# positions[].organizations[].parent[].label
College of Agriculture and Life Sciences

# overview
Dr. Forrest teaches undergraduate courses in reproductive physiology and coordinates the curriculum and graduate studies for the department. He also conducts research to determine the hormonal mechanisms that control gonadal function and mating behavior through his appointment with Texas AgriLife Research.

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
1114 Paediatrics And Reproductive Medicine

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
30 Agricultural, Veterinary And Food Sciences

# keywords[]
Cyclic Nucleotide Phosphodiesterases, Type 3

# keywords[]
Reverse Transcriptase Polymerase Chain Reaction

# educationAndTraining[].organization.label
Abilene Christian University - (Abilene, Texas, United States)

# educationAndTraining[].organization.label
Texas A&M University - (College Station, Texas, United States)

# educationAndTraining[].organization.label
University of Wyoming - (Laramie, Wyoming, United States)

# awardsAndHonors[].label
Association of Former Students College-Level Teaching Distinguished Achievement Award, The

# publications[].label
Efficacy of short-term administration of altrenogest to postpone ovulation in mares

# publications[].label
Determining Treatment to Control Two Multidrug-Resistant Parasites on a Texas Horse Farm

# publications[].label
Predicting end-of-test semen quality in bulls prior to performance testing.

# publications[].label
Effects of nutritional level and biological type on gonadotropin-releasing hormone-induced luteinizing hormone release and plasma progesterone, estrone and estradiol concentrations in pre- and post-partum beef heifers.

# publications[].label
Synchrony and conception to insemination or embryo transfer in beef females treated with an intravaginal progesterone releasing device with or without an injection of estradiol

# publications[].label
Effects of early pregnancy diagnosis by palpation per rectum on pregnancy loss in dairy cattle.

# publications[].publisher
American Veterinary Medical Association (AVMA)

# publications[].label
Variances in Reproductive Efficiency of Mares in Fat and Moderate Body Conditions Following Parturition

# publications[].publisher
American Registry of Professional Animal Scientists

# publications[].label
Endocrine profile comparisons of fat versus moderately conditioned mares following parturition

# publications[].label
Testicular germ cell apoptosis and formation of the sertoli cell barrier during the initiation of spermatogenesis in pubertal stallions

# publications[].label
Effects of conventional or low bull to female ratio in extensively-managed, natural mating breeding groups.

# publications[].label
REAL-TIME ULTRASOUND EVALUATION OF FOLLICULAR DEVELOPMENT IN SUPEROVULATED COWS

# publications[].label
Improving fertility in beef cow recipients.

# publications[].label
Influence of Seminal, Physical, and Mating Behavior Traits of Bulls on Number of Calves Sired per Bull in a Multisire Herd

# publications[].publisher
American Registry of Professional Animal Scientists

# publications[].label
Apoptosis during the initiation of equine spermatogenesis

# publications[].label
Conception Rates in Beef Heifers at Four Time Intervals After Prostaglandin F2

# publications[].publisher
American Registry of Professional Animal Scientists

# publications[].label
Reproductive response to suckling manipulation in Spanish goats.

# publications[].label
Dietary Supplementation of Two Varying Sources of n-3 Fatty Acids and Subsequent Effects on Fresh, Cooled, and Frozen Seminal Characteristics of Stallions

# publications[].publisher
American Registry of Professional Animal Scientists

# publications[].label
The influence of exogenous estradiol on bobwhite quail (Colinus virginianus) reproductive systems.

# publications[].label
Temporal changes in histomorphology and gene expression in goat testes during postnatal development.

# publications[].label
VIABILITY OF EQUINE EMBRYOS FOLLOWING FLUORESCEIN DIACETATE STAINING

# publications[].label
Performance of Bos indicus-influenced bulls in serving capacity tests and multiple-sire breeding groups.

# publications[].label
Relationship between residual feed intake and onset of puberty in Brangus heifers.

# publications[].label
INTRACELLULAR LIPIDS WITHIN BOVINE EMBRYOS HAVE AN EFFECT ON CRYOTOLERANCE AND OVERALL EMBRYO VIABILITY POST-THAW

# publications[].label
Effect of norgestomet on peripheral levels of progesterone and estradiol-17beta in beef cows.

# publications[].label
Relationships between seminal vesicle size and copulatory activity in bulls.

# publications[].label
Early pregnancy diagnosis by palpation per rectum: influence on embryo/fetal viability in dairy cattle.

# publications[].label
Biological activity of luteinizing hormone in the peripartum cow: least activity at parturition with an increase throughout the postpartum interval.

# publications[].label
Response to comments on "Early pregnancy diagnosis by palpation per rectum: Influence on embryo/fetal viability in dairy cattle" by Juan E. Romano, et al. [Theriogenology 67 (2007) 486-493]

# publications[].label
Biological and immunological luteinizing hormone activity and blood metabolites in postpartum Brahman cows.

# publications[].label
Early pregnancy diagnosis by transrectal ultrasonography in dairy cattle.

# publications[].label
Phenotypic and genetic relationships of residual feed intake with performance and ultrasound carcass traits in Brangus heifers.

# publications[].label
Characterization of sperm and androgen production by testes from control and ponazuril-treated stallions

# publications[].label
Fertility-Associated Antigen in Peripubertal Beef Bulls

# publications[].publisher
American Registry of Professional Animal Scientists

# publications[].label
Ethanol alters vasoactive intestinal peptide-induced steroid release from immature rat ovaries in vitro.

# publications[].label
Measurements of glycosaminoglycans in follicular, oviductal and uterine fluids of mares.

# publications[].label
Artificial insemination outcomes in beef females using bovine sperm with a detectable fertility-associated antigen.

# publications[].label
Granulocyte-macrophage colony-stimulating factor reduces testicular germ cell apoptosis in vitro

# publications[].label
ONTOGENY OF OVARIAN INHIBITION OF PULSATILE LUTEINIZING-HORMONE SECRETION IN POSTNATAL HOLSTEIN HEIFERS

# publications[].label
Luteinizing hormone-releasing hormone gene expression in the bovine brain: anatomical localization and regulation by ovarian state.

# publications[].label
EFFECTS OF GNRH, A PROGESTIN AND OVARIECTOMY ON PLASMA-LH AND FSH IN BEEF HEIFERS

# publications[].label
Viability and ultrastructure of equine embryos following culture in a static or dynamic system.

# publications[].label
Early pregnancy diagnosis by palpation per rectum on embryo/fetus viability in dairy cattle

# publications[].label
Effects of transrectal palpation with the fetal membrane slip technique for early pregnancy diagnosis on the proportion and type of associated pregnancy loss in dairy cattle.

# publications[].publisher
American Veterinary Medical Association (AVMA)

# publications[].label
Temporal changes in histomorphology and gene expression in goat testes during postnatal development

# publications[].label
Apoptosis as a mechanism of germ cell loss in mature stallions

# publications[].label
Gonadotropin-releasing hormone-induced luteinizing hormone release in heifers: effect of nutrition during gestation.

# publications[].label
A NOTE ON FERTILITY OF CYCLIC BEEF FEMALES FOLLOWING ACUTE UNILATERAL OVARIECTOMY

# publications[].label
Correlation of in vivo testicle and seminal vesicle size with post mortem dimensions in bulls.

# publications[].label
Herbage allowance x yearling heifer phenotype interactions for preweaning calf growth on humid pasture and semiarid rangeland.

# publications[].label
Suckling inhibits release of luteinizing hormone-releasing hormone from the bovine median eminence following ovariectomy.

# publications[].label
Effect of abomasal infusion of propionate on the GnRH-induced luteinizing hormone release in prepuberal heifers.

# publications[].label
Ratios of serum concentrations of testosterone and progesterone from yearling bulls with small testes.

# publications[].label
The effects of growth factor on testicular germ cell apoptosis in the stallion

# publications[].label
THE EFFECTS OF FORSKOLIN ON BRAHMAN IN VIVO-PRODUCED EMBRYOS AND SUBSEQUENT PREGNANCY RATES POST-THAW

# publications[].label
Fertility-associated antigen on bull sperm indicates fertility potential.

# publications[].label
Methods for collecting follicular oocytes from mares.

# publications[].label
Reproductive performance of synchronized beef cows as affected by inhibition of suckling with nose tags or temporary calf removal.

# publications[].label
Reproductive performance of postpartum beef cows after short-term calf separation and dietary energy and protein supplementation.

# publications[].label
Early pregnancy diagnosis by transrectal ultrasonography in dairy cattle (vol 66, pg 1034, 2006)

# publications[].label
Preweaning growth of F1 tropically adapted beef cattle breeds x Angus and reproductive performance of their Angus dams in arid rangeland.

# publications[].label
Biological activity of LH during the peripartum period and the estrous cycle of the ewe.

# publications[].label
The concentration of estradiol-17 beta in bovine semen.

# publications[].label
Ovarian inhibition of peripheral plasma concentration of follicle stimulating hormone in prepuberal Holstein heifers.

# publications[].label
Identification and quantification of coding and long non-coding RNAs in stallion spermatozoa separated by density.

# publications[].label
Gestation nutrition, tissue exchange and maintenance requirements of heifers.

# publications[].label
Clinical observations on changes in concentrations of hormones in plasma of two stallions with thermally-induced testicular degeneration

# publications[].label
DNA microarray analysis of gene expression in testicular tissue of stallions

# publications[].label
Relationships between feed efficiency, scrotal circumference, and semen quality traits in yearling bulls.

# publications[].label
Efficacy of short-term administration of altrenogest to postpone ovulation in mares

# publications[].label
Temporal aspects of ovarian follicular growth and steroidogenesis following exogenous follicle-stimulating hormone in Angus heifers.

# publications[].label
Fixed-time insemination utilizing an EaziBreed (TM) CIDR (R) in combination with gonadotropin-releasing hormone or estradiol cypionate

# publications[].label
IMMUNOHISTOCHEMICAL LOCALIZATION OF LUTEINIZING-HORMONE RECEPTORS IN EQUINE OVARIAN FOLLICLES

# publications[].label
Germ cell apoptosis in the testes of normal stallions.

# publications[].label
EFFECT OF SUCKLING MANIPULATION ON POSTPARTUM REPRODUCTION IN PRIMIPAROUS BRAHMAN-CROSS COWS

# publications[].label
THE USE OF FORSKOLIN AND ITS EFFECT ON IN VITRO-PRODUCED BRAHMAN-SIRED EMBRYOS SUBMITTED TO SLOW COOL FREEZING OR VITRIFICATION

# publications[].label
Pregnancy rate in beef heifers after synchronization to either random or programmed estrous cycles.

# publications[].label
Utilization of reproductive tract scores in extensively-managed, natural mating breeding groups.

# publications[].label
THE EFFECT OF FORSKOLIN ON IN VITRO PRODUCED BRAHMAN-SIRED BOVINE EMBRYOS

# publications[].label
Pregnancy to Artificial Insemination in Beef Cows as Affected by Body Condition and Number of Services1,21This research was supported by Select Sires, Inc., Plain City, OH.2Authors gratefully acknowledge J. O. Sanders and D. K. Lunt for supplying animals and facilities.

# publications[].publisher
American Registry of Professional Animal Scientists

# publications[].label
In vitro culture of precision-cut testicular tissue as a novel tool for the study of responses to LH.

# publications[].label
Effect of chemically altered and modified-live infectious bovine rhinotracheitis vaccines on fetal retention in beef replacement heifers during the first four months of gestation

# publications[].label
Gene expression in the spermatogenically inactive "dark" and maturing "light" testicular tissues of the prepubertal colt.

# publications[].label
Cloprostenol induced luteal regression in the beef cow. II. Histological evaluation of corpora lutea and correlation with luteal progesterone.

# publications[].label
OVARIAN INHIBITION OF PULSATILE LUTEINIZING-HORMONE SECRETION IN PREPUBERAL HOLSTEIN HEIFERS

# publications[].label
Effect of ruminally undegradable protein from fish meal on growth and reproduction of peripuberal Brahman bulls.

# publications[].label
Dexamethasone acutely regulates endocrine parameters in stallions and subsequently affects gene expression in testicular germ cells.

# publications[].label
Relationship of germ cell apoptosis to spermatogenic efficiency in stallions with reduced semen quality

# publications[].label
Cloprostenol inouced luteal regression in the beef cow. I. Ovarian response and endocrine changes.

# publications[].label
Dexamethasone acutely down-regulates genes involved in steroidogenesis in stallion testes.

# publications[].label
Dense spermatozoa in stallion ejaculates contain lower concentrations of mRNAs encoding the sperm specific calcium channel 1, ornithine decarboxylase antizyme 3, aromatase, and estrogen receptor alpha than less dense spermatozoa.

# publications[].label
Fixed-time insemination utilizing an EaziBreed (TM) CIDR (R) in combination with gonadotropin-releasing hormone or estradiol cypionate

# publications[].label
Testicular and epididymal function during the peripuberal period in Brahman bulls receiving various amounts of protein degradable in the rumen.

# publications[].label
Effect of exogenous prolactin on peripheral luteinizing hormone levels in ovariectomized cows.

# publications[].label
Estriol- and estradiol-17 beta-induced luteinizing hormone release in ovariectomized cows and ewes.

# publications[].label
Effect of dexamethasone on serum and testicular concentrations of testosterone in stallions

# researcherOn[].label
Technologies to Enhance Reproductive Rate in Beef Cattle

# researcherOn[].awardedBy.label
National Institute of Food and Agriculture - (Washington D.C., District of Columbia, United States)

# streetAddress
Texas A&M University; Animal Science; 2471 TAMU

# organizations[]
College of Agriculture and Life Sciences

# schools[]
College of Agriculture and Life Sciences

# etdChairOf[].label
Chachere, Jonathan Allen (2015-08). Anti Mullerian Hormone Concentrations as a Predictor of Superovulation Response and Conception Rate in Beef Females. Master's Thesis.

# etdChairOf[].label
Thorne, Jacob Westley (2013-05). Fertility of Beef Recipients Following a Fixed-Time Embryo Transfer Protocol that Includes Follicle Stimulating Hormone Diluted in Hyaluronan. Master's Thesis.