Browsing Cattlemen's Day by Subject "Synchronization"

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Browsing Cattlemen's Day by Subject "Synchronization"

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  • Middleton, C.; Brink, T.; Kiracofe, G.; Brethour, J.; Negus, R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-12-10)
    Conception rates and subsequent calving dates were compared between cows synchronized with Syncro-Mate-B® and inseminated by appointment and nonsynchronized cows bred by natural service. Average conception date was ...
  • DeBenedetti, R.C.; Kiracofe, G.H.; Ward, H.S.; McKee, R.M. (Kansas State University. Agricultural Experiment Station, 2011-03-04)
    One hundred seven of 112 heifers were in estrus 1 to 5 days after an injection of prostaglandin F2α given when a 7-day synchronization implant was removed. Checks for estrus were made every four hours and heifers were ...
  • Boyd, G.W.; Patterson, D.J.; Corah, L.R.; Brethour, J.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-12-03)
    Three trials were conducted in the spring of 1985 to evaluate the effectiveness of MGA feeding and Prostaglandin (PGF) injection on estrus induction and synchronization. Trials 1 and 2 were both done on a Kansas ranch and ...
  • Perry, R.C.; Boyd, G.W.; Goehring, T.B.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-12-01)
    Four trials were conducted to evaluate the effectiveness of Melegestrol Acetate (MGA ®) and prostaglandin (PGF) in inducing and synchronizing estrus. In trial 1, treated heifers were fed MGA for 7 days and given a ...
  • Lamb, G.C.; Miller, B.L.; Traffas, V.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-09-02)
    In April, 1996, 1501 yearling crossbred heifers located on seven different ranches were estrus-synchronized and artificially inseminated (AI) 12 hours after they were detected in estrus. Herd size ranged from 82 to 43 ...
  • King, M.; Kiracofe, G.H.; McKee, R.M. (Kansas State University. Agricultural Experiment Station, 2011-02-08)
    With heifers given two injections of Lutalyse 11 days apart, and inseminated 80 hours after the second injection, only 20% in heat before 48 hours conceived compared with 65% that were in heat 48 to 80 hours after injection. ...
  • Nix, D.W.; Lamb, G.C.; Traffas, V.; Corah, L.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-08-24)
    Weanling Angus × Hereford heifers were purchased by a commercial heifer development operation from 12 sources. Heifers were fed a silage-based diet through an initial developmental period and then were retained or ...
  • Morrison, D.G.; Kiracofe, G.H.; Heersche, G. Jr.; Schalles, R.R.; McKee, M. (Kansas State University. Agricultural Experiment Station, 2011-03-04)
    Eighty-three cows were each treated with a nine-day Syncro-mate B ear implant and one estrogen and progesterone injection. After implant removal, cows were artificially inseminated either 48, 54 or 60 hours later or 12 ...
  • Heekin, M.D.; Kiracofe, G.H.; Schalles, R.R.; Ward, H.S. (Kansas State University. Agricultural Experiment Station, 2011-03-04)
    We used 76 cows to determine the effect of inseminating at different times after detecting estrus and to evaluate Synchronization B as an estrus synchronizing agent. Cows were divided into five groups: (1) nonsynchronized ...
  • Heekin, M.; Kiracofe, G.H.; Hultine, V.; Schalles, R.R.; McKee, R.M. (Kansas State University. Agricultural Experiment Station, 2011-03-04)
    We used 79 cows to evaluate Syncromate B (G.D. Searle, Co.) as an estrus-synchronizing agent. Management of five groups of cows was: (1) nonsynchronized, bred naturally; (2) nonsynchronized, bred artificially; (3) synchronized, ...
  • Heersche, G.; Kiracofe, G.H.; McKee, R.M.; Morrison, D.G. (Kansas State University. Agricultural Experiment Station, 2011-03-04)
    Estrous synchronization would benefit the cattle industry. Successful methods are not commercially available, so new compounds and treatment procedures are being tested. Treatment with melengestrol acetate, prostaglandin, ...
  • Wickersham, T.A.; Cochran, R.C.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2010-08-06)
    Our purpose was to determine if feeding melengesterol acetate (MGA) for 1 week in combination with gonadotropin-releasing hormone (GnRH) and prostaglandin-F2" (PGF) would better synchronize heifers for timed artificial ...

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