Browsing Dairy by Title

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Browsing Dairy by Title

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  • Corbeil, L.B.; Watt, B.; Corbeil, R.R.; Betzen, T.G.; Brownson, R.K.; Morrill, J.L. (Kansas Agricultural Experiment Station, 1984)
    Immunoglobulin (Ig) concentrations in serurn and in nasal secretions were correlated with pneumonia and diarrhea during the first 12 wk of life of dairy calves. The peak onset of pneumonia occurred between 2 and 4 wk of ...
  • Call, Edward P. (Kansas Agricultural Experiment Station, 1985)
    Profit or loss in the dairy enterprise is dependent upon yearly production per cow and degree of capitalization. Higher producing cows convert feed into milk more efficiently. Cows of similar body size have similar ...
  • Strahm, T.; Harner, Joseph P.; Murphy, James P.; McCormack, G.; Smith, J.F.; Key, David V. (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 ...
  • Cvetkovic, B.; Shirley, John E.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    Twenty-four lactating Holstein cows were used to determine the production response to the inclusion of brown seaweed in the basal diet during summer heat stress. Cows were blocked by lactation number, days in milk, and ...
  • Smith, John F.; Bradford, Barry J.; Harner, Joseph P. (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. ...
  • Smith, J.F.; Armstrong, D.V.; VanBaale, M. J.; Bray, D.R.; Harner, Joseph P.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2005)
    Heat stress in hot and humid environments reduces milk production, decreases reproduction, and increases health-related problems. The summertime environment in north-central Florida is especially difficult because the ...
  • Dingwell, R.T.; Leslie, K.E.; Sargeant, J.M.; Schukken, Y.H.; Timms, L.L. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2001)
    A study of 250 cows located in Canada and the United States revealed the rate of new mammary infections was 9.9% during the dry period. Average milk production on the day prior to dry-off was 13.2 ± 7.2 kg. The odds ...
  • Harner, Joseph P.; Smith, J.F.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2007)
    Separator efficiency and moisture content of separated solids influence the make-up water requirements on a dairy seeking to utilize recycled water for sand reclamation. Additional water requirements range from 0 to 79 ...
  • Harner, Joseph P.; Smith, J.F.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2007)
    Manning’s equation provides a method to evaluate the flow characteristics of a flush plume system used to move a diluted, sandladen manure stream from a freestall building to sand or solid separation equipment. Evaluation ...
  • Armstrong, D.V.; Smith, J.F.; Wuthironarith, V,; Harner, Joseph P.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    Ten multiparous lactating Holstein cows were arranged in a replicated 5 × 5 Latin Square design to evaluate the effect of soaking frequency and volume of water per soaking on lactating cows housed in a tunnel-ventilated and ...
  • Bradford, Barry J.; Harner, Joseph P.; Brouk, Michael J. (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 ...
  • Bolsen, K.K.; Young, Matthew A.; Siefers, M.K.; Huck, G.L. (Kansas Agricultural Experiment Station, 1995)
    Results at Kansas State University from over 200 laboratory-scale trials and 28 farmscale trials showed that bacterial inoculants consistently improved preservation efficiency and nutritive value of the ensiled material. ...
  • Gaines, J.; Galland, J.; Leedle, J.; Basaraba, R.; Anderson, David E. (Kansas Agricultural Experiment Station, 1993)
    Digital papillomatosis (hairy warts) was diagnosed in a dairy herd with a high level of lameness (20%). Warts ranged from mild to moderate to severe, with severity increasing with length of lactations. All milking ...
  • Scheffel, M.E.; Shirley, John E. (Kansas Agricultural Experiment Station, 1995)
    Twenty-four Holstein cows were used to study the effect of dietary fat on milk production and metabolic traits. Whole cottonseed and tallow were used as fat sources and substituted into the control diet on an ...
  • Stevenson, Jeffrey S.; Shirley, John E. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)
    Increased milking frequency during partial or whole lactations increases milk yields, but generally reduces percentages of milk fat and protein. Because of greater milk volume, total fat and protein are not reduced. ...
  • Cartmill, J. A.; Rozell, Timothy G.; El-Zarkouny, S. Z.; Smith, J. F.; Stevenson, Jeffrey S. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 1999)
    Cows exposed to heat stress before or after calving or both are prone to reduced fertility because of reduced expression of estrus and less embryonic survival if pregnant. Cows calving on three dairy farms during the ...
  • Stewat, R.E.; Mee, M.O.; Rettmer, I.; Stevenson, Jeffrey S. (Kansas Agricultural Experiment Station, 1992)
    Low thyroid activity (hypothyroidism) has been reported to decrease sexual behavior associated with reproduction in several species. Using estradiol benzoate (EB) and progesterone (P ), we attempted to induce 4 estrus ...
  • Potts, J.P.; Brouk, Michael J. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2011)
    Fresh water pumping records were obtained from 24 western Kansas dairy farms for a 10-year period from 2000 through 2009. Farms were divided by facility type: dry lot (DL), free stall (FS), or a combination (DL+FS). Of ...
  • Harner, Joseph P.; Smith, J.F.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2006)
    A model was developed to evaluate the impact of facilities on cow time budgets. The model suggests that in inadequate facilities overcrowding of the facility by 25% or more resulted because occupancy rate exceeded 100%. ...
  • Smith, J.F.; Harner, Joseph P.; Brouk, Michael J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2001)
    A trial was conducted during the summer of 2000 to evaluate the effect of freestall building orientation—east-west vs. northsouth— on respiration rates of lactating dairy cows, temperature-humidity index (THI) in the ...