cattle pen Articles

  • Nutrient accumulation below cattle feedlot pens in Kansas

    Received for publication April 30, 2008. Waste excreted on cattle (Bos taurus) feedlot pens is a source of N and other nutrients that could potentially leach into soil and negatively impact local groundwater quality. Analyses of soil chemical and physical properties beneath active open air feedlot pens were conducted at four Kansas locations to determine nutrient accumulation. Results were ...

  • Performance of a dispersion model to estimate methane loss from cattle in pens

    Received for publication December 29, 2008. Accurate measurements of enteric methane (CH4) emissions from cattle (Bos taurus) are necessary to improve emission coefficients used in national emissions inventories, and to evaluate mitigation strategies. Our study was conducted to evaluate a novel approach that allowed near continuous CH4 measurement from beef cattle confined in pens. The backward ...

  • Performance of a dispersion model to estimate methane loss from cattle in pens

    Received for publication December 29, 2008. Accurate measurements of enteric methane (CH4) emissions from cattle (Bos taurus) are necessary to improve emission coefficients used in national emissions inventories, and to evaluate mitigation strategies. Our study was conducted to evaluate a novel approach that allowed near continuous CH4 measurement from beef cattle confined in pens. The backward ...

  • 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. ...

  • 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

  • Surprising ways Kenyans are embracing climate-smart agriculture

    In rural Kenya, where it may only rain twice per year, farmers and herders are embracing so-called “climate-smart” agriculture. The video above, produced by the World Bank, begins by showing how John and Mary Obuom have transformed their one-acre farm into a model of sustainable practices. The family plants a diversity of crops in case one or more fails in a given year. A thicket of ...


    By Ensia

  • 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

  • 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

  • Cost-Benefit Analyses: Exploring the Economics of On-Farm Composting

    When exploring the merits of on-farm composting, the question most often raised is: What are the economics? How do the savings or revenues from on-farm composting compare to the costs? Of course, the answer is the ever present “it depends.” Expenses, resources, revenue opportunities, environmental constraints and circumstances vary greatly from one farm to the next. Most people would agree that ...


    By BioCycle Magazine

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