Index Catalog // ScholarsArchive@OSU

Effectiveness of index and elite selection methods

Creator:: Douglass, Larry W.
Abstract:: Mice were used to compare the index and elite selection methods for simultaneous selection of four traits. Selection was for litter size, birth weight, weaning weight and post-weaning gain. Progress was evaluated by examining total phenotypic merit. The standard deviations from the cycle mean for the four traits were summed...
Resource Type:: Dissertation
Full Text:: Effectiveness of index and elite selection methods AN

Estimation of general and specific combining abilities from a diallel cross of three inbred lines of Suffolk sheep

Creator:: Schilling, Prentiss E. (Prentiss Edwin), 1941-
Abstract:: The investigations were based on a complete diallel cross among three inbred lines of Suffolk sheep. Line of sire effects were assumed to be an estimate of general combining ability effects while sire x dam interaction was assumed to be an estimate of specific combining ability. The line of dam...
Resource Type:: Dissertation
Full Text:: using various plants as research material. Allard (1956) employed the use of a diallel cross for

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:: An analysis of the response to selection for high and low

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:: AN ABSTRACT OF THE THESIS OF CARROLL EUGENE NIX for the

The relationship between x-ray induced teratogeny and chromosome aberrations in golden hamster embryos

Creator:: Jones, William Elvin
Abstract:: The relationship between x-ray induced chromosome aberrations and x-ray induced embryonic abnormalities was studied. Golden hamsters were irradiated during four stages of gestation: the blastocyst stage, 4.5 days post-copulation; the primitive streak stage, 6.5 days post-copulation; the organogenesis stage, 9.5 days post-copulation; and the period of fetal growth, 11.5 days...
Resource Type:: Dissertation
Full Text:: chromosome aberrations in golden hamster embryos AN ABSTRACT OF THE THESIS OF WILLIAM ELVIN JONES for the

Brain acetylcholinesterase activity at intervals after head irradiation in the rabbit

Creator:: Geel, Stanley Ernest
Resource Type:: Masters Thesis
Full Text:: the oxytocic factor of the posterior pituatary. Journal of Physiology 133:330-333. 1956. 3. Alles

Ova tranfers in sheep and rabbits : studies on material influences and irradiation damage

Creator:: Hunt, William Lynn
Abstract:: The first study utilized ova transfer in sheep and involved hormonal treatments for synchronization of estrus and superovulation in an investigation of crossbred maternal influences on inbred and linecross lambs. Synchronization of estrus in ewes was achieved effectively with either oral progestogen, 6 α-methyl-17α-hydroxy-progesterone acetate (60 mg./ewe/day), or intramuscular injections...
Resource Type:: Dissertation
Full Text:: , the range of response within a species to a changed horrnonal titer can be utilized in research if

Genetic and environmental factors influencing appetite in beef cattle and the relation of appetite to rate and efficiency of gain

Creator:: England, Noah Clinton
Resource Type:: Dissertation
Full Text:: ATTLE AND THE RELuT I ON OF APPETITE TO RATE AND EFFICIENCY OF GAIN by NOAH CLLT EGLAND A THIS

Genetic and physiological factors associated with gonadotropic and thyrotropic hormone content of sheep pituitaries

Creator:: Plotka, Edward Dennis
Abstract:: Data were taken from 47 animals consisting of five breeds: Border Cheviot, Columbia, Dorset Horn, Suffolk, and Willamette. Both sexes were represented in each breed, although in unequal numbers. The pituitaries were assayed for gonadotropic and thyrotropic hormone content by injecting a suspension of the macerated gland in saline into...
Resource Type:: Masters Thesis
Full Text:: integral part of the growth and re- productive processes. As research progressed, the intimate

Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

Creator:: Yodseranee, Somchit
Abstract:: Market lamb production usually requires a short period of time. The success of production is therefore dependent upon the growth rate of the lambs which is influenced by milk yields of the ewes. Different growth potentials of animals result from a difference in their utilisation of food. Since metabolism affects...
Resource Type:: Masters Thesis
Full Text:: . Alexandria Journal of Agricultural Research 3:69-.9$. 1955. Hawk, P. B., B. L. Oser and W. H. Summerson

ScholarsArchive@OSU

Effectiveness of index and elite selection methods

Estimation of general and specific combining abilities from a diallel cross of three inbred lines of Suffolk sheep

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

Genetics of sheep transferrins as determined by disc electrophoresis

The relationship between x-ray induced teratogeny and chromosome aberrations in golden hamster embryos

Brain acetylcholinesterase activity at intervals after head irradiation in the rabbit

Ova tranfers in sheep and rabbits : studies on material influences and irradiation damage

Genetic and environmental factors influencing appetite in beef cattle and the relation of appetite to rate and efficiency of gain

Genetic and physiological factors associated with gonadotropic and thyrotropic hormone content of sheep pituitaries

Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

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