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The inheritance of DDT resistance in house flies

Creator:: Johnston, Elbert Felton
Resource Type:: Masters Thesis
Full Text:: of the F1 X Susceptible Flies . . . . . . . 20 6 ResIstance In Flies Produced by Backcrossing Fi

Heart rate patterns in beef cattle

Creator:: Ratarasarn, Sucheep
Resource Type:: Dissertation
Full Text:: Date thesis is presented September 20, 196]. Typed by Vorna Angleniler ACKN OWLEDGEME Thanks are

Response of scorbutic guinea pigs to ascorbic acid and adrenocorticotropic hormone (ACTH)

Creator:: Riker, Joseph Thaddeus III
Abstract:: Thirty-six female guinea pigs were placed on a scorbutogenic diet for 14 days and then divided into groups of four. Three groups received adrenocorticotropic hormone (ACTH) with each group given 10, 20, or 40 units. Three groups each received 50 mg of ascorbic acid and three groups received 50 mg...
Resource Type:: Masters Thesis
Full Text:: horrnone (ACTH) with each group given 10, 20, or 40 units, 'Three groups each received 50 rng of ascorbic

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:: were removed, weighed, individually identi- fied, sealed in glass vials, and frozen at -20 °C. until

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:: sincerely appreciated. Special thanks are extended to Miss Barbara Finch and Mr. Joe Templeton for their

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:: sincerely appreciated. Special thanks are extended to Miss Barbara Finch and Mr. Joe Templeton for their

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:: • • • • • • • • • • • • • • • 37 2 Means of unadjusted weaning weights and mean ages of bull calves in 20-day age arrays within

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

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:: . Kronstad assisted greatly in comple- tion of this study. A special note of thanks is extended to Dr. A. L

Performance in relation to weaning response in production tested beef cattle

Creator:: Williams, Lloyd Grainger
Resource Type:: Masters Thesis
Full Text:: . Special gratitude is extended to Dr. Fred F. McKenzie, Head of the Department of Animal Husbandry, for

ScholarsArchive@OSU

The inheritance of DDT resistance in house flies

Heart rate patterns in beef cattle

Response of scorbutic guinea pigs to ascorbic acid and adrenocorticotropic hormone (ACTH)

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

Effects of radiation on selection progress in mice

Effects of radiation on selection progress in mice

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

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

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

Performance in relation to weaning response in production tested beef cattle

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