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Filtering by: Creator Bogart, Ralph, 1908- Advisor England, David C.

Effect of rations of various energy to body weight ratios on growth rate and feed efficiency of weaner steers fed to slaughter

Creator:

Schlender, John Ralph

Resource Type:

Masters Thesis

Full Text:

JOHN RALPH SCHLENDER A THESIS submitted to OREGON STATE COLLEGE in partial fulfillment of the
Estimation of the percentage of fat and lean in the edible portion of steer carcasses

Creator:

Kennick, Walter Herbert

Resource Type:

Dissertation

Full Text:

. Anglemier and Ralph Bogart and Professor Alfred · Oliver. The author greatly appreciates the cooperation
Genetic and environmental influences upon litter size and variation of birth weights in Berkshire swine

Creator:

Chapman, Verne Merrill

Abstract:

Litter site and birth weight data compiled from the farrowing records of 275 litters out of 109 purebred Berkshire sows of the Oregon State University swine herd during the years 1953 to 1960 inclusive were used in this study. Genetic and environmental factors influencing four components of reproductive performance, namely,...

Resource Type:

Masters Thesis

Full Text:

. Ralph Bogart, Professor of Animal Science, for his helpful and stimulat- ing advice. Especial thanks
Selection for hybrid female reproductive performance in the mouse

Creator:

Chapman, Verne Merrill

Abstract:

The design of this study was suggested by the following observations: (1) the successful application of recurrent selection techniques in obtaining improvement of hybrid performance in corn and Drosophila, (2) the increased production realized by rotational crossbreeding, and (3) the expression of a relatively large degree of hybrid vigor in...

Resource Type:

Dissertation