rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Estrous-marker and sexual-pheromone volatiles from bovine body fluids
  name:
    name part: Rivard, Germain (Germain François)
    role:
      role term: creator
  name:
    name part: Klemm, William R.
    role:
      role term: degree supervisor.
  name:
    name part: Burghardt, Robert C.
    role:
      role term: degree committee member.
  name:
    name part: McArthur, Newell H.
    role:
      role term: degree committee member.
  name:
    name part: Welsh, Tom H.
    role:
      role term: degree committee member.
  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: 1991
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xi, 116 leaves : illustrations ; 29 cm
  abstract: We evaluated various body fluids with a bull behavioral assay (BBA) in the absence of a female. It specified 15 behaviors involving attraction to the body fluids, detection of the stimulus, and subsequent sexual preparation behaviors. These behaviors were stereotyped and occurred in a specific sequence. Positive responses could be produced by serum taken at estrus and by vulval skin gland secretions (VSGS). VSGS may be a specialized site for the production or concentration of the pheromone. Light microscopy demonstrated that the onset of estrus is characterized by histomorphic changes in vulval sweat glands. Also, the ovarian follicle might be a source of estrous-marker and sexual-pheromone volatiles. In culture granulosa cells only the culture media from pre-ovulatory follicle and the FSH-treated cells elicited the three sets of stereotyped sexual behaviors. In the BBA, licking was an important effect of pheromonal stimulation. To test the importance of direct contact by licking or touching the sample, we exposed unrestrained bulls to female estrous serum that was presented in either a flat dish or a deep bowl in which direct contact was not possible. Cues from the non-volatile portion of the liquid sample were necessary for the complete expression of male sexual behavior. However, the volatile cues alone enabled the bulls to recognize sexual-pheromone from cows in pro-estrus. We developed a headspace gas chromatographic analysis procedure for monitoring metabolic profiles during the estrous cycle. Comparison of the most volatile fraction of blood from estrous and non-estrous samples revealed a chromatographic profile that correlated with pro-estrous. One peak of the characteristic profile appeared the day [plus or minus]1 before a rise in estrogen, and its peak abundance increased until the day of estrus [plus or minus]1, then dropped to low or no value. The blood-volatile profile agreed with profile of pre-ovulatory follicular fluid. The ratio of volatiles from v…
  note: Typescript (photocopy).
  note: Vita.
  note: "Major subject: Veterinary Anatomy."
  note: Ph. D. Texas A & M University 1991
  note: Includes bibliographical references.
  subject:
    topic: Cattle
    topic: Reproduction
  subject:
    topic: Chemical senses
  subject:
    topic: Pheromones
  subject:
    topic: Estrus
  subject:
    topic: Major veterinary anatomy
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 930205
    record change date: 20200904152602.0
    record identifier: in00001121990
    language of cataloging:
      language term: eng