Search Results - "Geary, T. W"

Loci associated with conception rate in crossbred beef heifers by Oliver, K F, Geary, T W, Kiser, J N, Galliou, J M, Van Emon, M L, Seabury, C M, Spencer, T E, Neibergs, H L

“…The inability of beef cattle to maintain full term pregnancies has become an economic concern for the beef industry. Herd management and nutritional…”
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Relationship between size of the ovulatory follicle and pregnancy success in beef heifers by Perry, G.A, Smith, M.F, Roberts, A.J, MacNeil, M.D, Geary, T.W

“…Previous research indicated that the size of the ovulatory follicle at the time of insemination significantly influenced pregnancy rates and embryonic/fetal…”
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Pregnancy establishment and maintenance in cattle by Atkins, J. A, Smith, M. F, MacNeil, M. D, Jinks, E. M, Abreu, F. M, Alexander, L. J, Geary, T. W

“…A single ovulation, reciprocal embryo transfer study was used to investigate effects of oocyte competence and maternal environment on pregnancy establishment…”
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Reproductive performance of heifers offered ad libitum or restricted access to feed for a one hundred forty-day period after weaning by Roberts, A.J, Geary, T.W, Grings, E.E, Waterman, R.C, MacNeil, M.D

“…Reproductive performance was evaluated in composite heifers born over a 3-yr period that were randomly assigned to control (fed to appetite; n = 205) or…”
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Effect of early gestational undernutrition on angiogenic factor expression and vascularity in the bovine placentome by Vonnahme, K.A, Zhu, M.J, Borowicz, P.P, Geary, T.W, Hess, B.W, Reynolds, L.P, Caton, J.S, Means, W.J, Ford, S.P

“…The effect of early gestation maternal undernutrition followed by realimentation on placentomal vascular growth and angiogenic factor expression was determined…”
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Factors affecting preovulatory follicle diameter and ovulation rate after gonadotropin-releasing hormone in postpartum beef cows. Part I: Cycling cows by Atkins, J.A, Smith, M.F, Wells, K.J, Geary, T.W

“…Cows induced to ovulate small dominant follicles were reported to have reduced pregnancy rates compared with cows that ovulated large follicles. The reason for…”
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Factors affecting preovulatory follicle diameter and ovulation rate after gonadotropin-releasing hormone in postpartum beef cows. Part II: Anestrous cows by Atkins, J.A, Smith, M.F, Wells, K.J, Geary, T.W

“…There is large variation in dominant follicle diameter at the time of GnRH-induced ovulation in the CO-Synch protocol [a first GnRH injection on d -9 (GnRH1),…”
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Effect of ovulatory follicle size and expression of estrus on progesterone secretion in beef cows by Busch, D. C, Atkins, J. A, Bader, J. F, Schafer, D. J, Patterson, D. J, Geary, T. W, Smith, M. F

“…Induced ovulation of small dominant follicles (SF, < 12 mm; CO-Synch protocol) in postpartum beef cows resulted in formation of corpora lutea (CL) that…”
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Genetic parameter estimates for scrotal circumference and semen characteristics of Line 1 Hereford bulls by Kealey, C. G, MacNeil, M. D, Tess, M. W, Geary, T. W, Bellows, R. A

“…The objectives of this study were to estimate heritability for scrotal circumference (SC) and semen traits and their genetic correlations (r[subscript g]) with…”
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Effects of flunixin meglumine on pregnancy establishment in beef cattle by Geary, T.W, Ansotegui, R.P, MacNeil, M.D, Roberts, A.J, Waterman, R.C

“…The objective of this research was to determine effects of a single injection of the PG synthesis inhibitor flunixin meglumine (FM; 1.1 mg/kg of BW,…”
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Leptin as a predictor of carcass composition in beef cattle by Geary, T. W, McFadin, E. L, MacNeil, M. D, Grings, E. E, Short, R. E, Funston, R. N, Keisler, D. H

“…Our objective was to determine if serum concentrations of leptin could be used to predict carcass composition and merit in feedlot finished cattle. Two…”
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Effect of follicle age on conception rate in beef heifers1 by Abreu, F. M., Cruppe, L. H., Maquivar, M., Utt, M. D., Madsen, C. A., Vasconcelos, J. L. M., Mussard, M. L., Day, M. L., Geary, T. W.

“…The objective of this study was to determine the effect of age of the ovulatory follicle on fertility in beef heifers. Ovulation was synchronized with the 5 d…”
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Influence of seasonal forage quality on glucose kinetics of young beef cows by Waterman, R.C, Grings, E.E, Geary, T.W, Roberts, A.J, Alexander, L.J, MacNeil, M.D

“…Extensive range livestock production systems in the western United States rely heavily on rangeland forages to meet the nutritional needs of grazing livestock…”
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Effects of flunixin meglumine and transportation on establishment of pregnancy in beef cows by Merrill, M.L, Ansotegui, R.P, Burns, P.D, MacNeil, M.D, Geary, T.W

“…Objectives of these studies were to determine the effects of flunixin meglumine (FM) administration on early embryonic mortality and circulating PG and…”
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Effects of restricted feeding of beef heifers during the postweaning period on growth, efficiency, and ultrasound carcass characteristics by Roberts, A.J, Paisley, S.I, Geary, T.W, Grings, E.E, Waterman, R.C, MacNeil, M.D

“…Traits used for identification of replacement beef heifers and feeding levels provided during postweaning development may have major financial implications due…”
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Limousin specific myostatin allele affects longissimus muscle area and fatty acid profiles in a Wagyu-Limousin F₂ population by Alexander, L.J, Kuehn, L.A, Smith, T.P.L, Matukumalli, L.K, Mote, B, Koltes, J.E, Reecy, J, Geary, T.W, Rule, D.C, MacNeil, M.D

“…A microsatellite-based genome scan of a Wagyu x Limousin F₂ cross population previously demonstrated QTL affecting LM area and fatty acid composition were…”
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Effect of copper, zinc, and manganese supplementation and source on reproduction, mineral status, and performance in grazing beef cattle over a two-year period by Ahola, J.K, Baker, D.S, Burns, P.D, Mortimer, R.G, Enns, R.M, Whittier, J.C, Geary, T.W, Engle, T.E

“…Crossbred, multiparous beef cows (n = 178 in Year 1; n = 148 in Year 2) were used to evaluate the effects of Cu, Zn, and Mn supplementation and source on…”
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Preovulatory estradiol and the establishment and maintenance of pregnancy in suckled beef cows1 by Jinks, E. M., Smith, M. F., Atkins, J. A., Pohler, K. G., Perry, G. A., MacNeil, M. D., Roberts, A. J., Waterman, R. C., Alexander, L. J., Geary, T. W.

“…In postpartum beef cows, GnRH-induced ovulation of small dominant follicles decreased pregnancy rates and increased late embryonic/fetal mortality. In Exp. 1,…”
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Effects of immunization against luteinizing hormone-releasing hormone and treatment with trenbolone acetate on reproductive function of beef bulls and steers by Geary, T.W, Wells, K.J, deAvila, D.M, deAvila, J, Conforti, V.A, McLean, D.J, Roberts, A.J, Waterman, R.W, Reeves, J.J

“…The objectives of this study were 1) to evaluate the ability of trenbolone acetate (TBA) administered in tandem with LHRH immunization to suppress reproductive…”
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Triennial Reproduction Symposium: deficiencies in the uterine environment and failure to support embryonic development by Bridges, G A, Day, M L, Geary, T W, Cruppe, L H

“…Pregnancy failure in livestock can result from failure to fertilize the oocyte or embryonic loss during gestation. The focus of this review is on cattle and…”
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