Browsing by Author "Murphy, J.P."

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Browsing by Author "Murphy, J.P."

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  • Beef cattle lagoon seepage
    Murphy, J.P.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1998)
    Most compacted soils can be used for lagoon liners to achieve seepage guidelines established by the Kansas Department of Health and Environment.
  • Buildings for early-weaned pigs
    Murphy, J.P.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1995)
    Buildings for early-weaned pigs present several challenges to designers and building/equipment manufacturers, but the ability to provide the optimum environmental conditions for the small pig is within the reach of ...
  • Composting dead swine
    Murphy, J.P.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1998)
    Composting dead animals from a swine production facility offers an environmentally sound disposal method to many producers
  • Drip cooling of lactating sows
    Nichols, D.A.; Murphy, J.P.; Vic Robbins, F. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1983)
    Twenty eight sows and gilts were used to evaluate the value of drip sprinkling to reduce heat stress in lactating sows. Respiration rates for sprinkled sows were significantly lower than those of controls. Daily feed intake ...
  • Effect of weekly temperature reduction on nursery pig performance
    Nichols, D.A.; Johnston, M.; Blecha, Frank; Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1985)
    A total of 64 pigs were used to evaluate the effect of weekly temperature reductions. No differences were observed between treatments for average daily feed intake, daily gain, or feed efficiency. Pigs exposed to cooler ...
  • Endotoxin, ammonia, and total and respirable dust in swine confinement buildings: the effect of recirculated air and respiratory protective masks
    Pickrell, J.A.; Heber, A.J.; Murphy, J.P.; May, M.M.; Nolan, D.; Oehme, F.W.; Schoneweis, D.; Gillespie, J.R.; Henry, S.C. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1992)
    Caretakers and pigs in dusty environments with particles and toxic gases may sustain health consequences. We studied concentrations of ammonia, endotoxin, and total and respirable dust particles in four mechanically ...
  • Feed mills for on-farm feed manufacturing
    Murphy, J.P.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1990)
    Quality feed can be manufactured on farm using hammer or roller mills for particle size reduction and volumetric or weighing devices for proportioning ingredients. An understanding of each of the seven steps involved ...
  • Flushing sand-laden manure
    Harner, J.P.; Strahm, T.D.; Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2000)
    Sand can be handled successfully either in a scrape or flush system by developing handling systems that allow for the sand-laden manure to settle prior to the effluent entering a lagoon. The abrasiveness and density ...
  • Impact of dairy manure addition on soil nutrients in northeast and south central Kansas
    Strahm, T.; Harner, J.P.; Murphy, J.P.; Key, D.V.; McCormack, G.; Smith, J.F. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2001)
    Sixty four percent of the fields (14 of 22) in northeast and south central Kansas would be able to apply dairy manure on a nitrogen basis if the current swine manure application regulations were adopted. Due to high ...
  • Influence of supplemental light on sow performance during and after lactation
    Stevenson, J.S.; Pollmann, D.S.; Davis, D.L.; Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1982)
    A study involving 327 crossbred sows was conducted to determine whether providing supplemental light in farrowing rooms would influence litter weight, number of pigs weaned, piglet survival rate, and subsequent rebreeding ...
  • Kansas environmental regulations
    Murphy, J.P.; Harner, J.P.; Hess, L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1995)
    The Kansas Department of Health and Environment (KDHE) enforces two different regulation s in the state of Kansas. One set of regulation s is from the Federal Environmental Protection Agency (EPA) and applies to ...
  • Lagoon seepage through soil liners
    Murphy, J.P.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1997)
    Most compacted soils can be used for lagoon liners to achieve seepage guidelines established by the Kansas Department of Health and Environment.
  • Low investment farrowing facilities
    Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1988)
    Low investment farrowing facilities can be divided into three categories, depending on the level of investment. At the lowest investment level, an individual farrowing shelter that has no floor is utilized. The shelter ...
  • Manure and lagoon nutrients from dairies using flush systems
    Strahm, T.D.; Harner, J.P.; Key, D.V.; Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2000)
    Nine primar,y lagoons and solids storage basins were sampled on Kansas dairies using flush systems. These samples were analyzed for nutrient content of wastewater and sand manure. The manure moisture content in ...
  • Manure storage structures for small dairies
    Harner, J.P.; Murphy, J.P. (Kansas Agricultural Experiment Station, 1994)
    Kansas environmental regulations require dairy producers with more than 300 animal units (215 mature cows at 1,400 lb, or equivalent weight) to be able to store the manure scraped from freestalls, lots, alleys, and ...
  • Nutrient composition of Kansas swine lagoons and hoop barn manure
    DeRouchey, J.D.; Goodband, R.D.; Nelssen, J.L.; Tokach, M.D.; Dritz, S.S.; Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2001)
    A total of 236 lagoon and 35 hoop barn manure samples were collected during 2000 from Kansas swine operations to determine the effects of production phase and season of the year on their nutrient concentration. Lagoon ...
  • Runoff compliance for Kansas cattle feedlots
    Murphy, J.P.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1999)
    As the demand grows for cleaner water, feedlots will need to reduce and control the nutrient and sediment loading of runoff. Existing confined feedlots will need to evaluate their runoff potential. Costs of controlling ...
  • Runoff control from dirt lots
    Harner, J.P.; Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1991)
    A recent water quality survey assessment found nonpoint source pollution problems in a majority of Kansas surface waters - 85% of the monitoring sites were impaired by nutrients, 60% of the sites by bacteria, 55% by ...
  • Swine Manure Management
    Murphy, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 1996)
    Manure nutrients help build and maintain soil fertility. Manure also improves tilth, increases waterholding capacity, lessens wind and water erosion, improves aeration, and promotes beneficial organisms. When wastes include ...
  • Tower tank valve flushing system for dairy facitlites
    Harner, J.P.; Murphy, J.P.; Smith, J.F. (Kansas Agricultural Experiment Station and Cooperative Extension Service., 1998)
    Flushing characteristics of a tower tank valve flushing system with a 12-inch-diameter manual valve were determined. Data were obtained using the outside cow alleys in a fourrow freestall barn. The alleys were 12 ft ...