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mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Dietary fat intake, metabolic hormone secretion, and ovarian physiological function in cows
  name:
    name part: Thomas, Milton Glen
    name part: 1965-
    role:
      role term: creator
  name:
    name part: Burghardt, Robert C.
    role:
      role term: degree committee member.
  name:
    name part: Forrest, David W.
    role:
      role term: degree committee member.
  name:
    name part: Welsh, Jr., Thomas H.
    role:
      role term: degree committee member.
  name:
    name part: Williams, Gary L.
    role:
      role term: degree supervisor.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses.
  origin info:
    place:
      place term: xx
    date issued: 1994
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xii, 159 leaves : illustrations ; 28 cm
  abstract: The hypothesis that the type of dietary fatty acid consumed by the cow differentially affects both luteal and follicular function through altered synthesis of lipoprotein-cholesterol and secretion of metabolic hormones was tested in 2 experiments. In experiment 1, estrous cycling cows were randomly assigned to either a control or a fat-supplemented diet consisting of animal tallow, soybean oil, or fish oil. After 20 days of consumption, estrus was induced and ovarian follicular populations were monitored via transrectal ultrasound. Fluid from a large follicle was aspirated between days 10 and 14 of the cycle. Cows were ovariectomized between days 11-13 of the subsequent cycle. After 20 days of consumption in experiment 2, ovarian follicular populations were monitored for 4 days followed by aspiration of the dominant follicle. Heifers were then superovulated with FSH-P$ sp circler.$ All fat-supplemented diets increased (P $<$ 0.07) serum and follicular fluid concentration of cholesterol and progesterone, and serum concentration of growth hormone in both experiments. In experiment 1, animal tallow and fish oil diets tended to produce an increase (P $<$ 0.10) in concentrations of serum insulin and follicular fluid IGF-I, and in the number of medium-sized follicles at ovariectomy (day 50). However, the soybean oil diet maximized (P $<$ 0.05) these effects, and produced an abrupt $( approx$ day 20) increase (P $<$ 0.07) in serum concentration of insulin and the number of medium-sized follicles in both experiments. Increased (P $<$ 0.04) follicular fluid concentration of androstenedione in large estrogen inactive follicles paralleled hyperinsulinism in the Soybean Oil group in experiment 1. Conversely, the animal tallow diet produced an increase (P $<$ 0.02) in concentrations of estradiol in these follicles relative to the Soybean Oil and Control groups. Concentration of inhibin in medium-sized follicles was increased (P $<$ 0.05) in the Animal Tallow and Fish Oil groups …
  note: by Milton Glen Thomas.
  note: "Major subject: Physiology of Reproduction."
  note: Vita.
  note: Ph. D. Texas A & M University 1994
  note: Includes bibliographical references.
  subject:
    topic: Major physiology of reproduction
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-1552111
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    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-1552111
  record info:
    record content source: TXA
    record creation date: 960517
    record change date: 20220103134934.0
    record identifier: in00001300950
    language of cataloging:
      language term: eng