swine Articles
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Prokaryote community dynamics in anaerobic co-digestion of swine manure, rice straw and industrial clay residuals
The aim of this study was to analyze the effect of the addition of rice straw and clay residuals on the prokaryote methane-producing community structure in a semi-continuously stirred tank reactor fed with swine manure. Molecular techniques, including terminal restriction fragment length polymorphism and a comparative nucleotide sequence analyses of the prokaryotic 16S rRNA genes, were ...
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Occurrence of tylosin in swine wastewater in Mexico
This study determined a tylosin concentration in swine wastewater located in a Mexican pig farm, during different stages of the pigs' growth. The detection of antibiotics in swine wastewater is complex due to its high concentration of solids. Analytical method was developed for detection of tylosin in swine wastewater and swine slurry. Average recoveries of tylosin in the liquid and ...
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Assessment of swine-specific bacteriophages of Bacteroides fragilis in swine farms with different antibiotic practices
We assessed the occurrence and specificity of bacteriophages of Bacteroides fragilis in swine farms for their potential application in microbial source tracking. A local B. fragilis host strain, SP25 (DSM29413), was isolated from a pooled swine feces sample taken from a non-antibiotic farm. This strain was highly specific to swine fecal materials because it did not detect bacteriophages in ...
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5 things to do in an African swine fever outbreak
The UN’s Food and Agriculture Organisation (FAO) has provided updated numbers on the number of animals affected by African Swine Fever (ASF) across the Asian continent. Following the outbreak, more than 5.7 million pigs have been culled in Vietnam alone, with millions of other animals having to be destroyed across other countries including the Philippines, China, Cambodia, Myanmar and ...
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Influence of light intensity on hydrogen production by Rhodobacter sphaeroides from swine manure wastewater
In this paper, the effects of light intensity on the hydrogen production of Rhodobacter sphaeroides 1.1737 using swine manure wastewater as substrate were investigated. The results show that the increase in light intensity increases both hydrogen production rate and total hydrogen evolved by Rhodobacter sphaeroides, and the activity of Rhodobacter sphaeroides is getting stronger. The rate of ...
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Treatment of high loaded swine slurry in an aerobic granular reactor
Aerobic granular sludge grown in a sequential batch reactor was proposed as an alternative to anaerobic processes for organic matter and nitrogen removal from swine slurry. Aerobic granulation was achieved with this wastewater after few days from start-up. On day 140 of operation, the granular properties were: 5 mm of average diameter, SVI of 32 mL (g VSS)-1 and density around 55 g VSS ...
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Using full-scale duckweed ponds as the finish stage for swine waste treatment with a focus on organic matter degradation
The rapid increase in the number of swine has caused pronounced environmental impacts worldwide, especially on water resources. As an aggregate, smallholdings have an important role in South American pork production, contributing to the net diffusion of pollution. Thus, duckweed ponds have been successfully used for swine waste polishing, mainly for nutrient removal. Few studies have been ...
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A Bayesian network model for assessing natural estrogen fate and transport in a swine waste lagoon
Commercial swine waste lagoons are regarded as a major reservoir of natural estrogens, which have the potential to produce adverse physiological effects on exposed aquatic organisms and wildlife. However, there remains limited understanding of the complex mechanisms of physical, chemical, and biological processes that govern the fate and transport of natural estrogens within an anaerobic swine ...
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Sunset Colony Study
“We have had the Silver Bullet AG300 unit now for ten months with great measurable results. This system is currently on our water line, treating the swine gestation, farrowing and nursery. The unit can treat 75,000 gallons of water per day and will be injected into our large water tank to treat our swine gestation, farrowing, nursery, finishers and dairy. What I like about the Silver Bullet ...
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Swine Barn - Case Study
Pigs have a different spectral sensitivity for visual perception compared to humans. Requirements for lighting systems in pig houses are high: lamps need to illuminate the room perfectly, but must also withstand exterior influences such as dust and ammonia. A long service life is also expected, and the cleaning distance should be as small as possible. #Pig_production #pigfarming ...
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Genotoxicity of swine effluents
This study aimed at the investigation of genotoxic effects of swine effluents from different stages of a treatment system for swine wastes through bioassay of stamen hairs and micronuclei in Tradescantia (clone BNL 4430). No significant differences (p≥0.05) regarding the genic mutations were found in the bioassay of stamen hairs, independently of the effluent analysed. For the genotoxicity test ...
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Swine Waste Treatment - Case Study
According to the National Pork Producers Council (NPPC), the United States has more than 60,000 pork producers that annually market more than 115 million hogs, leading to an average total gross income of more than US$20 Billion1. Supporting this industry requires an estimated water demand of 525,000,000,000 gallons/yr (1,990,000,000 m3/yr) according to a 2011 report by the Pork Checkoff ...
By Aquacycl
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Rainfall-induced release of microbes from manure: model development, parameter estimation, and uncertainty evaluation on small plots
A series of simulated rainfall-runoff experiments with applications of different manure types (cattle solid pats, poultry dry litter, swine slurry) was conducted across four seasons on a field containing 36 plots (0.75 × 2 m each), resulting in 144 rainfall-runoff events. Simulating time-varying release of Escherichia coli, enterococci, and fecal coliforms from manures applied at typical ...
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Detection Workflow African Swine Fever Virus
How to detect African Swine Fever virus African swine fever poses a significant risk to wild boar populations and agricultural meat production. Currently the disease, which is caused by the African Swine Fever (ASF) virus, is spreading more and more in Europe. In Germany, the first case of an ASF infected wild boar was detected in the federal state of Brandenburg in September 2020. The need ...
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Antibiotic resistant bacterial profiles of anaerobic swine lagoon effluent
Received for publication November 3, 2008. Although land application of swine (Sus scrofa) manure lagoon effluent is a common and effective method of disposal, the presence of antibiotic-resistant bacteria, both pathogenic and commensal can complicate already understood issues associated with its safe disposal. The aim of this study was to assess antibiotic resistance in swine lagoon bacteria ...
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Season matters when sampling streams for swine CAFO waste pollution impacts
Concentrated (or confined) animal feed operations (CAFOs) are the principal means of livestock production in the United States, and such facilities pollute nearby waterways because of their waste management practices; CAFO waste is pumped from the confinement structure into a cesspit and sprayed on a field. Stocking Head Creek is located in eastern North Carolina, a state with >9,000,000 ...
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The Complete Pig Feeding Guide
The most important part of swine production is in knowing the correct way to feed pigs. Whether browsing through a piglet feeding guide or studying swine management techniques, pigs need a high energy diet that is low in fiber that contains ample protein. Pigs will consume enormous amounts of food quickly. To raise and maintain a healthy stock, maximize growth and reproduction, and increase ...
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Pretreatment of piggery wastewater by a stable constructed microbial consortium for improving the methane production
A stable aerobic microbial consortium, established by successive subcultivation, was employed to solubilize the solid organic fraction in swine wastewater. In the 30 days' successive biological pretreatments, 30–38% of volatile solids and 19–28% total solids in raw slurry were solubilized after 10 hours at 37 °C. Meanwhile, soluble chemical oxygen ...
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Removal of Phosphorus from livestock effluents
Received for publication December 12, 2007. For removal of phosphorus (P) from swine liquid manure before land application, we developed a treatment process that produces low P effluents and a valuable P by-product with minimal chemical addition and ammonia losses. The new wastewater process included two sequential steps: (i) biological nitrification and (ii) increasing the pH of the nitrified ...
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Precision Feeding: a Modern Swine Feeding Solution
Precision feeding as a modern solution for swine feeding to individual requirements and capturing the most value in your farm operation The Banff Pork Seminar is a technology transfer meeting for the pork industry that has been held in Banff, Alberta, Canada since 1972. The conference program is coordinated by the Department of Agricultural, Food & Nutritional Science, University of ...
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