I imgs, odrcn al gl ante and spleen, Gordon Chalmers, director of the Lothbridge Veterinarian Di- agnostic Laboratory, said there aro two main reasons for IBR abortions. Failure to vaccinate brood cows last summer before tliev were bred to immunize them is likely the greatest reason for the abortions this spring, Also, ex posure of the brood cows to ottior cattle which pass the virus to the susceptible ani- mals is a causa. Housing brood cows near feeder animals over the winter has been a classic method of spreading IBR virus to these cows, said Dr, Chal- mers, The methods of preventing IBR abortions include: vaccinate breeding ani- mals aftor they calve and 30 to 60 clays before they are bred the next year if an injectable live IBR, virus vaccine is used; vaccinate replacem e n t heifers at weaning time; a new nasal spray vaccine can be used. Tills new vaccine can be used on pregnant cows. It is tho first timo farmers and ranchers have had a preven- tion serum that can be used any time; all animals, even those well isolated from feeder cattle, should be vaccinated; don't vaccinate calves if they are to bo turned hack into pasture with susceptible preg- nant dams. Dr. Chalmers said one in- jection likely lasts for more than one year and possibly for tire life of a brood cow. Ife suggests that when an abortion storm fan outbreak of IBR abortions in a herd that can't be stopped once it breaks out) hits a herd it will do no good to spray vaccine on tho animals. "Die animals not immune likely have tho virus and tho cows already immune don't have fo be treated. lie said if a rancher lias a closed, unvaccinated licrd and he introduces a few heifers or cows which subsequently abort because of IBR, he may want lo spray vaccine quickly [o try to block the spread of virus from tho membranes and fluids of the aborted calves to his clean but very susceptible herd. ;