Browsing Dairy Day, 2009 by Title

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Browsing Dairy Day, 2009 by Title

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  • Impact of evaporative pads and cross ventilation on core body temperature and resting time of lactating cows
    Smith, John; Bradford, Barry; Harner, Joe (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    A trial was conducted to determine the impact of evaporative cooling pads on core body temperature (CBT), time spent lying, and number of lying bouts of Holstein cows housed in cross-ventilated freestall facilities. ...
  • Impact of supplemental phosphorus source on phosphorus utilization in lactating dairy cattle
    Brouk, Micheal; Bradford, Barry; Harner, Joe (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    Supplemental phosphorus (P) in various forms and sources (pellet, meal, liquid, and corn dried distillers grains with solubles; DDGS) were compared in 12 multiparous Holstein cows producing 94.8 lb of milk (115 ± 55 days ...
  • Influences of heat stress on serological response and performance of dairy calves
    Brouk, Micheal; Hollis, Larry (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    Objectives of this study were to investigate the possible effects of heat stress on calf growth and the development of active immunity. Eighteen heifer calves born between July 21 and August 24, 2008, were housed in ...
  • Land Requirements for Freestall Dairy Facilities
    Harner, J.P.; Smith, J.F. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    Existing blueprints were used to estimate land requirements for new dairy facilities. The average land requirement for constructing a new dairy complex with freestall housing and a new parlor is 915 ft2 per lactating ...
  • Luteolysis and pregnancy outcomes in dairy cows after treatment with estrumate or lutalyse
    Stevenson, Jeffrey (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    In Experiment 1, lactating dairy cows (n = 1,230) in 6 herds were treated with 2 injections of prostaglandin F2α (PGF2α) 14 days apart (Presynch), with the second injection administered 12 to 14 days before the onset of a ...
  • 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 ...
  • Water consumption of an evaporative cooling system in the midwest
    Harner, Joe; John, Smith (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    Water meters were installed on the evaporative cooling system of a long, low-profile, cross-ventilated dairy in the upper Midwest. The evaporative pad along the west side measured 10 by 350 ft. The water usage per unit ...