Browsing College of Agriculture by Author "Eborn, D.R."

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Browsing College of Agriculture by Author "Eborn, D.R."

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  • Eborn, D.R.; Freneau, G.E.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2006)
    Previous research has shown that the 7-11 Cosynch protocol using melengestrol acetate (MGA) is effective in synchronizing beef heifers. This study compared MGA and a vaginal insert containing progesterone (CIDR) in ...
  • Burns, M.G.; Buttrey, B.S.; Eborn, D.R.; Larson, J.E.; Lovaas, B.J.; Lamb, G.C.; Stevenson, Jeffrey S.; Olson, K. C. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2007)
    Two experiments were conducted to evaluate the difference between gonadotropinreleasing hormone (GnRH) and human chorionic gonadotropin (hCG) given at the beginning of a timed AI protocol and their effects on fertility. ...
  • Eborn, D.R.; Moser, Daniel W. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)
    Field data from the North American Limousin Federation was used to determine the heritability and genetic correlations of body condition score (BCS) with carcass traits. Carcass traits included carcass weight, ribeye ...
  • Eborn, D.R.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2007)
    The use of artificial insemination can improve genetics, shorten the calving season, and increase weaning weights by having more calves born earlier in the breeding season. Reasons that this technology has not been used ...
  • Eborn, D.R.; Spiker, C.R.; Sullivan, R.R.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2009)
    Two aims of heifer estrus synchronization protocols are to induce prepubertal heifers to start cycling by the beginning of the breeding season and to shorten time spent in estrous detection. Use of progestins such as ...
  • Eborn, D.R.; Blair, E.E.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2011)
    The EAZI-BREED CIDR is commonly used in estrous synchronization protocols for both beef heifers and cows. The label calls for insertion of a progesterone-impregnated controlled internal drug release (CIDR) for 7 consecutive ...
  • Portaluppi, M.A.; Tenhouse, D.E.; Lloyd, A.; Eborn, D.R.; Kacuba, S.; DeJarnette, J.M; Stevenson, Jeffrey S. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2006)
    We hypothesized that increasing concentrations of progesterone after artificial insemination (AI) would increase fertility. Our objective was to assess changes in ovarian structures, incidence of ovulation, and change in ...
  • Keenan, L.D.; Moser, Daniel W.; Eborn, D.R.; Marston, T.T. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)
    Approximately 280 Simmental- and Hereford- sired feedlot steers were ultrasonically evaluated for intramuscular fat deposition using CPEC and Critical Vision, Inc. (CVI) ultrasound systems. Warner-Bratzler shear force ...
  • Thompson, A.W.; Eborn, D.R.; Keenan, L.D.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2004)
    Recently, a new product, Eazi-Breed CIDR (a vaginal insert containing progesterone), was approved for estrus synchronization in beef heifers. In previous studies the CIDR has produced excellent estrus synchrony, but it ...
  • Thompson, A.W.; Holladay, C.D.; Eborn, D.R.; Grieger, David M. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2003)
    Previous research demonstrated that an estrus-synchronization program using a short period of melengestrol acetate (MGA) feeding in conjunction with a Cosynch protocol was effective in synchronizing estrus in postpartum ...
  • Grieger, David M.; Holladay, C.D.; Eborn, D.R. (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2002)
    Our purpose was to determine if giving an additional injection of GnRH to beef heifers synchronized with the Cosynch protocol would increase pregnancy rate to timed A.I. Eighty yearling beef heifers received an injection ...