Browsing by Author "Smith, J.F."

K-REx Repository

Browsing by Author "Smith, J.F."

Sort by: Order: Results:

  • Opportunities with low profile cross ventilated freestall facilities
    Smith, J.F.; Harner, J.P.; Bradford, B.J.; Overton, M.W. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2008)
    Low profile cross ventilated freestall buildings are one option for dairy cattle housing. These facilities allow producers to control the cows’ environment during all seasons of the year. As a result, an environment ...
  • Performance of lactating dairy cattle in three different cooling systems
    Meyer, M.J.; Smith, J.F.; Harner III, J.P.; Shirley, J.E.; titgemeyer, E.C. (Kansas Agricultural Experiment Station and Cooperative Extension Service., 1998)
    Ninety-six Holstein multiple-lactation cows averaging 115 days in milk (DIM) and 60 Holstein first-lactation cows averaging 97 DIM at the initiation of a 10-wk study between June 10 and August 22, 1998 were used to ...
  • Planning milking facilities for dairy expansion
    Smith, J.F. (Kansas Agricultural Experiment Station, 1996)
    Construction of a new milking center or remodeling existing milking parlors is a very important decision that can dramatically affect the labor efficiency and profitability of a dairy. Dairy producers should set ...
  • Preventive health programs for dairy cattle
    Stokka, G.L.; Smith, J.F.; Dunham, J.R.; Van Anne, T. (Kansas Agricultural Experiment Station, 1996)
    Always consult your veterinarian when making vaccination decisions. The most common errors are failing to give booster immunizations and doing so at the incorrect time. Animal comfort is a greater determinant of production ...
  • Reducing bovine leukosis in dairy cattle
    Shirley, J.E.; Smith, J.F.; Stokka, G.L.; Scoby, R.K; Van Anne, T. (Kansas Agricultural Experiment Station, 1996)
    Bovine leukosis virus (BLV) is a cancerous condition of tissues in which lymph nodes and lymphocytes are affected. Infected cattle may be identified by testing blood sera for BLV antibodies using the agar gel ...
  • Responses of lactating holstein cows to differing levels and direction of supplemental airflow
    Brouk, M.J.; Harner, J.P.; Smith, J.F.; Miller, W.F.; Cvetkovic, B. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    Seven heat-stressed, lactating Holstein cows were exposed to six different cooling systems to evaluate the effects of air velocity and direction of airflow. Cows were arranged in a 7 × 7 Latin-square design. Six ...
  • Responses of lactating holstein cows to increasing amounts of wet corn gluten feed
    Brouk, M.J.; Smith, J.F.; Grigsby, K. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2006)
    Forty lactating Holstein cows were allocated into groups of 5 cows each and assigned to 8 pens containing 10 freestalls each. Each group contained 3 heifers and 2 multiparous cows. Groups were balanced by milk production ...
  • Responses of lactating holstein cows to low-pressure soaking or high-pressure misting during heat stress
    Brouk, M.J.; Harner, J.P.; Smith, J.F.; Miller, W.F.; Cvetkovic, B. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    Lactating dairy cattle were used to evaluate three different cooling systems. Eight cows were arranged in a replicated Latinsquare design and assigned to each of four treatments. Treatments were control, lowpressure soaking ...
  • Sampling techniques for and interpretation of milk urea nitrogen concentration
    Shirley, J.E.; Scheffel, M.V.; Park, A.F.; Smith, J.F.; Rozell, T.G.; Stevenson, J.S. (Kansas Agricultural Experiment Station and Cooperative Extension Service., 1998)
    Representative MUN values can be obtained by testing a milk sample before milking, at AM or PM milking, or with an in-line siphon sampling device. MUN values obtained from homogenous milking strings are as accurate ...
  • Serological responses in dairy calves to various vaccines administered via needle-free or conventional needle-based injections
    Hollis, L.C.; Smith, J.F.; Johnson, B.J; Kapil, S.; Mosier, D.A. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2005)
    One hundred and four, 5- to 10-month-old Holstein heifers and steers were blocked by age within gender and randomly assigned to treatments. Calves were vaccinated with 5- way modified-live respiratory viral ...
  • Serological responses to IBR viral vaccine and Mannheimia haemolytica bacterin/leukotoxoid administered with needle-free injection technology
    Hollis, L.C.; Smith, J.F.; Johnson, B.J.; Kapil, S.; Mosier, D.A. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2005)
    Yearling steers were randomized to treatment and vaccinated with 5-way modified live viral vaccine and Mannheimia haemolytica bacterin/toxoid by using either needle-free or standard needle injection. Blood samples were ...
  • Temperature changes in a low-profile, cross-ventilated building in the high plains
    Harner, J.P.; Smith, J.F. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    Performance of an evaporative cooling system was evaluated in the High Plains in a low-profile, cross-ventilated dairy facility housing 4,200 lactating cows. The temperature decrease across the 6-inch cellulose evaporative ...
  • 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 ...
  • Using vaginal temperature to evaluate heat stress in dairy cattle
    Brouk, M.J.; Cvetkovic, B.; Smith, J.F.; Harner, J.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2005)
    A rise in body temperature is a signal that heat stress has exceeded the heat-exchange capacity of the dairy cow. Previous studies have shown a strong positive correlation between vaginal temperature and respiration rate, ...