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Gonadotropins in pituitaries of inbred and linecross beef bulls and effects of irradiation of mammalian pituitary glands on their ability to induce in vitro ovulation of frog ovaries

Creator:: North, Warren Arthur
Abstract:: There were two studies involved in the thesis research. In the first study, variation in the amount of adenohypophysis gonadotropins among 22 individual beef bulls were investigated. These bulls represented four inbred lines, and six linecrosses. The bulls were raised in the Oregon State University purebred herd. The bulls were...
Resource Type:: Dissertation
Full Text:: . The pituitary material was added to test tubes at levels of 150, 125, 100, 75, 50, 25, 10, 5, and 1

Comparative values of liver nicotinamide nucleotide coenzymes, endocrine glands, and their relationships with production traits of diallel crossed beef bulls

Creator:: Anwar-Afghan, Mohammad
Abstract:: This investigation for the first time reports information on the correlation of various forms and ratios of nicotinamide nucleotide coenzymes in the liver tissue and endocrine glands weight with various production traits. Fifty-five inbred and line cross beef bulls raised under standard management conditions and slaughtered at 1000 lbs. body...
Resource Type:: Dissertation
Full Text:: period of graduate study, Special thanks are extended to Harold Richards of the United States Agency

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:: of this study. Special thanks are extended to the author's wife, Shirley, and son, Jeffrey, for

Effectiveness of selection for gains in body weight in beef cattle

Creator:: Hitchcock, Glen Henry
Abstract:: Research has yielded valuable information about the inheritance of body weight in many mammals. The results with one species may not be directly applicable to another species, but since the results do not contradict genetic theory, one must assume that the same general rules apply to all species. When the...
Resource Type:: Masters Thesis
Full Text:: report by Tyler et al. ( 46, p.516 ). Woodward and Clark ( 48, pp.588-592 ) found that sires had a

Serum T₄ and liver NAD and NADP as performance indicators in beef cattle

Creator:: Brokaw, Bryan Edward
Abstract:: The relationships of serum T₄ (thyroxine) levels and liver nicotinamide nucleotide coenzyme (NAD and NADP) levels with production of traits of beef cattle were investigated at both weaning (182 kg) and following performance testing (363 kg). In addition, the value of these parameters as selection criteria for improved performance was...
Resource Type:: Dissertation
Full Text:: graduate committee. Special thanks go to my wife, Jan, for her patient endurance of many hardships during

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:: acknowledged. Special thanks are extended to the author's wife, Sheyla, for her valuable assistance, many

Some genetic and environmental factors influencing the weaning weights of southwestern range cattle

Creator:: Pahnish, O. F. (Otto Floyd), 1920-
Resource Type:: Dissertation
Full Text:: this report is based, and to those who assisted with the collection and con solidation of the data

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

A comparison of metabolism of rapidly and slowly gaining beef cattle

Creator:: MacDonald, Malcolm Allan
Resource Type:: Dissertation
Full Text:: their teachings and advice, have provided the inspiration for this work. Special appreciation is

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:: finalizing and running the computer program was sincerely appreciated. Special thanks are extended to Ervel

ScholarsArchive@OSU

Gonadotropins in pituitaries of inbred and linecross beef bulls and effects of irradiation of mammalian pituitary glands on their ability to induce in vitro ovulation of frog ovaries

Comparative values of liver nicotinamide nucleotide coenzymes, endocrine glands, and their relationships with production traits of diallel crossed beef bulls

Genetics of sheep transferrins as determined by disc electrophoresis

Effectiveness of selection for gains in body weight in beef cattle

Serum T₄ and liver NAD and NADP as performance indicators in beef cattle

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

Some genetic and environmental factors influencing the weaning weights of southwestern range cattle

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

A comparison of metabolism of rapidly and slowly gaining beef cattle

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

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