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October 14, 2010
A Penton Media, Inc Publication


  • Manure Digester Technology Challenging
  • Visit Online Manure Digester Resource
  • Study Results Say “Go Deep” to Curb Emissions
  • Tips for Hiring Custom Applicators
  • Researchers Target Greenhouse Gas Issues
  • Upcoming Webcast Explains Air Quality Assessment
  • Watershed Management Conference Nov. 14-17



        Manure Digester Technology Challenging
    Manure digesters offer great opportunities for some livestock operations, but adoption of the technology can be challenging. A presentation at the 2010 World Dairy Expo in Madison, WI, outlined some of the advantages and drawbacks interested livestock producers may face.

    Now’s the Time to incorporate a Slurrystore System into your nutrient management program. Slurrystore is compatible for any system whether your goal is long term storage, nutrient retention, green containment, digesters or manure processing. Plus Slurrystore Systems include the added feature of agitation to help ensure nutrient consistency. Click here or contact your local Authorized Slurrystore Dealer for more information.

        Visit Online Manure Digester Resource
    The Livestock and Poultry Environmental Learning Center at the eXtension Web site now offers an expanded section covering topics related to anaerobic digestion. The section includes information about the process of anaerobic digestion, types of digesters, feedstocks, environmental benefits, safety and digester economics, among other topics. Visit the site at

        Study Results Say “Go Deep” to Curb Emissions
    Injecting dairy manure below the soil surface helped reduce ammonia emissions during recent Idaho research trials. Scientists at the USDA Agricultural Research Service Northwest Irrigation and Soils Research Laboratory in Kimberly, ID, conducted a study of four Idaho dairy farms. Liquid dairy manure, which had been stored in containment lagoons, was applied by various methods during the investigative process. Researchers compared results following three application methods, including surface broadcasting, using a rolling tine aerator to incorporate manure into the top four inches of the soil surface, or injecting 12 in. below the soil surface.

    When you feed your pigs Levucell® SB, you are taking the first step to raising robust swine. Levucell SB helps:
      • Improve daily gain and feed efficiency
      • Condition sows for faster weaning
      • Increase feed intake during lactation

    Visit to learn more.

        Tips for Hiring Custom Applicators
    The Iowa Manure Management Action Group (IMMAG) has compiled a list of considerations for producers who are planning on hiring a commercial manure applicator this fall.

        Researchers Target Greenhouse Gas Issues
    Attendees at last week’s fourth International Greenhouse Gases and Animal Agriculture (GGAA) Conference in Banff, Alberta, Canada, learned about the cutting-edge ways in which global science is seeking to drive greenhouse-gas-friendly livestock production.

    Conference speakers say the main gases emitted by the livestock industry around the world are enteric methane emitted by animals, and both nitrous oxide and methane resulting from manure handling and storage methods.

    Frank O’Mara, a greenhouse gas researcher from Ireland, told the more than 400 conference attendees that the current estimate of livestock’s contribution to total global greenhouse gas emissions is in a range from 8-10.8%. He says there is an opportunity to reduce the proportion of emissions through a variety of strategies, such as improved feeding practices, specific dietary additives and longer-term structural and management changes to areas such as animal breeding. He emphasizes there is a need for new approaches to reducing emissions, supported by incentives that compensate livestock operations for cutting emissions.

    Specific information about topics discussed at the conference can be found at

    Are you getting optimum value from your ag nutrients? Ensure an even nutrient blend and consistency with every load using a Slurrystore® and its center agitation system. There’s no better choice for long term ag nutrient storage. Now’s the Time for Slurrystore. Click here or contact your local Authorized Slurrystore Dealer for more information.

        Upcoming Webcast Explains Air Quality Assessment
    The Livestock and Poultry Environmental Learning Center will be hosting an upcoming webcast identifying benefits that could be realized by using the National Air Quality Site Assessment Tool (NAQSAT). The webcast is the second in a two-part series devoted to this topic and is entitled, "NAQSAT, a Tool for Determining Opportunities to Reduce Air Emissions from Swine and Poultry Farms." This webcast will take place at 1:30 p.m. central standard time on Oct. 15. Case studies will focus on swine and poultry operations. More information about this webcast can be found at The webcast will be archived for future reference on the eXtension Livestock & Poultry Environmental Learning Center Web site.

    The first webcast in the series addressed beef and dairy farms, and was presented on Aug. 20. View the archived webcast at

    NAQSAT addresses eight concerns that relate to air emissions: animals and housing, feed and water, collection and transfer of manure, manure storage, land application, mortalities, on-farm records and public perception. NAQSAT can be used for swine, dairy, beef, broilers chickens, laying hens and turkeys operations. It is an on-line tool, developed for voluntary and educational use, available to the public at:

    NHF Weekly Preview provides pork producers in the United States and Canada with weekly analysis of items that will impact their business. NHF Weekly Preview is brought to you from the editors of National Hog Farmer.

        Watershed Management Conference Nov. 14-17
    The Total Maximum Daily Load (TMDL) 2010 Watershed Management to Improve Water Quality conference will be held Nov. 14-17, 2010 at the Hyatt Regency Baltimore on the Inner Harbor, Baltimore, MD. This is the fifth conference in a series on this topic presented by the American Society of Agricultural and Biological Engineers (ASABE). Reports will be presented regarding ongoing research and outreach efforts related to TMDL development and implementation and watershed management. The conference has a special emphasis on issues pertaining to the Chesapeake Bay Program.

    Learn more at

    eHay Weekly is a weekly compilation of prices and marketing information for commercial hay growers. Updates include local market conditions, state and regional hay association news, hay prices from around the nation, and links to USDA weekly hay reports. eHay Weekly is brought to you from the editors of Hay & Forage Grower.

    Send Comments & Questions To
    Dale Miller, Editor, National Hog Farmer

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