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Filtering by: Creator Yang, Kei-wean Calvin Remove constraint Creator: Yang, Kei-wean Calvin Contributor advisor sim England, David C. Remove constraint Contributor advisor sim: England, David C.

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  • Reproductive and litter performance of sows mated during lactation

    Creator:
    Walker, Calvin
    Abstract:
    An experiment was conducted with 51 control and 51 experimental confinement- managed purebred Yorkshire sows of various parities to (1) determine whether confinement-managed sows during lactation would exhibit estrus, mate, and conceive as a consequence of a daily regimen of a short period of separation from their litters, mixing sows...
    Resource Type:
    Masters Thesis
    Full Text:
    lactation AN ABSTRACT OF THE THESIS OF CALVIN WALKER for the MASTER OF SCIENCE (Name) (Degree) in ANIMAL

  • Management techniques for induction and synchronization of estrus in prepuberal gilts in confinement

    Creator:
    Schiemann, Calvin Aloysius
    Abstract:
    At weights of 81.5-90.5 kg, 187 prepuberal crossbred gilts were subjected to specific environmental stimuli, for up to 17 days, to determine which stimuli or combinations of various ones would initiate onset of estrus in prepuberal gilts. The stimuli used were: movement to new building, mixing or non-mixing of gilts,...
    Resource Type:
    Masters Thesis
    Full Text:
    AN ABSTRACT OF THE THESIS OF Calvin Aloysius Schiemann for

  • 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:
    . Jack Rose, John Jaeger, Carrie Cosola, OV Slayden (computer wiz kid), Calvin Walker, Nora Peters