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Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Creator:: Cortell, Anna Katherine
Resource Type:: Masters Thesis
Full Text:: ., 1982; Hoyer and Niswender, 1985). In small ovine luteal cells, progesterone production is stimulated

Plasma membrane composition and luteinizing hormone receptors of ovine corpora lutea during early pregnancy

Creator:: Zelinski, Mary Beth
Abstract:: The lipid composition of plasma membranes of corpora lutea was examined to determine whether changes in this organelle occur during regression and early pregnancy in the ewe. Forty ewes were assigned to be necropsied on days 13 or 15 of the estrous cycle (D13-NP and D15-NP) or pregnancy (D13-P and...
Resource Type:: Dissertation
Full Text:: production, Fg/cell/min; mean ± SEM cR = receptor sites/cell; mean ± SEM Hoyer et al., 1984 Hoyer and

Gonadotropin releasing hormone-induced alteration of corpus luteum function in beef heifers

Creator:: Rodger, Lynn Dian
Abstract:: Two experiments were conducted to evaluate the effects of gonadotropin releasing hormone (GnRH) on the function of the bovine corpus luteum during the estrous cycle. In Experiment 1, 10 heifers were assigned randomly into two groups with each heifer serving as her own control. Heifers in Group I (n=5) were...
Resource Type:: Masters Thesis
Full Text:: . Prostaglandin El (Hoyer et al., 1978) and PGE2 (Colcord et al., 1978) also blocked estradio1-17einduced

Evaluation of low quality roughages and agricultural by-products as livestock feed

Creator:: Hussain, Imdad
Abstract:: Nine feeding trials and four laboratory scale experiments were conducted in this study. The study consisted of: (1) use of grass straw:corn juice (CJ) silages with fishmeal and/or alfalfa hay supplementation in beef heifers, sheep, pregnant dairy heifers, water buffaloes and Hereford cows; (2) use of cull onions:grass straw silages...
Resource Type:: Dissertation
Full Text:: microscopy. J. Anim. Sci., 51: 1189-1196. Steen, R.W.J., 1992. A comparison of soya-bean meal, fishmeal

Oxytocin synthesis and release by the bovine corpus luteum

Creator:: Abdelgadir, Salaheldin Eltigani
Abstract:: Four experiments were conducted to determine oxytocin concen tration of bovine luteal tissue at different stages of the estrous cycle and to study the effects of prostaglandins F₂α (PGF₂α), E₂ (PGE₂), luteinizing hormone (LH), cycloheximide, colchicine and cytochalasin B on oxytocin synthesis and release in vitro. In experiment 1, luteal...
Resource Type:: Dissertation
Full Text:: et al., 1978; Hoyer et al., 1978; Huecksteadt and Weems, 1978) and heifers (Chenault, 1983

Response of the bovine corpus luteum to exogenous gonadotropin-releasing hormone during the estrous cycle

Creator:: Martin, Teri L.
Abstract:: Two experiments were conducted to investigate the effects of gonadotropin-releasing hormone (GnRH), administered twice during the same estrous cycle, on bovine luteal function. Eight mature beef cows, each cow serving as her own control, were injected intravenously (i.v.) with saline on days 2 and 8 of the cycle (day of...
Resource Type:: Masters Thesis

Reproductive and litter performance of sows mated during lactation

Creator:: Walker, Calvin
Abstract:: An experiment was conducted with 51 control and 51 experimental confinement- managed purebred Yorkshire sows of various parities to (1) determine whether confinement-managed sows during lactation would exhibit estrus, mate, and conceive as a consequence of a daily regimen of a short period of separation from their litters, mixing sows...
Resource Type:: Masters Thesis
Full Text:: commercial unit. Anim. Prod. 21:233. Rowlinson, P., M. J. Bryant and H. A. M. van der Steen. 1977. The

Bovine luteal oxytocin synthesis and secretion in vitro : effects of phorbol ester, calcium ionophore and indomethacin

Creator:: Cosola-Smith, Carrie A.
Abstract:: Experiments were conducted to examine the effects of a tumor-promoting phorbol ester, a calcium ionophore and indomethacin on bovine luteal oxytocin (OT) synthesis and secretion and progesterone secretion. Six 18-month-old crossbred beef heifers in Exp. 1 and five similar heifers in Exp. 2 were observed twice daily for estrus using...
Resource Type:: Masters Thesis
Full Text:: Redacted for privacy Head of Department of Animal Science Redacted for privacy J Dean of graduate School

Monensin and zeranol alone and in combination for growing-finishing steers and growing heifers

Creator:: Wooten, Donald Griffin
Abstract:: Ninety-two spring-born and 76 fall-born steer and heifer calves (Hereford and Angus x Hereford) averaging 188 and 255 kg, respectively, were utilized in a 2x2 factorial arrangement of treatments to study the effects of zeranol and monensin, alone and in combination, on growth rate, feed efficiency and carcass characteristics. After...
Resource Type:: Masters Thesis
Full Text:: et al., 1977; Darrt et al., 1978; Steen et al., 1978; McCarthy et al., 1979; Perry et al., 1979

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

Creator:: Sucheta, Susan Leers
Resource Type:: Dissertation
Full Text:: positive, the learning experience was invaluable. I also gratefully acknowledge Dr. D. J. Bolt, USDA

ScholarsArchive@OSU

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Plasma membrane composition and luteinizing hormone receptors of ovine corpora lutea during early pregnancy

Gonadotropin releasing hormone-induced alteration of corpus luteum function in beef heifers

Evaluation of low quality roughages and agricultural by-products as livestock feed

Oxytocin synthesis and release by the bovine corpus luteum

Response of the bovine corpus luteum to exogenous gonadotropin-releasing hormone during the estrous cycle

Reproductive and litter performance of sows mated during lactation

Bovine luteal oxytocin synthesis and secretion in vitro : effects of phorbol ester, calcium ionophore and indomethacin

Monensin and zeranol alone and in combination for growing-finishing steers and growing heifers

Secretion of luteinizing hormone in response to exogenous melatonin in postpartum beef cows and ovariectomized beef heifers

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