Education And Training:
B.S.,
Agriculture (Animal Science), New Mexico State University, Las Cruces, 1972
M.S.,
Animal Science (Reproductive Physiology; Biology minor), New Mexico State University, Las
Cruces, 1974
Ph.D.,
Animal Physiology (Nutritional Biochemistry minor), University of Arizona, Tucson, 1978
Postdoctoral
Sabbatical, Molecular Endocrinology Laboratory, Center for Animal Biotechnology,
Texas A&M University, College Station, 1997
Professional and Academic Appointments:
Graduate
Teaching Assistant, New Mexico State University, Las Cruces, 1974-1975
Graduate
Research Assistant, 1975-1976, Graduate Research Associate, 1976-1978 Department of Animal
Sciences, University of Arizona, Tucson
Associate
Professor, 1982-1984; Assistant Professor, 1978-1982, Physiology of Reproduction,
Department of Animal Science, North Dakota State University, Fargo
Professor
and Research Leader, 1989-present; Associate Professor and Research Leader, 1984-1989,
Physiology of Reproduction, Animal Reproduction Laboratory, Texas Agricultural Experiment
Station, Beeville
Professor,
1989-present and Associate Professor 1984-1989, Physiology of Reproduction and Growth
Section,
Department of Animal Science, Texas A&M University, College Station
Member,
Center for Animal Biotechnology, Institute of Biosciences and Technology, Texas A&M
University, College Station, 1992-present
Adjunct
Professor, Department of Animal and Wildlife Sciences, Texas A&M
University-Kingsville, Kingsville, TX, 1995-present
Member,
Emerging Faculty in Reproductive Biology, Texas A&M University, College Station,
1998-present
Disciplinary Emphasis and Current Research Interests:
Reproductive
Endocrinology; Reproductive Neuroendocrinology; Beef Cattle, Horses
Neuroendocrinology
of Postpartum Reproduction in the Cow and Mare
Nutritional
and Metabolic Signaling to the Reproductive Axis; Reproductive and Nutritional Management
Appointment
Breeding Schemes; Physiological Markers for Fecundity
Honors, Awards, and Professional Recognition:
Deputy
Chancellor's Award in Excellence - Team Research, The Texas A&M University System,
1990
Deputy
Chancellor's Award in Excellence - Individual Research, The Texas A&M University
System, 1993
TAES Faculty
Fellow, 2003
American
Registry of Professional Animal Scientists (PAS)
Diplomate
American College of Animal Physiology (Dipl. ACAP)
Extamural Research Support:
Total
Grants and Contracts: $1,155,434
Publications:
Book
Chapters
Williams,
G. L., G. Guzman Vega, C. Zochi and O. Gazal. 1996. Mechanisms regulating
suckling-mediated anovulation in cows. In: G. M. Stone and G. Evans, (eds.), Animal
Reproduction: Research and Practice, Anim. Reprod. Sci. Suppl.: 42:289-297, Elsevier
Science B.V., Amsterdam.
Williams,
G. L. Influence of dietary fat intake and metabolism on follicular growth in cattle. In:
D. Rath and A.J. Zeicik, (eds), The Central European Conference on Animal Reproduction,
Reprod. Domest. Anim.1996; 31 Suppl): 391-610.
Williams,
G. L. Fat, Follicles, and Fecundity: The Ruminant Paradigm. In: Nutrition and
Reproduction. W.Hansel and G. Bray (eds), Pennington Biomedical Research Foundation,
Louisiana State University.
Williams,
G.L Nutritional Factors and Reproduction. In: Encyclopedia of Reproduction, vol 3, E.
Knobil, J. Neill (eds.), Academic Press, New York, NY, 1998; 92-102.
Williams, G.L. Endocrine Regulation of Maternal Behavior Postpartum. In: The Endocrinology of
Pregnancy, F.W. Bazer (ed)., Humana Press, Totowa, NJ, 1998; 555-568.
Refereed
Journals
Griffith,
M. K. and G. L. Williams. Contribution of maternal vision and olfaction to
suckling-mediated inhibition of luteinizing hormone secretion, the expression of maternal
selectivity, and lactation in beef cows. Biol Reprod. 1996; 54:761-768.
Gazal,
O. S., Stanko, R. L., Bao, B., and G. L. Williams. 1996. Secretion of oxytocin by bovine
luteal cells obtained from corpora lutea destined to be normal or short-lived.
Anim. Reprod. Sci 43: 89-98.
Thomas,
MG, Bao, B, Williams, GL. Dietary fats varying in their fatty acid composition
differentially influence follicular growth in cows fed isoenergetic diets. 1997; J.
Anim. Sci. 75:2512-2519.
Bao, B,
Thomas, MG, Williams, GL. Regulatory roles of high-density and low-density lipoproteins in
cellular proliferation and secretion of progesterone and insulin-like growth factor-I by
enriched cultures of bovine small and large luteal cells. 1997; J. Anim. Sci. 75:
3235-3245).
Gazal, O.S. ,
L.S. Leshin, R.L. Stanko, L.L. Anderson, and G.L. Williams. 1998. Pulsatile release
of gonadotropin-releasing hormone into third ventricle cerebrospinal fluid of cattle:
Correspondence with the tonic and surge release of luteinizing hormone and its tonic
inhibition by suckling and neuropeptide Y. Biol.Reprod. 59: 676-683.
Puppione, D.L., Fischer, W.H., Park, M, Gazal, O.S., and G.L. Williams. 1998. Isolation of
cerebrospinal fluid lipoproteins from peripartum and postpartum cows: Identification of
bovine apolipoprotein E. Lipids 33: 7883-7887.
Gazal,
O. S., Guzman Vega, G. A., and Williams, G. L. 1998. Effects of time of suckling during
the solar day on length of the postpartum anovulatory interval in Brahman x Hereford (F1)
cows. J. Anim. Sci. (in press).
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