Books by R. E. Erb:
Books in the extended shelves:
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Erb, R. E. (Ralph Eugene), 1917-: Factors influencing prolificacy of cattle. I, Reproductive capacity and sterility rates (Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington, 1957), also by R. A. Morrison (page images at HathiTrust)- Erb, R. E. (Ralph Eugene), 1917-: Factors influencing prolificacy of cattle. II, Some evidence that certain reproductive traits are additively inherited (Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, Washington State University, 1959), also by P. M. Hinze and E. M. Gildow (page images at HathiTrust)
- Erb, R. E. (Ralph Eugene), 1917-: Influence of breeding condition of cow at time of artificial service and treatment of semen on nonreturns and nonreturn decline (Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington, 1956), also by F. H. Flerchinger and M. H. Ehlers (page images at HathiTrust)
- Erb, R. E. (Ralph Eugene), 1917-: Metabolism of bull semen. IV, Relationship among physical measurements, metabolic activity, and fertility (Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington, 1955) (page images at HathiTrust)
- Erb, R. E. (Ralph Eugene), 1917-: Metabolism of bull semen. V, Influence of dilution rate and time (Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, State College of Washington, 1956), also by M. H. Ehlers (page images at HathiTrust)
- Erb, R. E. (Ralph Eugene), 1917-: Open shed versus conventional housing for dairy calves (Washington Agricultural Experiment Stations, Institute of Agricultural Sciences, the State College of Washington, 1951) (page images at HathiTrust)
- Erb, R. E. (Ralph Eugene), 1917-: The Relation of simple semen quality tests to fertilizing capacity of bull semen (Washington Agricultural Experiment Stations, the State College of Washington, 1950) (page images at HathiTrust)
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