animal feeding operation Articles

  • Nutrient Management: Recycling Residuals Into Animal Feed

     Composting Reduces Fuel and Labor Costs on Family Farms Jeff and Pam Riesgraf — who manage a certified organic dairy and crop operation near Jordan, Minnesota — began composting manure from their dairy herd in 1993. They had two major objectives. First, they wanted to reduce weed seeds naturally present in manure. At the same time, they understood the need to protect water quality by ...


    By BioCycle Magazine

  • Managing waste from confined animal feeding operations in the United States: the need for sanitary reform

    Confined food-animal operations in the United States produce more than 40 times the amount of waste than human biosolids generated from US wastewater treatment plants. Unlike biosolids, which must meet regulatory standards for pathogen levels, vector attraction reduction and metal content, no treatment is required of waste from animal agriculture. This omission is of concern based on dramatic ...


    By IWA Publishing

  • Seasonal Changes in Airborne Fungi and Bacteria at a Dairy Cattle Concentrated Animal Feeding Operation in the Southwest United States

    The objective of this study was to evaluate a dairy located in the arid southwest United States to determine the concentrations and seasonal variation of airborne fungi and bacteria and to determine the percentage of antibiotic resistant Staphylococcus aureus. The authors used two-stage ambient air sampling systems to measure the culturable airborne fungal organisms and bacteria on a monthly ...

  • animal feed pellet machine for home use and poultry farm to make best pelleted feed

    the advantages of this animal feed pellet machine are nice looking in shape, simple in structure, easy in operation and service, safe in solidity, small in volume. and light in weight etc. No special training needed and operation available through manual,The pellet mill accepts the dry ...


    By Victor Pellet Mill

  • Animal Manure or Sludge Organic Fertilizer Production

    Introduction of Animal Manure or Sludge Organic Fertilizer Production Line Organic fertilizer production line is designed for producing organic fertilizer from animal manure or sludge, without any chemical ingredients. As chickens, pigs have a poor digestion, can only consume 25% of the nutrients, so other 75% of feed nutrients with feces discharge can be produced to the dry ...

  • Diesel Flat Die Feed Pellet Machine

    Diesel Feed Pellet Machine Introduction Pellet machine is frequently driven by diesel engine or electric motor.Diesel feed pellet mill is energy saving pellet machine for making feedstuff for animals such as feed for rabbits, fish, chicken, pigs, sheep, cattle, etc.A variety of raw materials like all grains such as corn, broomcorn, barley and wheat,etc.can be processed into feed pellets.Feed ...


    By Allance Pellet Machinery

  • Regulating the land application of manure from animal production facilities in the USA

    Water pollution from the land application of manure has been cited as an issue that needs to be addressed. Judicial challenges have forced the US Environmental Protection Agency (EPA) to adopt additional controls governing concentrated animal feeding operations (CAFOs). State agencies have also been directed to do more to minimize the risk of pollution from animal production. In developing ...


    By IWA Publishing

  • Does one of the world’s most abundant animals need protection from our appetite?

    As demand grows and habitat disappears, scientists ponder tighter controls on the Antarctic krill harvest. Barely longer than your thumb, weighing under an ounce and nearly translucent, delicate crustaceans known as krill are vital to ocean ecosystems around the world. In the waters that encircle Antarctica, krill are an essential food source for penguins, baleen and blue ...


    By Ensia

  • 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

  • Reuse of dairy lagoon wastewater through SDI in forage crops

    Abstract California has become the leading dairy products producing state in the USA. This has resulted in farms commonly milking several thousand cows per day. The care and feeding of the animals has produced large waste streams commonly collected and stored in lagoons. Environmentally safe handling and reuse of the lagooned wastewater is the objective of this study. A system of ...


    By Geoflow, Inc.

  • CAFO Manure Treatment-Struvite Removal and Struvite Prevention

    CAFOs (Confined Animal Feeding Operations) face struvite in their manure holding ponds and manure lagoons, as well as their recirculation systems. On a dairy farm in Neb. that operated with 15,000 milking cows, they were generating 500,000 gal per day of wastewater laden with manure.  Over the summer, they noticed a reduction in their pumping capacity because the first lagoon was ...


    By Struvite Removal

  • Molasses Tanks For Effective Storage Of Molasses and Liquid Fertilizer

    As the UK’s sugar beet harvest is still underway, molasses production is also at its yearly high. 50% sugar by weight, beet molasses contain calcium, potassium, oxalate and chloride, making for an ideal base for a number of animal feeds over the winter. Correct storage of molasses is vital and the Enduramaxx range of Molasses Tanks are manufactured from UV stabilized polyethylene and come ...


    By ENDURAMAXX

  • From factory to farm – industry opportunities for surplus food

    Food waste management is a common topic in the industry, as manufacturers and retailers strive to improve their environmental compliance and, ultimately, their profitability. But in line with the increasingly popular concept of the circular economy, specialist surplus food recycler SugaRich is working with producers and stores, large and small, to show that this ...


    By SugaRich

  • Building a Business with Nutrient Management

    Laurelbrook Farm is a third-generation dairy farm in East Cannan, Connecticut. The Jacquier family owns 275 acres, and rents an additional 2,500 acres for cropping, to support a herd of 830 cows. The family began composting three years ago as part of the farm’s nutrient management plan, as well as to determine the market for compost in the area. “In 2003 the Environmental Protection ...

  • Zone tillage depth affects yield and economics of corn silage production

    Increasing numbers of dairies in northeastern United States are classified as confined animal feeding operations (CAFOs). Many dairy farmers in New York (NY) abandoned conventional and adopted zone tillage (ZT) in 4-yr corn (Zea mays L.) silage-alfalfa (Medicago sativa L.) rotations on highly erodible land to comply with NY CAFO plans. Farmers now question optimum ZT depth because of increased ...

  • Zone tillage depth affects yield and economics of corn silage production

    Increasing numbers of dairies in northeastern United States are classified as confined animal feeding operations (CAFOs). Many dairy farmers in New York (NY) abandoned conventional and adopted zone tillage (ZT) in 4-yr corn (Zea mays L.) silage-alfalfa (Medicago sativa L.) rotations on highly erodible land to comply with NY CAFO plans. Farmers now question optimum ZT depth because of increased ...

  • Ammonia volatilization from Urea-based fertilizers applied to tall fescue pastures in Georgia, USA

    The use of urea fertilizers in grasslands is likely to increase in areas with concentrated animal feeding operations as restrictions on manure applications are implemented. Concerns have been raised about the economic and environmental impacts of NH3 loss from these urea fertilizers. This study evaluated NH3 losses from Nitamin (a urea polymer), urea–NH4NO3 (UAN), and granular urea applied to ...

  • Case Study - Manure Magic

    Manure Magic is a patented product that can help support successful manure management programs throughout the world, such as field applications as fertilizer, because of its ability to liquefy the manure, which makes it much easier to administer. Application Examples The increase in regulatory requirements in dealing with animal waste solids has required growers to closely ...


    By DryLet

  • Nitrogen losses from dairy manure estimated through nitrogen mass balance and chemical markers

    Received for publication February 13, 2009. Ammonia is an important air and water pollutant, but the spatial variation in its concentrations presents technical difficulties in accurate determination of ammonia emissions from animal feeding operations. The objectives of this study were to investigate the relationship between ammonia volatilization and 15N of dairy manure and the feasibility of ...

  • Transport of lincomycin to surface and ground water from manure-amended cropland

    Livestock manure containing antimicrobials becomes a possible source of these compounds to surface and ground waters when applied to cropland as a nutrient source. The potential for transport of the veterinary antimicrobial lincomycin to surface waters via surface runoff and to leach to ground water was assessed by monitoring manure-amended soil, simulated rainfall runoff, snowmelt runoff, and ...

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