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Creator:: Rachapaetayakom, Prateap
Abstract:: Studies have been conducted with broilers and layers fed manually formulated or linear programmed rations. Experiments with broilers have involved the following: 1) determining the lysine requirement with and without cottonseed meal in the ration, 2) formulating by linear programming rations made up from different reported amino acid mixtures and...
Resource Type:: Dissertation

Creator:: Cáceres, Oscar
Abstract:: The records of a population of White Leghorns at the Oregon State Agricultural Experiment Station, submitted to accelerated selection for hen-housed egg production on an individual and a family basis at 40 weeks of age for 18 years, were studied. An analysis was made to determine the relative efficiency of...
Resource Type:: Dissertation

Creator:: Ngam, Joe Eric Tosah
Abstract:: The records of a population of sex-linked dwarf layers at the Oregon State Agricultural Experiment Station subjected to an accelerated selection for hen-housed egg production at 40 weeks of age for a period of over 11 years were analyzed for selection response, and for the estimation of genetic parameters. The...
Resource Type:: Dissertation

Creator:: Oregon State University. Extension Service, Washington State University. Extension, University of Idaho. Extension, Hermes, J. C. (James C.), and Pacific Northwest Cooperative Extension
Abstract:: Hens stop laying eggs for a variety of reasons. External or internal stimuli affect hormone levels, which change the condition of the ovary and oviduct, the organs responsible for egg production. The result of these changes is the reduction or cessation of egg production. The most common stimuli that affect...
Resource Type:: Technical Report

Creator:: Oregon State College. Agricultural Experiment Station and Parker, Jesse Elmer, 1911-
Abstract:: Published June 1951. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Resource Type:: Technical Report

ScholarsArchive@OSU