Index Catalog // ScholarsArchive@OSU

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:: '.2//4':t 2/- iZl:Z*--7---F - ',,'(Major profes,bor) The first study utilized ova transfer in

Hematological study of genetically different lines of growing beef cattle

Creator:: Bhannasiri, Tim
Resource Type:: Dissertation
Full Text:: HAEMATOLOGICAL STUDY OF GENETICALLY DIFFERENT LINES OF GROWING BEEF CATTLE INTRODUCTION In the field of

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

Creator:: Jones, Donald Dean
Abstract:: The present investigation with the chromosomes of Zea mays was conducted to determine: (1) the effects of chelating agents on the process of cytological exchange, and (2) the effects of chelating agents on genetic recombination. To ascertain the influence of chelating agents on cytological exchange, four known heterozygolis paracentric inversion...
Resource Type:: Dissertation
Full Text:: other cases no such relationship was observed. The study may provide valuable clues as to the specific

Reproductive performance in the rat in relation to selection for time of puberty

Creator:: Warren, Edward Perrin
Resource Type:: Dissertation
Full Text:: ~) • • • • • • • • • • • • 2.3 4. llean Ages (in D&78) at Time of Vaginal Opening ot Selected Dama b7 Line and Generation

Actual and predicted response to selection on maternally influenced traits in the mouse

Creator:: Lind, Ronald Egnard
Abstract:: An experiment was conducted to determine if selection from standardized litters would be effective in separating lines of mice selected for increased and decreased litter weight at 14 days of age, and if response to selection on this maternally influenced trait could be accurately predicted. Data were collected on litter...
Resource Type:: Dissertation
Full Text:: results of the first 11 generations of a long term selection study on six week growth response in mice

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:: who made a contribution to this study in many different ways: To Dr. J. E. Oldfield, Head of the

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:: professor) There were two studies involved in the thesis research. In the first study, variation in 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:: studies have shown increased incidence of chromosome aberrations associated with tera- togenesis in all

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:: age in cattle and sheep. In this study, Allcroft and Folley could find no correlation between

Heart rate patterns in beef cattle

Creator:: Ratarasarn, Sucheep
Resource Type:: Dissertation
Full Text:: initiatloel of this study and his foresight in provid. ing adequate facilities for continuation of the

ScholarsArchive@OSU

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

Hematological study of genetically different lines of growing beef cattle

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

Reproductive performance in the rat in relation to selection for time of puberty

Actual and predicted response to selection on maternally influenced traits in the mouse

Electrocardiograms and related variables of dwarf beef cattle

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

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

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

Heart rate patterns in beef cattle

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