Manure and the Environment

Agricultural Production Animal Manure Management

Manure and the Environment

Manure contains four primary contaminants that impact water quality: nitrogen, phosphorus, bacteria and other pathogens, and organic matter. Achieving a nutrient balance will reduce potential environmental hazards often associated with animal agriculture. An annual crop nutrient management plan is needed to ensure an adequate supply of nutrients to sustain profitable crop production, and to balance nutrient inputs (including manure) with crop nutrient needs.

Water productivity in meat and milk production in the US from 1960 to 2016 (Part I)

graphs comparing livestock production to 1960 levels
Livestock production plays an important role in rural and urban economies worldwide and is a significant source of protein in humans’ diet. However, the growth of the livestock sector can have negative impacts on our natural resources; fresh water consumption, water quality deterioration due to manure nutrient losses to surface water, greenhouse gas emissions, and competition for human-edible grains are all possible consequences of food animal production. To address some of these environmental impacts of livestock production, the sector has been working hard to improve livestock productivity, feed-use efficiency of animals, crop productivity and efficiency of resource utilization in the field, and expanding the sourcing of feeds.

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Demystifying Poultry Manure: Best management practices for optimizing agronomic value and minimizing environmental risks

chicken
Calling all crop producers who are considering using poultry manure…and rural citizens who want to learn more about poultry manure management!

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Effects of Manure on Fish Populations

Toxic Algal Bloom
Algal blooms may occur in bodies of water with excess amounts of nitrogen and phosphorus. These algal blooms are detrimental to fish populations, other animal populations, and possibly human health.

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Manure Rules not just for Large CAFOs

cover of 2019 nutrient management calendar
Have you ever been overwhelmed by the amount of manure regulations in Nebraska? Or anywhere? This article simplifies basic manure regulations. Manure rules can be hard to remember, but always remember your Nebraska Department of Environment and Energy representative is a great resource. Don’t be afraid to call them if you have questions. And, as always, the UNL manure team is here to help if called upon.

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Fate of antimicrobial resistant bacteria and genes in manure storage

graphic with question posed as to whether human diseases can be caused by manure
Manure storage and its application on crop land may contribute a form of environmental contamination: antimicrobial resistant bacteria. These bacteria in manure are perceived to cause diseases in humans through environmental contamination. However, a recent study in University of Nebraska-Lincoln feedlots near Mead, Nebraska concluded that long-term manure storage as static stockpiles has the advantage of inactivating antimicrobial resistant bacteria, and it has potential to reduce antimicrobial resistance genes.

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