Browsing Dairy Day, 1997 by Author "Smith, John F., 1962-"

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Browsing Dairy Day, 1997 by Author "Smith, John F., 1962-"

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  • Smith, John F., 1962-; Shirley, John E.; Titgemeyer, Evan C. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2011-05-12)
    Two hundred cows located on a commercial dairy in Mesquite, NM were used to evaluate response to rbST (Posilac®) during heat stress in the summer of 1996. Cows were paired by days in milk (average = 153 d at initiation of ...
  • Smith, John F., 1962-; Jones, G. A.; Harner, Joseph P. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2011-05-06)
    The design and management of freestall 4) air or vision. facilities are critical in maintaining cow comfort and high milk production. Dairy produc- Lunge Space ers should be conscious of the factors affecting cow comfort ...
  • Smith, John F., 1962- (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2011-05-12)
    Dairy farm size is increasing in all regions of the United States. In two of the largest dairy states, California and Wisconsin, mean herd sizes have increased 950% and 250%, respectively, since 1950. Dairy herds of 500 ...
  • Stevenson, Jeffrey S.; Thompson, K. E.; Smith, John F., 1962-; Hawkins, D. E. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2011-07-22)
    Two experiments were performed using the same treatments. All heifers received two injections of PGF[subscript]2alpha 14 days apart. Controls then were inseminated after detected estrus. Heifers assigned to the two ...

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