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Estimates of combining abilities, heterotic effects and phenotypic correlations among in-bred lines of beef cattle and their line-crosses

Creator:: Humes, Paul Edwin
Abstract:: The investigations were based on a complete diallel cross among three inbred lines of Hereford cattle. Records of Angus calves born during the same period were used to obtain more accurate estimates of environmental effects and to determine breed differences among the various traits included in the study. Estimates of...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE THESIS OF PAUL EDWIN HUMES for the

Genetic analysis of maternal ability and evaluation of some environmental factors affecting preweaning performance of beef cattle

Creator:: Eftekhari-Shahroudi, Feridoun, 1939-
Resource Type:: Dissertation
Full Text:: . Paul E. Bernier, Dr. Roger C. Peterson, Dr. N,rbert A. Hartmann, Jr., Dr. Harry K. Phinney, Dr

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:: Cardenas Dr. Warren Kronstad Dr. Paul Roberts Dr. D. C. England significantly aided the accomplishment of

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:: five, A, B, C, D, E, and four, A, B, C, D, types were observed in the Suffolk and Lincolns re

Genetic, environmental and residual maternal influences on cow productivity and growth of calves

Creator:: De Baca, Roberto Luciano C., 1930-
Resource Type:: Dissertation
Full Text:: PRODi.TIVIT' AND GROWTH OF CALVES by ROBERT L1tIANO C de BACA A TISIS submitted tO OREGON STATE

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:: , Paul A. Roberts, and Dr. Kenneth E. Rowe for their time and their competent advice. My sincere thanks

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

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:: graduate students, Carroll Nix and Paul Humes. These people encouraged and assisted the author even when

Analyses of physical sources of variation in estimated genetic growth parameters in beef cattle

Creator:: Sabin, Samuel Waybright
Resource Type:: Dissertation
Full Text:: . tro ry n!.ltr. forlp tirf apletal rccognttl'oa I'a d$c for htr prtl,ucrr .neoalra6alfst and, d votl

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:: GEETIC AND ENVThONMETAL FACTOI INFLIJENCG APPETITE Th BF C

ScholarsArchive@OSU

Estimates of combining abilities, heterotic effects and phenotypic correlations among in-bred lines of beef cattle and their line-crosses

Genetic analysis of maternal ability and evaluation of some environmental factors affecting preweaning performance of beef cattle

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

Genetics of sheep transferrins as determined by disc electrophoresis

Genetic, environmental and residual maternal influences on cow productivity and growth of calves

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

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

Genetic polymorphism of sheep hemoglobin

Analyses of physical sources of variation in estimated genetic growth parameters in beef cattle

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

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