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Morphology of epididymal spermatozoa from inbred and linecross bulls

Creator:: Turner, H. A.
Abstract:: Data were presented on epididymal spermatozoa from 29 inbred and linecross bulls raised at Oregon State University in connection with the Western Regional Beef Cattle Breeding Project, W-1. The inbred bulls came from four inbred lines. Three of these inbred lines were Herfords and the other line was Angus. The...
Resource Type:: Masters Thesis
Full Text:: of lines I x II and II x I . 19 4. Means for comparing specific combining ability of lines I x III

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:: of the breeds (Columbia, Targhee, and Rambouillet) were maintained at altitudes of 4, 800 to 7, 500

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:: . Pearson, Dr. Arthur S. H. Wu and Dr. John Kiger, for their time and competent advice. To my parents, Mr

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:: +1.27 ±.36 37 3 -0. 05 ±. 11 +0, 09 ±. 08 +0. 23*. 14 +0. 14 ±. 13 +0. 41 ±. 27 65 4 -0.05±. 11 +0.23

Association of genetically determined polymorphic blood components with prolificacies of purebred and crossbred pigs

Creator:: Kray, Roger LeRoy
Abstract:: Crossmatings were accomplished among three semi-closed lines within a population of pigs, for the purpose of investigating effects of crossbreeding on reproductive traits. Two of the lines were purebred (Berkshire and Yorkshire); the third line ("Composite") consisted of descendants from inter se matings among offspring of crosses of the Berkshire...
Resource Type:: Dissertation
Full Text:: of Doctor of Philosoolly in Genetics presented on 4 January 1977 Title ASSOCIATION OF GENETICALI

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:: "nalyzed for its a sco rbic acid concentration by tlne Z, 4-dinitrophenylhydrazine r-nic ro - rnethod 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:: Fragments Fragments (I) (II) G (8% DMSO-EDTA 0.001M) 21 4 19 4 14 4 17 3 15 4 H (2% DMSO-EDTA 0.01M) 16

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:: • • • • • • • • • • • • • • • 4 The Influence of Age at Weaning on Weaning Weigllts • • • • • • • • • • • • • • • • • • • 4

Selection for body weight in synthetic monoparous populations of mice

Creator:: Mason, Robert William
Resource Type:: Dissertation
Full Text:: 9 1' '- 6 10 11 5 17 6 11 17 13 16 3L 3 9 918 7 815 7 916 io 616 1917 36 4 5 11 16 9 L. 13 6 9 15

Performance of three inbred lines of Herford cattle and their linecrosses

Creator:: Munji, Marcus Tebid
Abstract:: Three inbred and relatively unrelated lines of Hereford cattle (1. Lionheart, 2. Prince, and 3. David) developed at the Corvallis branch of the Oregon Agricultural Experiment Station as part of the W-1 project of the Western States were crossed annually from 1963 through 1965 inclusive. Data on 137 inbred and...
Resource Type:: Masters Thesis
Full Text:: Gain Feed Efficiency of Female Calves CONCLUSIONS BIBLIOGRAPHY Page 1 1 3 4 4 8 14 27 27

ScholarsArchive@OSU

Morphology of epididymal spermatozoa from inbred and linecross bulls

Genetic polymorphism of sheep hemoglobin

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

Effectiveness of index and elite selection methods

Association of genetically determined polymorphic blood components with prolificacies of purebred and crossbred pigs

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

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

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

Selection for body weight in synthetic monoparous populations of mice

Performance of three inbred lines of Herford cattle and their linecrosses

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