Browsing Dairy by Subject "Lactation"

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Browsing Dairy by Subject "Lactation"

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  • Early lactation somatic cell count should be low
    Dunham, J.R. (Kansas Agricultural Experiment Station, 1987)
    Cows and heifers in milk for fewer than 50 days, as shown on the DHIA Somatic Cell Count report, should have a lower average Somatic Cell Count than cows in milk for more than 300 days, if the dry cow mastitis treatment ...
  • Feeding and managing early lactation cows
    Dunham, J.R. (Kansas Agricultural Experiment Station, 1987)
    Feeding and managing dairy cows during the prepartum and early lactation periods have more effect on total lactation yields than all other factors. It is during this time that the pattern of milk production is established ...
  • High inclusion rate of wet corn gluten feed on performance of late-lactation holstein cows: preliminary results
    Rezac, D.J.; Grigsby, K.N.; Bradford, B.J. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2008)
    A novel diet formulation strategy incorporating wet corn gluten feed at 47% of diet dry matter was evaluated in late-lactation cows. Diets were formulated for similar protein and energy concentrations with dramatic ...
  • Influence of prebreeding progesterone plus prostaglandin F2-alpha on estrus and fertility in lactating dairy cows
    Mee, M.O.; Stewart, R.E.; Stevenson, J.S.; Call, E.P. (Kansas Agricultural Experiment Station, 1987)
    Progesterone administered before breeding may increase estrous expression and subsequent fertility in lactating dairy cows. Holstein cows (n=302) were assigned randomly at calving to three groups. Cows received no ...
  • Introducing a computer feeding system at various lactational stages for dairy cows
    Kube, J.C.; Shirley, J.E.; Frantz, K.D.; Stevenson, J.S. (Kansas Agricultural Experiment Station, 1986)
    Lactating dairy cows were introduced to a computer feeder in early (≤120 days in milk or D.I.M.), mid (120-220 D.I.M.), and late (>220 D.I.M.) lactation. Cows in the mid- and late-lactation groups adjusted quicker and ...
  • Is a computer feeder necessary in the dry lot cow?
    Kube, J.C.; Shirley, J.E.; Frantz, K.D. (Kansas Agricultural Experiment Station, 1986)
    Springing heifers and dry cows were introduced to a computer feeder either 2 wk before their estimated freshening date or at calving. There was no significant difference in milk production, percentage milk fat, percentage ...
  • Update on gonadotropin-releasing hormone treatments for repeat breeders
    Stevenson, J.S. (Kansas Agricultural Experiment Station, 1987)
    In three of six studies involving over 1,650 cows, treatment of lactating dairy cows with 100 µg GnRH (2 cc Cystorelin®) at the time of third or fourth insemination improved conception rates by 12 percentage points. When ...
  • Whole-plant grain sorghum and inoculated corn silages in mid-lactation dairy cow diets
    Bolsen, K.K.; Shirley, J.E.; Laytimi, A.; Dickerson, J. (Kansas Agricultural Experiment Station, 1989)
    Whole-plant grain sorghum silage and Silo-Best-Soluble inoculated and uninoculated control corn silages were compared in complete-mixed diets for mid-lactation dairy cows. Cows fed the inoculated corn silage yielded .6 ...