Browsing Dairy by Subject "Lactation"

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Browsing Dairy by Subject "Lactation"

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  • 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 ...
  • Vargas, Francisco J.; Yuan, Kai; Titgemeyer, Evan C.; Mamedova, Laman; Bradford, Barry J. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2013)
    Feeding chromium in early lactation can increase milk production, but responses during peak lactation have not been studied. The objective of this study was to evaluate responses to chromium propionate during this period ...
  • 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 ...
  • Rezac, D.J.; Grigsby, K.N.; Bradford, Barry 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 ...
  • Bradford, Barry J. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2012)
    In the past, efforts to improve the transition to lactation have focused largely on preventing infections and maximizing energy intake in transition cows, and these issues have generally been treated independently. New ...
  • Mee, M.O.; Stewart, R.E.; Stevenson, Jeffrey S.; Call, Edward 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 ...
  • Kube, J.C.; Shirley, John E.; Frantz, K.D.; Stevenson, Jeffrey 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 ...
  • Kube, J.C.; Shirley, John 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 ...
  • Vargas, C. F.; Reinhardt, Christopher D.; Firkins, J. L.; Bradford, Barry J. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2012)
    A meta-analysis was performed to determine the possible effects of dietary sugar on feed intake and milk production in lactating dairy cattle. The database used in this analysis included 18 treatment comparisons frozm ...
  • Farney, Jaymelynn K.; Mamedova, Laman; Minton, J. Ernest; Coetzee, J. F.; Hollis, Larry C.; Bradford, Barry J. (Kansas Agricultural Experiment Station and Cooperative Extension Service, 2012)
    Inflammation has been proposed as a contributor to metabolic disorders in transition dairy cows. The purpose of this experiment was to determine if a non-steroidal anti-inflammatory drug, sodium salicylate (SS), benefits ...
  • Stevenson, Jeffrey 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 ...
  • Bolsen, K.K.; Shirley, John 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 ...