Browsing Dairy Day, 2004 by Author "Stevenson, J.S."

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Browsing Dairy Day, 2004 by Author "Stevenson, J.S."

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  • Inseminations at estrus induced by the presynch protocol before timed artification insemination
    Stevenson, J.S.; Phatak, A.P. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    A controlled field study examined conception rates after two timed-AI (TAI) breeding protocols conducted on two commercial dairy farms. Estrous cycles in postpartum lactating cows were presynchronized with two ...
  • Resynchronizing estrus and ovulation in open cows and heifers
    Stevenson, J.S.; Tiffany, S.M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    We compared outcomes of two protocols used to resynchronize estrus and ovulation in dairy females after found open at pregnancy checks. Replacement heifers and lactating cows in which AI occurred 41 ± 1 day earlier ...