Research

Journals

Comparison of protocols to synchronize estrus and ovulation in estrous-cycling and prebuertal beef heifers.  J. Anim. Sci. 2008. 86:1808-1818.

Timing of artificial insemination in postpartum beef cows following administration of the CO-Synch + controlled internal drug-release protocol. J. Anim. Sci. 2008. 86:1519-1525

Comparison of progestin-based estrus synchronization protocols before fixed-time artificial insemination on pregnancy rate in beef heifers. J. Anim. Sci. 2007. 85:1933-1939

Comparison of progestin-based protocols to synchronize estrus and ovulation before fixed-time artificial insemination in postpartum beef cows. J. Anim. Sci. 2007. 85:1940-1945

Effects of prepartum lipid supplemenation on FSH superstimulation and transferable embryo recovery in multiparous beef cows. Anim. Reprod. Sci. 2005. 85:61-70

A comparison of progestin-based protocols to synchronize ovulation and facilitate fixed-time artificial insemination in postpartum beef cows. J. Anim. Sci. 2005. 83:136-143

Fixed-time artificial insemination of postpartum beef cows at 72 or 80 h after treatment with the MGA Select protocol. Theriogenology  2004. 61:1299-1305

Follicular dynamics and steroid profiles in cows during and after treatment with progestin-based protocols for synchronization of estrus. J. Anim. Sci. 2004. 82:1022-1028

Estrus synchronization in beef heifers with progestin-based protocols I. differences in response based on pubertal status at the initiation of treatment Theriogenology  2004.  62:1518 -1528

A comparison of progestin-based protocols to synchronize estrus in postpartum beef cows.
J. Anim. Sci. 2004. 82:1016-1021

Patterson, DJ, FN Kojima, and MF Smith.  2003.  A review of methods to synchronize estrus in replacement beef heifers and postpartum cows.  J. Anim. Sci.  81(E. Suppl.2): E166-177.  Online.  Available:  http://www.asas.org/symposia/03esupp2/jas2402.pdf. Accessed June 19, 2003.

Patterson, DJ, FN Kojima, and MF Smith.  2003.  Methods to synchronize estrous cycles of postpartum beef cows with melengestrol acetate. Prof. Anim. Sci.  19:109-115.

Evaluation of a fixed-time artificial insemination protocol for postpartum suckled beef cows
J. Anim. Sci. 2002. 80:3060-3064.

Improved synchrony of estrus and ovulation with the addition of GnRH to a melengestrol acetate-prostaglandin F2alpha synchronization treatment in beef heifers.
J. Anim. Sci. 2001. 79:2210-2216.

Development of an estrus synchronization protocol for beef cattle with short-term feeding of melengestrol acetate: 7-11 synch. J. Anim. Sci. 2000. 78:2186-2191.

Patterson, D. J., S. L. Wood, and R. F. Randle. 2000a. Procedures that support reproductive management of replacement beef heifers. Proc. Am.Soc. Anim. Sci., 1999. Available at:  http://www.asas.org/jas/symposia/proceedings/0902.pdf.  Accessed August 3, 2000.