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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:: one pulse per 3 hours due to the inhibition by estradioi (Foster and Ryan, 1979). However, during

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:: young. In the gilt, puberty is characterized by the expression of first behavioral estrus and ovulation

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

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Creator:: Cortell, Anna Katherine
Resource Type:: Masters Thesis
Full Text:: progesterone synthesis by tropic hormones is thought to occur (Hall and Koritz, 1964; Hall and Young, 1968

Concerted actions of ovarian steroids and prostaglandin F₂a on smooth muscle contractility of ovine and bovine uterine arteries

Creator:: Ford, Stephen Paul
Abstract:: The role of estradiol- 17β, progesterone and prostaglandin F₂α (PGF₂α) in altering contractility of uterine vascular smooth muscle was investigated. A segment of uterine artery (3. 5 cm) supplying each uterine horn of ewes and heifers were removed at necropsy and perfused with oxygenated Krebs Henseleit Solution prior to initiating...
Resource Type:: Dissertation
Full Text:: fertilized ovum and subsequent development of the young. Recent evidence suggests ovarian steroids may act

Utilization of lipid by primiparous beef heifers during the postpartum period

Creator:: Filley, Shelby Jean
Resource Type:: Dissertation
Full Text:: ; however, in primates intraovarian mechanisms are responsible for demise of the CL (Young et al., 1997

Factors affecting prolactin secretion in the African elephant

Creator:: Bechert, Ursula S.
Abstract:: Prolactin (PRL) is a peptide hormone that is involved in a number of diverse physiologic roles, particularly with respect to reproduction, including: influencing sexual and parental behaviors, onset of puberty, regulation of seasonal reproduction, follicular maturation, ovulation, luteinization and corpus luteum (CL) function, steroidogenesis, mammary gland development and lactation, testicular...
Resource Type:: Dissertation
Full Text:: . I appreciate the efforts made by Dr. Kathy Ryan, Magee Womens Research Center in Pittsburgh, PA

Influence of castration and estrogen replacement on sexual behavior in hetersexual, male-oriented and asexual rams

Creator:: Pinckard, Kelly Lynn
Resource Type:: Masters Thesis
Full Text:: , despite the fact that she has lived the majority of her young life with an absentee mom. Although I can

Corpus luteum function in hysterectomized and unilaterally hysterectomized ewes treated with gonadotropin-releasing hormone

Creator:: Whitmore, Diana L.
Resource Type:: Masters Thesis
Full Text:: seasonal environment so that young are born at a time when both climate and food availability are

Altered ovarian and uterine function in response to intravascular infusion of long chain fatty acids in nonpregnant ewes

Creator:: Burke, Joan M.
Resource Type:: Dissertation

ScholarsArchive@OSU

Characteristics of preovulatory follicles of pubertal gilts

Embryonic mortality in pubertal gilts

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

Cyclopropenoid fatty acid-induced suppression of ovine corpus luteum function

Concerted actions of ovarian steroids and prostaglandin F₂a on smooth muscle contractility of ovine and bovine uterine arteries

Utilization of lipid by primiparous beef heifers during the postpartum period

Factors affecting prolactin secretion in the African elephant

Influence of castration and estrogen replacement on sexual behavior in hetersexual, male-oriented and asexual rams

Corpus luteum function in hysterectomized and unilaterally hysterectomized ewes treated with gonadotropin-releasing hormone

Altered ovarian and uterine function in response to intravascular infusion of long chain fatty acids in nonpregnant ewes

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