Physiology and Endocrinology: Reproduction in cattle

Section: Physiology and Endocrinology
Format: Orals
Day/Time: Tuesday 9:30 AM–12:30 PM
Location: Panzacola H-4
Chair: Alexandre Souza, Ceva Sa├║de Animal Brazil
Please note: last-minute changes to the program may not be reflected here.
9:30 AM
#442 Comparison of TAI at GnRH injection and delayed insemination of non-estrus beef heifers.
Hazy R. Nielson
9:45 AM
#443 Bee Synch for synchronization and fixed-time AI of Bos indicus-influenced cows: An update.
Gary L. Williams
10:00 AM
#444 Effect of MGA versus CIDR estrus synchronization on estrus response and pregnancy rates in 311-d-old beef heifers.
Hazy R. Nielson
10:15 AM
#445 Variation in timed-AI pregnancy rates in beef sires.
Bo R. Harstine
10:30 AM
#446 Effect of decreasing the duration of a PRID-synch protocol and addition of a second prostaglandin F treatment on fertility after resynchronization of ovulation in lactating Holstein cows.
V. G. Santos
10:45 AM
#447 Evaluating blood perfusion of the corpus luteum in beef cows during fescue toxicosis.
Garrett F. Cline
11:00 AM
#448 Improved fertility of cows failing to respond to resynchronization of ovulation through presynchronization of ovulation or progesterone supplementation.
Julio O. Giordano
11:15 AM
#449 Interferon-tau and progesterone down-regulate cytochrome P450 1A and 2C in bovine endometrial epithelial cells.
Caleb O. Lemley
11:30 AM
#450 Epidermal growth factor promotes interferon-tau expression in bovine trophectoderm.
Sarah R. McCoski
11:45 AM
#451 Effects of label-dose permethrin administration on reproductive function in superstimulated beef heifers.
Tyler M. Dohlman
12:00 PM
#452 Effects of tamoxifen on pre-pubertal heifer reproductive tissues: Potential for disruption of tract development through alteration of related signaling pathways.
Abdullah Al Naib
12:15 PM
#453 Effects of label-dose permethrin administration on reproductive function and testicular histopathology in yearling bulls.
Tyler M. Dohlman