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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:: and genetic recombination in Zea mays L. AN ABSTRACT OF THE THESIS OF DONALD DEAN JONES for the

Genetic and environmental differences in important economic traits of crossbred sheep in spring lamb production

Creator:: De Baca, Roberto Luciano C., 1930-
Resource Type:: Masters Thesis
Full Text:: from the four breed crosses of ewes bred to Southdown rams TA$L OF CONTINTS (CoNIINUED) Ú

Response of genetically different groups of sheep to hill pasture conditions

Creator:: Johnston, Elbert Felton
Resource Type:: Dissertation
Full Text:: milk from the ewes. Among them are Hammond (35, p.95) who reports that the size and strength of lambs

Some genetic and environmental factors affecting weaning weights of lambs

Creator:: Dahmen, J. J. (Jerome John), 1919-
Abstract:: Eight purebred rams (four Suffolk and four Panama) previously selected as high and low on the basis of post-weaning performance feed test of 84 days were used each of three years. Each of the rams was mated to approximately 25 grade Panama ewes each year. One ram and 25 ewes...
Resource Type:: Dissertation
Full Text:: L. Hisaw, Jr. , Associate Professor of Zoology; and Dr. Rod V. Frakes, Associate Professor of

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:: PMS for initiating ovulation (Hammond, Hammond and Parks, 1942; Casida, Warwick and Meyer, 1944

Some genetic and environmental factors affecting "net efficiency" of beef cattle

Creator:: Nelms, George Estes, 1927-2011
Resource Type:: Masters Thesis
Full Text:: is made. They state 1n view of tb.ia, animals should be compared at ident~l weights. The age an

Relation of rate of gain to feed efficiency in beef cattle

Creator:: Blackwell, Robert Leighton
Resource Type:: Masters Thesis
Full Text:: early as 1920, Hammond (16, p.256) reported that steers were heavier than heifers at 22 months-of-age

Effectiveness of selection for productive characteristics in developing the Montana no. I hogs

Creator:: McEwen, Wesley Charles
Abstract:: One of the most important productive characteristics of hogs is reproductive efficiency. Reproductive efficiency is best measured by litter size at weaning. Litter size at birth and weight of the pigs at birth are among the most important factors affecting litter size at weaning. It has been demonstrated that less...
Resource Type:: Masters Thesis
Full Text:: Privacy Dean of Graduate School Date thesis is presented j gs Typed by Mrs. L. . Clamo ¿I

The inheritance of growth and carcass characteristics in sheep

Creator:: Busch, Robert Edward
Resource Type:: Dissertation
Full Text:: wskiVat514., in L.7 Title L S idh and Care Abstract -roved S. --"Alialor-qUeesor) heraattries

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:: Illustrated in Table l 15 Table 1. METHOD OF CALCULATING VtEIGHTED MEAN DIFFERENCES Direction Average

ScholarsArchive@OSU

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

Genetic and environmental differences in important economic traits of crossbred sheep in spring lamb production

Response of genetically different groups of sheep to hill pasture conditions

Some genetic and environmental factors affecting weaning weights of lambs

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

Some genetic and environmental factors affecting "net efficiency" of beef cattle

Relation of rate of gain to feed efficiency in beef cattle

Effectiveness of selection for productive characteristics in developing the Montana no. I hogs

The inheritance of growth and carcass characteristics in sheep

Effectiveness of selection for gains in body weight in beef cattle

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