feedlot Articles

  • Composting Feedlot Manure

    Situated in the Texas panhandle is an area known as the Rolling Plains ecological region, a topography consisting primarily of open-range pasture and cropland. Approximately one-third of the Rolling Plains region is dedicated to production agriculture, where huge fields of wheat, cotton and sorghum extend into the distance for as far as the eye can see. The remaining area is native grassland, ...


    By BioCycle Magazine

  • US feedlots and slaughterhouses: bounding industrial ecology with the extreme case

    The potential contribution of Industrial Ecology (IE) to sustainable development, though immense, remains elusive. This is due to the field boundaries whose demarcation lacks specificity. To address the challenge of boundary definition, an agro-industrial complex, the US Cattle Feedlot-Slaughterhouse System (CFSS), has been chosen to illustrate and provoke a discussion about where those ...


    By Inderscience Publishers

  • Dry matter mass balance estimates for composted feedlot manure

    Accurate dry matter mass balance (DMMB) estimates are important if knowledge of nutrient component changes on a mass basis is required for manure handling practices. We compared four methods of estimating DMMB during composting of solid feedlot manure. A manure stockpiling treatment was included for comparison. A method which used carbon (C) concentration to calculate organic matter, and hence ...


    By BioCycle Magazine

  • Environmental and Economic Perspectives of Milk Production in Feedlot and Grazing Systems

    Abstract Dairy production systems involve large inputs and large outputs. In environmental and economic terms, this means dairying is potentially a large consumer of natural resources and a generator of large amounts of pollutants and waste as green house gases (GHG) and manure. To ensure a sustainable milk production system; it becomes important to understand the environmental and ...


    By IFCN dairy research center

  • Effects of dried distillers` grains with solubles (wheat-based) in feedlot cattle diets on feces and manure composition

    The use of dried distillers' grains with solubles (DDGS) in feedlot cattle (Bos taurus) diets is increasing as the bio-ethanol industry expands. This study investigated how wheat (Triticum aestivum L.) DDGS-based diets impact feedlot cattle nutrient and volatile fatty acid (VFA) excretion. Feedlot heifers were fed DDGS at 0 (Control) 20, 40, 60% or 60% + Ca (1% limestone) of dietary dry matter. ...

  • Empowering Alberta: Pioneering spirit gives boost to province`s alternative energy projects

    While biofuels are getting plenty of attention these days, biorefining - the process of converting biomass into biofuels and bioproducts that may also produce energy - is evolving. It's now at a point where organizations such as Alberta Life Sciences Institute, Alberta Agricultural Research Institute and the Alberta Forestry Research Institute are focused on positioning the provinces as a global ...


    By Himark bioGas Inc

  • Closed loop system takes manure and methane

    A CONVERSION plant in Mead, Nebraska is processing manure and methane to create ethanol and compost. According to Nebraska Governor Dave Heineman: “This plant sets a new standard for ethanol production in this state and our nation, and is an example of the innovation needed to take this industry to the next level. It lets America get its automotive fuel from the croplands of the Midwest instead ...


    By BioCycle Magazine

  • Clean, green and powered by cow patties

    Two dome-like structures rise out of the thick ice fog of a Prairie winter day. From a distance, a science-fiction city seems to be taking shape on the rolling grasslands of east-central Alberta. Then, as you draw near, another sensation takes hold – the oppressively pungent odour of cow manure. On this day, the enveloping fog is making the smell worse than usual, explains Bern ...


    By Himark bioGas Inc

  • Prairie `agri-preneurs` battle megafarm waste

    Gwyn Morgan is the retired founding CEO of EnCana Corp. The revolting image of foaming green sludge washed up on a Lake Winnipeg beach in the Aug. 24 edition of Maclean's is part of, as the accompanying article states: "a putrid green mat, twice the size of PEI, and clearly visible from space ... The culprit isn't oil spills, toxic waste or even pesticides, but nutrient overloading from ...


    By Himark bioGas Inc

  • Have Your Steak and Eat It, Too

    In our recent feature, “Has Meat Met Its Match?,” writer Rowan Jacobsen explores ways people can (now and possibly in the future) reduce the environmental and food security impacts of their diets, including entomophagy (bug-eating), synthetic meat and vegetarian substitutes. If none of those fits your needs, there are plenty of other ways ...


    By Ensia

  • Open-air windrows for winter disposal of frozen cattle mortalities: effects of ambient temperature and mortality layering

    After imposition of fees for disposal of cattle carcasses by the rendering industry, on-farm methods of mortality disposal are being investigated. Three open-air mortality compost windrows were constructed in January (JAN) and February (FEB) of 2004 in the cold, semiarid climate of southern Alberta, Canada. Windrow A included a base of barley straw a minimum of 46 cm thick, a layer of cattle ...


    By BioCycle Magazine

  • Energy`s `face of the future`

    With his slow smile, trademark black cowboy hat and soft-spoken manner, Evan Chrapko is very much a modern rural Albertan. He's completely at home in the muck and mire of a farm, but equally at ease in a boardroom or at a black-tie-and-champagne reception. Evan and his brother, Shane, part of a family that grew up on an organic farm in eastern Alberta, are also a face of the Green Future. Evan ...


    By Himark bioGas Inc

  • Fishing for a Solution

    As writer Rowan Jacobsen explores in our recent feature “Has Meat Met Its Match?,” animal agriculture’s hefty environmental footprint is creating interest in exploring ways to meet humans’ growing appetite for animal protein that extend beyond beef, chicken and pork. In some places, that ...


    By Ensia

  • New study finds recycled phosphorus could fertilize 100 percent of U.S. corn

    The world has a problem. A phosphorus problem. Needed to fertilize crops, the bulk of phosphorus comes from nonrenewable phosphate rock. While China mines the most — producing almost half the world’s phosphorus — Morocco alone controls three-fourths of global phosphate rock reserves. Year by year those global reserves ...


    By Ensia

  • Ohio Takes Aim At Food Waste Composting

    WHILE RECYCLING of paper and yard trimmings have grown rapidly in Ohio in the last 30 years - now up to 50 percent for paper and 62 percent for green materials, the recovery rate for food residuals is at less than three percent of nearly 96 million tons generated annually. To turn things around, the Ohio EPA and its Solid Waste Management Division have teamed up to get the word out about ...


    By BioCycle Magazine

  • Closed-Loop Companies

    At Big Rock Brewery, spent grain is used as cattle feed. Pictured here is brewmaster Paul Gautreau. Alberta may not always get an A-grade when it comes to the environment, but in some areas the province’s enterprises are on the leading edge. In industries from agriculture to forestry to beer, Alberta businesses are taking their own initiative to become closed-loop producers – that ...


    By Himark bioGas Inc

  • Compost Science & Utilization: Current research

    Materials and Methods Composting To Eradicate Fusarium Graminearum From Infested Livestock FeedInvestigators: Francis J. Larney, Agriculture and Agri-Food Canada, Research Centre, Lethbridge, Alberta, Canada; T. Kelly Turkington, Agriculture and Agri-Food Canada, Research Centre, Lacombe, Alberta, Canada Objectives: Fusarium head blight, caused by Fusarium graminearum, could potentially become a ...


    By BioCycle Magazine

  • Cow-pattie power

    On a massive cattle feedlot located outside the town of Vegreville, Alta., the pungent odour of cow manure is masked by the sweet smell of the province’s energy future. Turning cattle dung — “brown gold,” as some call it — into green power and other valuable byproducts is a made-in-Alberta energy solution that is not only sustainable and energy efficient, but also ...


    By Himark bioGas Inc

  • Affordable new compost technology provides in-vessel levels of gas emission and odor control

    Increasingly stringent air-emission regulations and demands to better control odors has put an economic strain on industries that recycle large amounts of organic materials, such as compost facilities, dairies, and feedlots. ECS has recently introduced an affordable composting technology to greatly improve facility compliance and odor control. This technology is the AC Composter. Air Quality ...


    By Engineered Compost Systems

  • Composting on Maui hits its stride

    The Hawaiian island of Maui - a vacation destination for more than 2.2 million people each year - has a year-round growing season that yields a massive stream of green waste from nonstop cutting, trimming and pruning. For years, the resultant trimmings were simply landfilled along with the 500 tons/day of trash. One company, however, decided to turn that tide and has been aggressively taking in ...


    By BioCycle Magazine

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