livestock operations Articles
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Lowara pumps drive livestock operations
Animal output processed for safe disposal, reuse and renewable energy Xylem scope Xylem Lowara have installed several different types of pumps in this process cycle. Ranging from the DLV submersible pump fitted with Vortex impeller used in the pressurization of wastewater obtained from the separation of the digestate. Various high efficiency e-range pumps have also been used including the e-SH ...
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Air emissions of ammonia and methane from livestock operations: Valuation and policy options
The animal husbandry industry is a major emitter of ammonia (NH3), which is a precursor of fine particulate matter (PM2.5) —arguably, the number-one environment-related public health threat facing the nation. The industry is also a major emitter of methane (CH4), which is an important greenhouse gas (GHG). We present an integrated process model of the engineering economics of technologies to ...
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Assessing agroforestry`s advantages
Agroforestry, the deliberate placement of trees into crop and livestock operations, can help capture substantial amounts of carbon on agricultural lands while providing production and conservation benefits. However, we currently lack tools for accurately estimating current and projected carbon values in these systems. In North America, windbreaks are an effective carbon-capturing option. Only ...
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Effects of androstenedione exposure on fathead minnow (Pimephales promelas) reproduction and embryonic development
High concentrations (300 ng/L) of androstenedione (A4) were identified in snowmelt runoff from fields fertilized with manure from livestock feeding operations in Wisconsin. In fishes, A4 is an active androgen and substrate for biosynthesis of functional androgens (e.g., testosterone and 11‐ketotestosterone) and estrogens (e.g., estradiol‐1713). Thus, A4 has the potential to be a powerful ...
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3 Tips on How to Keep Dairy Barns Bird-Free
Controlling birds around farm buildings can take time out of your already strict daily routines. Nuisance birds like pigeons, starlings and barn swallows don’t care about anyone’s schedule but their own. Unfortunately, sharing the barn with pest birds isn’t sanitary and the costs and dangers of birds in dairy and livestock operations can add up quickly! See how to keep dairy ...
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Integrated assessment of runoff from livestock farming operations: Analytical chemistry, in vitro bioassays, and in vivo fish exposures
Animal waste from livestock farming operations (LFOs) can contain varying levels of natural and synthetic androgens and/or estrogens, which can contaminate surrounding waterways. In the present study, surface stream water was collected from six basins containing LFOs. Aqueous concentrations of 12 hormones were determined via chemical analyses. Relative androgenic and estrogenic activity was ...
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A preliminary review of gas-to-particle conversion monitoring and modelling efforts in the USA
Ammonia and inorganic acid gases emitted from livestock and poultry operations, manure treatment, handling and application can affect air quality by the formation of secondary fine particles. The process of gas-to-particle conversion (GTPC) of relatively short-lived gaseous ammonia to more persistent fine particles can affect local and regional air quality far away from the agricultural sources. ...
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The localization of agriculture
In the United States, there has been a surge of interest in eating fresh local foods, corresponding with mounting concerns about the climate effects of consuming food from distant places and about the obesity and other health problems associated with junk food diets. This is reflected in the rise in urban gardening, school gardening, and farmers’ markets. With the fast-growing local foods ...
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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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Application of Biochar in Animal husbandry: Feed Additive
Animal husbandry plays a crucial role in meeting the global demand for animal products. However, it also generates significant environmental challenges, such as nutrient runoff and greenhouse gas emissions. To address these issues, researchers and farmers have been exploring innovative solutions, and one such solution is the application of biochar as a feed additive. This article will delve into ...
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