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Showing 1 to 20 of 40 for “"Feedlots"”.
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Economies of scale in farmer operated cattle feedlots, Kansas
Call number: LD2668 .T4 1964 W17
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Economies of scale in farmer operated cattle feedlots, Kansas
Call number: LD2668 .T4 1964 W17
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Particulate matter emissions from commercial beef cattle feedlots in Kansas
Large cattle feedlots in Kansas are often considered to be large sources of particulate matter (PM), including PM with equivalent aerodynamic diameter of 10 micrometers or less (PM[subscript]10). To control PM emissions from cattle feedlots, water sprinkler systems can be implemented; however, …
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Survival and growth of fish in water reclaimed from cattle feedlots
Today there is a growing realization that we must reuse and conserve our natural resources to minimize pollution and environmental degradation. This concern has brought about an interest in integrated systems, which reuse water and produce marketable products in the process. With this in mind, …
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Measurement and control of particulate emissions from cattle feedlots in Kansas
… an increasing concern for large open beef cattle feedlots. Research is needed to develop science-based information on PM emissions and abatement measures for mitigating those emissions. This research was conducted to (1) measure PM concentrations emitted from large cattle feedlots, (2) compare …
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Factors Affecting Feedlots' Decisions on Cattle Marketing Options: A National Study
… grading choice or better) among others influence feedlots’ decision to use a particular marketing arrangement.</p>
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Water and Nutrient Balances of Vegetative Treatment Systems for Feedlots in South Dakota
<p>Vegetative treatment systems (VTS) are a possible alternative to storage basins for managing feedlot runoff but have not been researched in South Dakota. This study was conducted to evaluate the performance of VTS within South Dakota. The performance was evaluated by determining water and mass …
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Commercial Viability of Beef Cattle Production: A Case of Traditional Feedlots in Lake Zone, Tanzania.
… farming and socioeconomic contribution of feedlots to feedlots operators was crucial. The study adopted across sectional study conducted in Mwanza and Kahama districts due to having large numbers of cattle, being drought prone and large numbers of feedlots operations. Data were collected …
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New applications of STEPL watershed modeling of CAFO feedlot runoff and implications of surface water impacts
… to capture runoff from large CAFO cattle feedlots. Feedlots are classified by digitizing land use data in ArcGIS, in order to estimate pollutant loads from each sub-watershed and determine the nutrient contributions from direct discharges from CAFO feedlots. Five CAFO feedlots are modeled …
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Characterization of the genetic diversity and antimicrobial resistance in Mannheimia haemolytica from feedlot cattle
… diversity of M. haemolytica, particularly from feedlots. Three genotyping techniques (BOX-PCR, (GTG)5-PCR and PFGE) were compared to discriminate M. haemolytica and strains from the family Pasteurellaceae. PFGE was the most discriminating and repeatable, although BOX-PCR was most accurate in …
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The economic and environmental implications of feedlot manure utilization in the Texas High Plains
… waste management issues important to cattle feedlots, farmers and consumers. These problems are especially evident in the Texas High Plains (THP), an area where vast numbers of cattle are fed alongside a large farm base. The objective of this research was to determine efficient patterns of …
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Wetland Characteristics of Avian Cholera Outbreaks and Surface Water Transfer in the Nebraska Rainwater Basin Area
… the nesting season are of concern to biologists. Feedlots and itner-wetland basin surface water transfer mechanisms of the avian cholera causative agent, P. multocida, were investigated using remote sensing techniques. Wetland basin characteristics (classification type, adjacent landuse, basin …
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The potential of antimicrobial resistance diagnostics to inform prudent antimicrobial use in feedlot cattle: dynamic models as tools for optimizing interventions in bovine respiratory disease
… injectable antimicrobial use (AMU) in Canadian feedlots. Global authorities recommend that diagnostic tests should be used to guide therapeutic drug selection in food animals to reduce unnecessary AMU and slow AMR. However, the potential for laboratory testing to inform AMU and favourably impact …
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Cattle manure characteristics in relation to manure accumulation period and seasonal impacts in the intermountain west
… from the intermountain west, home to many cattle feedlots producing millions of tons of manure a year. Beef cattle feedlots pens typically have a base of compacted manure with no roof covering the pen. With no roof over the beef cattle feedlots and low collection frequency, the manure is exposed …
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An evaluation of cattle handling categories in the beef quality assurance feedyard assessment, compliance of large feedyards with these guidelines, and influence of handling practices on behavior and performance of feedlot cattle
… management practices were surveyed in commercial feedlots to document compliance of select feedlots with Beef Quality Assurance (BQA) guidelines for cattle handling under the premise that this data warrants inclusion in the National Beef Quality Audit (NBQA). The BQA Feedyard Assessment for cattle …
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Concentrated Animal Feeding Operations: Hazards, Environmental and Health Risks as the Latent Products of Late Modernity
… of thousands of animals in confined cages and feedlots, feed them high calorie diets, and ship them to slaughter in record time. These factory farms (as they are sometimes called) devastate neighboring environments with the releases of toxic methane gas and animal waste. Progress in modernized …
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Escherichia coli O157:H7 lineage persistence and colonization of cattle in vitro
… may increase the persistence of these strains in feedlots via re-infection and increased shedding. This outcome could increase the transmission of lineage I strains to the food supply and increase the potential for these strains to cause human illness.
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Quantifying nutrient cycling and fate within an abandoned feedlot and adjacent wetlands
… of soils and groundwater beneath abandoned feedlots, but phosphorus can cause both short- and long term contamination, especially in well-drained carbonate and iron-rich soils associated with Concentrated Animal Feeding Operations. It is also hypothesized that a spectral vegetation index can …
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The Environmental Fate and transport of Trenbolone Acetate Metabolites in Agro-Ecosystems
… as 100-250 ng/L are predicted in runoff from feedlots, indicating that the risk of transport on feedlots is substantially larger compared to more diffuse rangeland or irrigated pasture sources.
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Manure management decision-making of cattle-feed growers in northeastern Colorado
… and surface waters, and crop-farmers near the feedlots are de facto manure managers. This study observes how farmers value manure and whether they frame manure as a waste disposal issue, as an important fertilizer resource, or both. This distinction places manure management in the overlap …
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