Animal Reproductive Biology Group

Dave Patterson

Professor
Animal Science

Phone: 573-882-7519
E-mail: PattersonD@missouri.edu
Address: 132 Animal Science Research Center

Education

B.S., Montana State University
M.S., Montana State University
Ph.D., Kansas State University

Research Focus

Development of methods of estrous cycle control for beef cows and heifers

Research Description

Patterson's research focus is on the development and evaluation of economical methods of estrous cycle control for replacement beef heifers and postpartum suckled beef cows.

Specifically, Patterson is working on the development of estrus synchronization for peripubertal beef heifers with melengestrol acetate (MGA), gonadotropin releasing hormone (GnRH), and prostaglandin F2a (PGF2a).

In addition, Patterson is developing a protocol for cycling and anestrous postpartum beef cows that will effectively synchronize estrus and ovulation to allow for artificial insemination at a fixed time.

Finally, Patterson is also developing a supplementation program that will enhance response to estrus synchronization through improvements in cyclicity rates of heifers and cows at the start of the breeding period.

Recent Publications

Bader JF, Kojima FN, Schafer DJ, Stegner JE, Ellersieck MR, Smith MF, Patterson DJ.
A comparison of progestin-based protocols to synchronize ovulation and facilitate fixed-time artificial insemination in postpartum beef cows. J Anim Sci. 2005 Jan;83(1):136-43. PMID: 15583053
Bader JF, Kojima FN, Wehrman ME, Lindsey BR, Kerley MS, Patterson DJ.
Effects of prepartum lipid supplementation on FSH superstimulation and transferable embryo recovery in multiparous beef cows. Anim Reprod Sci. 2005 Jan;85(1-2):61-70. PMID: 15556309
Wood-Follis SL, Kojima FN, Lucy MC, Smith MF, Patterson DJ.
Estrus synchronization in beef heifers with progestin-based protocols. I. Differences in response based on pubertal status at the initiation of treatment. Theriogenology. 2004 Nov;62(8):1518-28. PMID: 15451259
Stegner JE, Kojima FN, Bader JF, Lucy MC, Ellersieck MR, Smith MF, Patterson DJ.
Follicular dynamics and steroid profiles in cows during and after treatment with progestin-based protocols for synchronization of estrus. J Anim Sci. 2004 Apr;82(4):1022-8. PMID: 15080323
Stegner JE, Kojima FN, Ellersieck MR, Lucy MC, Smith MF, Patterson DJ.
A comparison of progestin-based protocols to synchronize estrus in postpartum beef cows. J Anim Sci. 2004 Apr;82(4):1016-21. PMID: 15080322
Stegner JE, Bader JF, Kojima FN, Ellersieck MR, Smith MF, Patterson DJ.
Fixed-time artificial insemination of postpartum beef cows at 72 or 80 h after treatment with the MGA Select protocol. Theriogenology. 2004 May;61(7-8):1299-305. PMID: 15036964
Borman JM, Radcliff RP, McCormack BL, Kojima FN, Patterson DJ, Macmillan KL, Lucy MC.
Synchronisation of oestrus in dairy cows using prostaglandin F2alpha, gonadotrophin-releasing hormone, and oestradiol cypionate. Anim Reprod Sci. 2003 Apr 15;76(3-4):163-76. PMID: 12586490
Perry GA, Smith MF, Patterson DJ.
Evaluation of a fixed-time artificial insemination protocol for postpartum suckled beef cows. J Anim Sci. 2002 Dec;80(12):3060-4. PMID: 12542144
Perry GA, Kojima FN, Salfen BE, Bader JF, Patterson DJ, Smith MF.
Effect of an orally active progestin on follicular dynamics in cycling and anestrous postpartum beef cows. J Anim Sci. 2002 Jul;80(7):1932-8. PMID: 12162662
A complete list of publications for DJ Patterson in PubMed