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Filtering by: Creator Matthews, P. D. Remove constraint Creator: Matthews, P. D. Advisor Bogart, Ralph Remove constraint Advisor: Bogart, Ralph Resource Type Dissertation Remove constraint Resource Type: Dissertation

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  • Effects of radiation on selection progress in mice

    Creator:
    Womack, James Ernest
    Abstract:
    The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
    Resource Type:
    Dissertation
    Full Text:
    . D. (Degree) April 24, 1968 (Major) (Date) Title: EFFECTS OF RADIATION ON SELECTION PROGRESS IN

  • Genetic polymorphism of sheep hemoglobin

    Creator:
    Templeton, Joe Wayne, 1941-
    Abstract:
    Five breeds of sheep (Columbia, Targhee, Rambouillet, Lincoln, and Suffolk) were found to possess two hemoglobin types (Hb. A and Hb. B) when their hemoglobins were examined by disc gel electrophoresis. The hemoglobin alleles proved to be co-dominant. Three of the breeds (Columbia, Targhee, and Rambouillet) were maintained at altitudes...
    Resource Type:
    Dissertation
    Full Text:
    Ph. D. (Degree) July 19, 1968 (Date) Title: GENETIC POLYMORPHISM OF SHEEP HEMOGLOBIN Abstract

  • Effects of radiation on selection progress in mice

    Creator:
    Womack, James Ernest
    Abstract:
    The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
    Resource Type:
    Dissertation
    Full Text:
    . D. (Degree) April 24, 1968 (Major) (Date) Title: EFFECTS OF RADIATION ON SELECTION PROGRESS IN

  • An analysis of the response to selection for high and low rate of gain in the mouse, Mus musculus

    Creator:
    Burrill, Melinda Jane
    Abstract:
    An experiment was conducted to examine the responses to selection for high and low rate of gain in the mouse under a system whereby inbreeding was maximized. Rate of gain was measured by an index designed to include gains in both the pre- and postweaning periods with the gains in...
    Resource Type:
    Dissertation
    Full Text:
    especially to Mrs. Charles Hart, I wish to express special thanks to Drs. William D. Hohenboken and Kenneth

  • Genetics of sheep transferrins as determined by disc electrophoresis

    Creator:
    Nix, Carroll Eugene
    Abstract:
    A total of 902 plasma samples from the Rambouillet, Targhee, Columbia, Lincoln, and Suffolk breeds of sheep were analyzed for transferrin type by disc electrophoresis. Six transferrin types, Tf[superscript A], Tf[superscript B], Tf[superscript C], Tf[superscript p], Tf[superscript E], and Tf[superscript P], were found in the Rambouillet, Targhee, and Columbia breeds...
    Resource Type:
    Dissertation
    Full Text:
    . In a mixture of the sera of the two homozygotes, p-globulin C and D, the electrophoretic pattern of

  • Electrocardiograms and related variables of dwarf beef cattle

    Creator:
    Pinjani, Moti, 1939-
    Abstract:
    Electrocardiograms from 12 compressed male (CM), 16 compressed female (CF), ten synthetic compressed female (SCF), nine brachycephalic female (BF), and 15 dolichocephalic female (DF) dwarfs from Davis, California, taken in the scapular lead S-II (prescapular position positive and right forelimb negative) were analyzed, The data on dwarf electrocardiograms were compared...
    Resource Type:
    Dissertation
    Full Text:
    and Manning at Corvallis, Oregon. The average R-R, P--R, Q-T, and T-Q intervals, and the QRS

  • Genetic and physiological relationships of growth hormone and growth in goats

    Creator:
    Simms, Danny Dale
    Abstract:
    An F₁ population resulting from mating pygmy and normal goats (local commercial breeds) was crossed to give an F₂ population. Analysis of wither height and body weight indicated that the F₂ population was intermediate between the parental types (pygmy and normal) with little overlap of phenotypic values for body size...
    Resource Type:
    Dissertation
    Full Text:
    male normal goats decreased significantly (P < .005) while serum GH levels in the male pygmy goats

  • Effect of certain blood enzymes and cellular constituents on growth in different genetic groups of sheep

    Creator:
    Hutto, Daniel C.
    Abstract:
    In the present study, five breeds of ewes and their lambs were utilized. The breeds used were: Border Cheviot, Dorset Horn, Columbia, Suffolk and Willamette. In all, 31 ewes and 42 lambs were involved. The blood constituents which were determined for the ewes and lambs were: acid and alkaline phosphatase,...
    Resource Type:
    Dissertation
    Full Text:
    statistically (P <.01) by breed, sex and period, and ewe values were affected (P<.01) by breed, period and

  • Hormonal stimulation of breeding activity in different genetic groups of ewe lambs

    Creator:
    West, Dennis Errol, 1942-
    Abstract:
    An investigation of the effects of exogenous gonadotropic treatments on fertility of various genetic groups of ewe lambs were run over a six-year period. Since hormonal treatments varied and the experimental animals were different from one breeding season to the next, each year comprised a separate study. Hormone treatment included...
    Resource Type:
    Dissertation
    Full Text:
    ewe lamb fertility (P<0. 01). This significance was not due to a high positive correlation between

  • Certain genetic and maternal environmental influences on growth rate and body composition of lambs

    Creator:
    Addleman, Albert Duane
    Abstract:
    The present study was designed to investigate the relationship of milk production and milk quality to growth rate and certain organ-oleptic measurements of lambs of mutton breeds, Nine mature ewes in their fourth lactation of the Border Cheviot, Dorset Horn, Columbia, Suffolk, and Willamette breeds were acquired making a total...
    Resource Type:
    Dissertation
    Full Text:
    Ph. D. in Genetics -1N".r") tO"gr""l --tf"fi:"") --- Date thesis is presentea _ _Yey_l9_l_2 6_4_