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Filtering by: Creator Burton, Julia I. Remove constraint Creator: Burton, Julia I. Advisor Stormshak, Fredrick Remove constraint Advisor: Stormshak, Fredrick

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  • 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:
    assistantship necessary for the completion of this dissertation. I wish to express my deepest gratitude to Dr

  • Some aspects of the mechanism of estrogen action in the uterus of the ewe

    Creator:
    Koligian, Karl Bruce
    Abstract:
    The binding of estrogen to endometrium and uterine arteries of the ewe was investigated by use of a [³H]estradiol exchange assay and by incubating whole tissue aliquants with [³ H]estradiol, a method which permits quantification of bound estrogen translocated from the cytoplasm to the nucleus. Five ewes were necropsied on...
    Resource Type:
    Dissertation
    Full Text:
    ACKNOWLEDGEMENTS I wish to express gratitude to Dr. Fredrick Stormshak for his assistance and guidance throughout

  • Mechanism of action of exogenous estrogen in the ovine endometrium during the mid-luteal phase of the estrous cycle

    Creator:
    Luebke, Mary Beth
    Resource Type:
    Masters Thesis
    Full Text:
    polymerase I and 11 were determined by [ 3 H]UTP incorporation:into RNA during incubation of endometrial

  • Physiological factors affecting ovine uterine estrogen and progesterone receptor concentrations

    Creator:
    Prater, Patrice L.
    Abstract:
    Two experiments were conducted to determine whether in ewes uterine concentrations of estrogen and progesterone receptors are affected by the presence of a conceptus or by the hormonal milieu associated with extremes in photoperiod to which ewes are exposed. In Exp.1, nine mature ewes were unilaterally ovariectomized by removing an...
    Resource Type:
    Masters Thesis
    Full Text:
    presented: November 14, 1990 Typed for Researcher by: Patrice L. Prater ACKNOWLEDGEMENTS I would like

  • Embryonic and hormonal control of ovine uterine arterial constriction

    Creator:
    Pope, William Frederick
    Abstract:
    The role of the conceptus and ovarian hormones in regulating ovine uterine vasoconstriction was investigated. The uterine artery ipsilateral to the ovary bearing the corpus luteum in ten nonpregnant and eight pregnant ewes was utilized in two experiments. Arteries of nonpregnant and pregnant ewes were removed at necropsy on day...
    Resource Type:
    Masters Thesis
    Full Text:
    , without which these studies would not have been possible. I also wish to acknowledge Dr. Fred Stormshak

  • Endocrine regulation of uterine physiology in mink

    Creator:
    Slayden, Ov Daniel
    Resource Type:
    Dissertation
    Full Text:
    for researcher by Ov Daniel Slayden ACKNOWLEDGMENTS I would like to thank the Mink Farmer's

  • Intrauterine migration of the porcine embryo

    Creator:
    Pope, William Frederick
    Abstract:
    The mechanism(s) involved with intrauterine migration of the porcine embryo was investigated. Twenty-four gilts on Days 6, 9 and 12 of gestation (Day 0 = 1st day of estrus) were utilized to examine the relationship between myometrial activity and intrauterine migration. On Day 2, embryos were flushed from one oviduct...
    Resource Type:
    Dissertation
    Full Text:
    . Mary Zelinski for her invaluable assistance with the administra- tive paper shuffling. I also wish to

  • Characteristics of preovulatory follicles of pubertal gilts

    Creator:
    Smith, Gary Daniel
    Abstract:
    Two experiments were conducted utilizing crossbred gilts to evaluate follicle characteristics at puberty and to determine the effect of exogenous estradio1-17β on embryonic mortality in the mature cycling gilt. Experiment 1 was conducted to compare preovulatory follicle numbers and sizes and follicular fluid concentrations of progesterone, estradio1-17β, plasminogen activator and...
    Resource Type:
    Masters Thesis
    Full Text:
    all things in life. Most of all I thank him for the fond memories with which he left me that will

  • Endocrinology of fur growth and reproduction in mink

    Creator:
    Rose, William Jackson
    Abstract:
    Experiments were conducted to determine: 1) the effects of exogenous melatonin and reduced photoperiod on molting and growth of the winter pelage (fur) and 2) whether changes in serum prolactin levels of treated and control mink during this same period were correlated with growth of winter fur. Adult and kit...
    Resource Type:
    Dissertation
    Full Text:
    ACKNOWLEDGMENTS I would like to express my deepest gratitude to the Mink Farmers Research Foundation of America

  • Embryonic mortality in pubertal gilts

    Creator:
    Archibong, Anthony Effanga
    Abstract:
    An experiment was conducted to compare the reproductive performance and serum concentrations of progesterone and estrogen of mated first (n=18) and third (n=18) estrous gilts slaughtered in equal numbers on days 3, 15 and 30 postmating. Fertilization rate did not differ between mated first and third estrous gilts. Embryonic survival...
    Resource Type:
    Dissertation
    Full Text:
    Bob Oltjen for their support of this agreement. I wish to express my sincere gratitude to Dr. Fred