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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
Applications of GnRH immunization in domestic dogs

Creator:

Donovan, Caitlin Elizabeth

Abstract:

Reproductive function in the dog is controlled by feedback mechanisms that involve the hypothalamus, the anterior pituitary gland, and the gonads. Surgical gonad removal, a common procedure performed in dogs for the purposes of sterilization, disrupts the hypothalamic-pituitary-gonadal (HPG) axis and results in permanently elevated concentrations of gonadotropins. Manipulation of...

Resource Type:

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

Creator:

Sucheta, Susan Leers

Resource Type:

Dissertation
Studies on luteinizing hormone and gonadal steroids in male and female llamas (Lama glama)

Creator:

Reed, Pamela J.

Abstract:

A series of studies was performed to more clearly evaluate gonadal function in llamas. Luteinizing hormone (LH) and progesterone (P₄) concentrations were compared following natural or hormone-induced ovulation. Luteal regression was evaluated following administration of the prostaglandin F₂α analog cloprostenol. The interaction of age, season and castration on testosterone (T)...

Resource Type:

Dissertation