ANIMALNET SEPTEMBER 1, 1998 Nexia biotech produces genetically altered goat These germs thrive on porcine stench A nose for pig effluvium; Alberta research uses refined sniffers Despite bad press, pork pays big local dividends A pig farming plan raises a ruckus in Rimbey Farmer halts barnyard runoff into river Government farm aid: scarce as hen's teeth Children's hospital medical center of Cincinnati scientists discover how bacteria protect themselves against immune system AnimalNet is produced by researchers at the Agri-Food Risk Management and Communication Project at the University of Guelph, is edited by Wendy Powell (dpowell@uoguelph.ca) and Amanda Whitfield (awhitfie@uoguelph.ca), and is supported by the Ontario Cattlemen's Association, the U.S. National Pork Producers, U.S. National Food Processors Association, Pioneer Hi-Bred Limited (Canada), the U.S. National Cattlemens Beef Association, Canadian Animal Health Institute, The Rutgers University Food Safety Extension Program, National Cattlemans Beef Association, and the Agricultural Adaptation Council (CanAdapt Program). archived at: http://www.ansc.purdue.edu/courses/ansc481/animal_net.html NEXIA BIOTECH PRODUCES GENETICALLY ALTERED GOAT ANIMAL CAPABLE OF PRODUCING LIFE-SAVING HUMAN PROTEIN IN ITS MILK Sept. 1/98 The Globe and Mail B11 (Illus) LEONARD ZEHR Biotechnology Reporter Nexia Biotechnologies Inc. of Montreal was cited as saying that it has produced Canada's first genetically altered goat, by inserting a specific human gene into the embryo of a goat, capable of producing a life-saving human protein in its milk. The medical breakthrough puts Nexia, according to this story, into an exclusive group of three international companies with the commercial capability to produce proteins from so-called transgenic animals that have been bred to contain a specific human gene in addition to their normal genetic makeup. Willow, the BELE goat (Breed Early Lactate Early), was born at Nexia's production farm in suburban Ste-Anne-de-Bellevue on Aug. 9. Jeffrey Turner, president and chief executive officer, was quoted as saying, "The advantages of Nexia's BELE goat system lie in enhancing the time and cost effectiveness of producing pharmaceuticals and other novel proteins in transgenic animals," adding that many human diseases stem from a defective gene in the body that prevents the production of proteins to combat the disease. Diabetics, for example, lack the gene needed to make insulin and hemophiliacs can't produce the protein to make blood clot. Drugs now on the market provide many of these proteins, he said, but they are either extracted from donated blood or developed in a labratory, a costly process that also carries the risk of transmitting viruses to recipients. Dr. Turner would not identify the protein that Nexia will recover from Willow's milk in about five months or what disease the drug will target. Dr. Turner was further quoted, "All I can say is that it's a generic molecule of an important therapeutic product being sold today." Willow's birth is the result of work conducted by closely held Nexia under a strategic alliance with Genzyme Transgenics Corp. of Framingham, Mass., which is in Phase III clinical trials for a blood clotting product developed from its own transgenic goats. An individual familiar with Nexia's research and development was quoted as saying, "You've heard of the six-million-dollar man? This goat is worth more," adding Genzyme previously sold the "founder goat" of a transgenic project that it was abandoning for $20-million (U.S.). THESE GERMS THRIVE ON PORCINE STENCH Aug. 24/98 Alberta Report A stench-eating micro-bug is, according to this story, the latest potential tool to control hog-barn odour. Alberta Research Council (ARC) microbiologist Richard Colman was cited as describing the bio-filter developed by the ARC lab in Vegreville as "nothing more than a conglomeration of bacteria who use the odorous materials as a food source." The barrel-shaped device, 6 feet high and three feet across, has a plastic grid bearing a three-foot-high bed of sphagnum peat. Mr. Colman explained "We spray the peat to keep it moist. As fans force the air up through the peat bed, the microbes oxidize the hydrogen sulphide, eliminating the smell and producing a dilute solution which, with further processing, could become commercial-grade sulphuric acid." The bio-filter is not yet commercially available, partly because "existing barns don't have the proper ducts to connect to the filter," says Mr. Colman. "But future barn design will include odour-control technology." A NOSE FOR PIG EFFLUVIUM; ALBERTA RESEARCH USES REFINED SNIFFERS IN EFFORT TO DIMINISH PORKER PONG Sept. 1/98 The Edmonton Journal A6 Ric Dolphin On one smell, however, according to this story, most people agree: pig waste is noxious and disgusting and something ought to be done about it. In a related story about the Alberta Research Centre in Vegreville, the provincial lab that explores matters agricultural and environmental something is. Led by ARC micro-biologist, bio-chemist and Vegreville alderman Richard Coleman, 52, a project is going on that scrutinizes eau de cochon and will ultimately find ways to lessen its assault on the collective olfactory. Coleman was quoted as saying, "What we find ourselves concerned with is how to quantify odour. This is ground-breaking research." The $185,000 odour project is being sponsored by Alberta Agriculture and the Alberta Pork Producers Development Corporation, both of which worry about public reaction to the impending increase in porcine emissions. The number of hogs in the province is expected to triple in the next three or four years. With the data they provide, says Coleman, he will be able to determine a "threshold" level of stink for the average person. This will enable the quantification of a generally acceptable level of stink to guide those constructing pig barns and lagoons. One can also imagine the creation of some sort of Stink Police whose officers, armed with a hand-held scentometer, measure whether a hog operation is exceeding legislated levels of odiferousness. Using another machine called an AromaScan that charts the chemical "fingerprint" of odours, Coleman is collecting data from pig air that he hopes will help him understand what exactly makes pig manure so stinkywhich chemicals are produced by which micro-organisms. This could lead to the formulation of new feed mixes that reduce sulphides at the back end. DESPITE BAD PRESS, PORK PAYS BIG LOCAL DIVIDENDS Aug. 24/98 Alberta Report Ed Schultz, general manager of Edmonton-based Alberta Pork Producers Development Corp. (APPDC), was cited as saying that he thinks more counties will be whole-hog behind piggeries when they peruse a new study, "Socio-Economic Impact of Hog Operations in Alberta," adding, "Pork production means jobs and economic opportunity for thousands of rural communities. Hog operations help agriculture remain the base of the community, promote progress, and attract processing infrastructure. From an environmentally-sustainable point of view, the hog industry is actually very attractive." Edmonton's Serecon Management Consulting Inc. conducted the study between January and March this year for Alberta Agriculture and APPDC. Results of the in-person interviews with 44 randomly-chosen hog farmers indicate, according to this study: - 1,000-sow operations contribute between $3.5 million and $3.8 million per year to the local economy. - For every dollar that pork operations contribute directly to the economy, they indirectly contribute an additional 50 cents during construction and $1.09 to $2.87 during ongoing operations. - Owners and employees spend at least 80% of their food, clothing, and vehicle-expenditure budgets within 30 miles of the hog farm. - Between 56% and 75% of a farm's feed (which accounts for 62% of total operating expenses excluding labour) is purchased within that 30-mile radius. Farm-gate receipts from hogs have grown by 8% per year since 1990, reaching almost $500 million in 1997. Exports sales two years ago (the most recent available numbers) totalled 30% of provincial production, worth $300 million. Mr. Schultz was quoted as saying, "What we didn't study was the jobs and income in meat-packing, transportation and sales that also result directly from the hog industry. But we and our counterparts in Saskatchewan and Manitoba are considering just such a study tracking the multiplier effect from the birth of the piglet to the restaurant freezer or retail warehouse. If we're right that the effect is between five and seven, a lot of counties may take a second look at the hog industry. Operators were perceived to be good stewards of the land and animal resources." Mr. Schultz was cited as saying that revisions to the provincial Code of Practice already address contamination concerns by requiring a packed-clay lining that "is virtually the same as sealed storage. But the hog industry does have to work harder at being a good neighbour," he urges. "In one case, the farm was right next to a golf course ... and the farmer chose to spread manure on a Saturday morning. No odour-control technology can replace common sense." A PIG FARMING PLAN RAISES A RUCKUS IN RIMBEY Aug. 24/98 Alberta Report Despite two previous approvals by the County of Ponoka's Development Appeal Board, Partners in Pork (PiP) is, according to this story, back in court. The Rimbey developer is fighting opponents of its proposed new farrow-to-finish operation. Herb Holoboff, a PiP partner, was quoted as saying, "Throughout this whole ordeal we've spent at least $50,000. And we've had to stop construction twice now." The story explained that the battle started last year, PiP, with one 1,200-sow operation in the area already, proposed a new $3.3-million project called County Line Farms, seven miles southwest of Rimbey. "The county approved. But 80 area residents challenged the approval in the Court of Appeal in Edmonton. "The judge [Justice Ellen Picard] expressed some environmental concerns," recalls Mr. Holoboff. "So we hired consultants and engineers to examine every aspect of our proposal. We made a few minor technical changes, then re-applied to the county." County administrator Charlie Cutforth was quoted as saying, "County taxpayers have already shelled out $25,000, mostly in legal fees. The August 11 hearing [before justice Anne Russell] tacked on another $10,000. If this goes to Court of Appeal, we're looking at another $30,000." Insisting that PiP "complied fully with our terms of reference for an environmental impact assessment. How far are we supposed to go - at the tax-payer's expense - to ensure people have the right to appeal? Intensive livestock operations will require re-zoning approval from county council [including a public hearing] before we'll even consider a development permit. And since by provincial law rezoning decisions are not subject to appeal in the courts, it'll save taxpayer dollars." FARMER HALTS BARNYARD RUNOFF INTO RIVER Aug. 31/98 The Kitchener-Waterloo Record B4 Bob Burtt WELLESLEY -- Keith Shultz believes, according to this story, he's doing the right thing for the environment and for his downstream neighbors who rely on clean water. For Shultz, doing the right thing means building a huge pit to hold manure that otherwise would be washed from his farm into the Nith River near the village of Wellesley. The Shultz farm, located on Township Road 56 in North Easthope Township, is a few hundred metres from a drainage ditch that feeds into the Nith, a tributary of the Grand River. He's one of 39 farmers who have received grants as part of a rural water quality program aimed at protecting surface and groundwater. Officials say that's important in this part of the Ontario, where people rely almost exclusively on groundwater and water from the Grand. The $1.6-million, five-year program, is financed with $1.5 million from Waterloo Region and $100,000 from Ottawa's national soil and water conservation program. The story says that Shultz will spend about $40,000 to construct his manure pit and will recover $15,000 of the cost from the fund. The problem has been there for a long time, but when the barn was constructed, runoff wasn't an issue, said Shultz who took over the farm three years ago. It is now though, and it is important to have clean water, he said. Shultz thinks the work would have been done eventually, but the water quality program has meant it's being done much sooner. GOVERNMENT FARM AID: SCARCE AS HEN'S TEETH Sept. 1/98 The Progressive Populist Margot Ford McMillen Of all the questions people ask farmers, perhaps the most difficult to answer is, "Can't you guys get along without government aid?" This question has three answers. One is, "Yes." The other is "No." The other other is "It depends on the program." On the "yes" side: U.S.D.A. wants you to believe that U.S.D.A. programs benefit farmers. T'aint necessarily so. The $400-million for university agricultural research, the GSM-102 export credit guarantee program which by May 1998 guaranteed $5.9 billion in loans to foreign buyers, the $1.1 billion PL480 Food for Peace program, the Export Enhancement Program which pays to keep the prices of America's foods low in foreign markets, food stamps, school lunches, these dollars go to corporations. To make matters worse, farmers sign contracts with the corporations. Their products never make the open market, and some farmers never own what they raise. One farmer the author knows is a chicken contractor for a top U.S. company. For the privilege of raising the corporation's broilers, he borrowed $225,000 to build on his farm three "state of the art" steel buildings. They were built to company specifications and outfitted with automatic feeders, waterers and ventilation equipment. He felt really good about these, especially because the design came from the University. Four or five times a year, the company delivers loads of 20,000 chicks per building and their premeasured feed. Growers are never sure how much feed they get and have asked U.S.D.A. to investigate whether the feed is fairly weighed. U.S.D.A. has promised to do so. This farmer, now a contractor, is bound to follow company policy. And, there's a big difference between farming and company policy. Experience teaches farmers to check their animals, notice little changes, and make decisions to respond. For example, a farmer culls slow-growing chicks, and saves strong ones to improve the future genetics of his flock. A contractor, on the other hand, makes no decisions. He checks the feeders and waterers. He walks through the buildings picking up the dead critters. This is an unavoidable chore in buildings where animals are packed all their lives like rush hour on a subway. Dead chickens are no longer the property of the company, by the way. Ownership upon death immediately transfers from the company to the contractor. My friend would like an environmentally sound way to dispose of the carcasses. But researchers haven't devised a thrifty, sustainable plan. It costs about $1 per carcass to dispose of them by burning, so my friend buries them. Sometimes the wild dogs dig up all the carcasses and leave them around. When the company birds are grown, the corporation crew picks them up and crams them into the suffocating cages you've seen on trucks scattering feathers down the highway. The crew, always in a hurry, kill some of the birds. Contractors wonder if these trucks are ever cleaned, and whether they spread disease from one farm to another. And it gets worse. The newer poultry houses developed by University researchers with funds from government matched by funds from industry can raise more birds more efficiently. My friend remembers how the corporation applauded his buildings, and courted him, and his rush of optimism back at the beginning. But, back to the original question: There have been a few government programs that actually benefit farmers and even ensure that land is wisely used. CRP (Conservation Reserve Program) kept marginal land out of production for many years, helping prevent erosion and overproduction. And occasionally there's a program that puts tax dollars into programs that put farmers in touch with consumers, like creating farmer's markets. But these helpful programs are scarce as hen's teeth. Our supply of farmers is dwindling -- over half the farmers raising hogs went out of business in the last five years. While other countries keep their number of farms and farmers steady, our national policy of industrialization forces farmers off the land. Margot Ford McMillen farms and teaches English at a college in Fulton, Mo. CHILDREN'S HOSPITAL MEDICAL CENTER OF CINCINNATI SCIENTISTS DISCOVER HOW BACTERIA PROTECT THEMSELVES AGAINST IMMUNE SYSTEM; DISCOVERY, PUBLISHED IN PNAS, PAVES WAY FOR NEW ANTIBIOTIC DEVELOPMENT Aug. 31/98 from a press release CINCINNATI -- Scientists at Children's Hospital Medical Center of Cincinnati have discovered a major mechanism by which bacteria protect themselves against the human immune response - a discovery that opens the door for development of a new class of antibiotics to fight infection. In the study, to be published in the September edition of Proceedings of the National Academy of Sciences, the researchers have discovered that flavohemoglobin, a protein in bacteria, protects the bacteria from nitric oxide (NO), a toxic chemical secreted by the immune system to help kill disease-causing microorganisms. The protein, which the researchers have re-named nitric oxide dioxygenase (NOD), detoxifies NO, providing protection against infection. "It's a breakthrough concept," says Andrew Salzman, M.D., director of critical care at Cincinnati Children's and co-discoverer of the mechanism, along with Paul Gardner, Ph.D, and colleagues in the Kindervelt Shock Research Center at Children's. "With this discovery, Dr. Gardner has created a new field of research." NO is a toxin produced by inflammatory cells that injures or kills bacteria. Over time, however, a mechanism has evolved that prevents NO from damaging bacteria. This detoxification of NO allows bacteria to survive. Without this protection, they would be unable to infect the host. Interestingly, NOD is an old protein, perhaps billions of years old, originating around the time oxygen appeared in the earth's atmosphere. "It's actually the forerunner of hemoglobin - a protein in red blood cells that carries oxygen," says Dr. Salzman. "It's abundant and present throughout the animal kingdom for transporting oxygen in the blood. It's been known for many years that there is a form of hemoglobin in bacteria, but its function was entirely unknown. It surely wasn't to carry oxygen. Now we've discovered what we believe is the fundamental purpose of this protein - to protect organisms against nitric oxide. So we are now providing an understanding of the evolutionary basis of hemoglobin and the original function of the hemoglobin family - to detoxify nitric oxide." This evolutionary history has broad and dramatic implications for human health. Overwhelming infection is one of the major reasons for children and adults are admitted to intensive care units. It's also one of the leading causes of death. New antibiotics could change that. "Bacteria vary enormously in their ability to defend themselves against nitric oxide," says Dr. Salzman. "But if you remove this protein from bacteria, you can kill them with almost nothing. They're exquisitely sensitive to nitric oxide. Yet, if they're exposed to nitric oxide all the time, the bacteria rev up this system to detoxify it." Dr. Salzman speculates that this may be what predisposes smokers to infection. Smokers constantly bathe their lungs with huge concentrations of NO. It is possible that bacteria in the lungs of smokers become more resistant to the effects of nitric oxide. So far, Children's scientists have studied only the most common bacteria at the basic level. But because NOD is broadly represented in different bacteria, they have no reason to believe this mechanism is unique to any particular strain. 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