Biographical Memoirs Volume 57 (1987) / Chapter Skim
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Jay Laurence Lush
Jay Laurence Lush
Pages 276-305
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From page 277... ...
I spent nine months in the Air Force immediately after receiving the ' Autobiographical statement, National Academy of Sciences, 1967.
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, I went to the Texas Agricultural Experiment Station at College Station, Texas. An important bit of Lush's personal history for the following year 1923- was his marriage to Adaline Lincoln.
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Jay L Lush, sponsored jointly by the American Society of Animal Science, American Dairy Science Association, and Poultry Science Association, Virginia Polytechnic Institute and State University, Blacksburg, Virginia, July 29, 1972 (1973)
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E Dickerson, a former colleague at Iowa State University, referred in his symposium paper to the influence Sewall Wright's work had on Bushes biological and statistical think~ng: Animal Science, American Dairy Science Association, and Poultry Science Association, Blacksburg, Virginia, July 29, 1972 (1973)
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jay L Lush, American Society of Animal Science, American Dairy Science Association, and Poultry Science Association, Blacksburg, Virginia, July 29, 1972 (1973)
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Many of Dr. Lush's publications from 1926 to 1930 could be described as developing and using more accurate ways to measure quantitative traits.'3 Lush undertook studies using records collected on swine, dairy cattle, beef cattle, sheep, goats, poultry, and honeybees.
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From page 283... ...
lay Laurence Lush," in Proceedings of the Animal Breeding and Genetics Symposium in Honor of Dr..Jay L Lush, American Society of Animal Science, American Dairy Science Association, and Poultry Science Association, Blacksburg, Virginia, July 29, 1972 (1973)
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From page 284... ...
If the same fraction of the population must be saved but there is a choice of bases on which selection may be macle, then the difference in results depends only on how accurately each inctividual's breeding value can be preclictect from each of these bases."~5 In comparing the three bases of selection in this paper, Figure ~ is usect as a graphic way of looking at the interrelationships between the variables. The arrows in this diagram react from "cause" to "erect," and the value attached to each one is clefinect as a path coefficient (stanclarcI partial regression coefficient)
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L Lush, "Family Merit and Individual Merit as Bases for Selection," part I, American Naturalist, 81(~1947~:246.
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in a form that relates correlation coefficients to their path coefficient components. Some of the pertinent correlations in terms of path coefficients are given below the diagram in Figure I
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L Lush, "Family Merit and Individual Merit as Bases for Selec tion," part I, American Naturalist, 81~1947~:256.
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but a small part are in W He also points to the neecI to keep in mind other factors: the fiducial limits of the estimates; the role that mutations might play; the effect of selection in the same or in a clifferent direction within the population; the need for experiments to check on the theory involved in this work; ancT "the naive view, repeatecIly disproven but still often inferred to be axiomatic, that family, breect, and race are unimportant, or even unreal, unless the families, breeds, or races are so distinct that they clo not overlap at all." Lush showed statistically that "family selection is most superior to mass selection when famity members resemble each other least; i.e., when the families overlap widely in their phenotypes and t is therefore low!
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Some of the sources of information used by Lush in his research were the records from private farms enrolled in the Iowa Cow Testing Association, on animals registered in the breech associations and on poultry of the Kimber Poultry Farm. These proviclecl an insight into the genetic and environmental sources of variation in economically important traits uncter commercial conditions.
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Jay L Lush, American Society of Animal Science, American Dairy Science Association, and Poultry Science Association, Blacksburg, Virginia, July 29, 1972 (1973)
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He was also instrumental in the formation and guidance of the National Poultry Breeders' Roundtable, an organization of commercial poultrymen and academic staff that meets annually to discuss research in genetics and in animal and plant breecling. The meeting in 1969 (Eighteenth Annual Session, May 7-~)
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An avalanche is contagious in that once it starts, it jars things loose for hundreds of yards around." A fitting ending to this biographical memoir is the symposium statement of Touchberry: "He tEush] has defined the problems of genetically changing farm animals in a logical, biological, quantitative and economic way.
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JAY LAWRENCE LUSH HONORS AND DISTINCTIONS HONORARY DOCTORAL DEGREES 1957 Royal Agricultural College of Sweden 1957 Faustus Liebig University, Giessen, Germany 1958 Royal Veterinary and Agricultural College of Denmark 1964 Michigan State University 1969 University of Illinois 1970 Kansas State University 1970 University of Wisconsin 1971 Swiss Federal Institute of Technology, Zurich 1975 Agricultural University of Norway AWARDS 293 1946 Morrison Award of the American Society of Animal Science 1956 Honored Guest, American Society of Animal Science 1957 1958 Charles F Curtiss Distinguished Professor in Agriculture, Iowa State University Borden Award for research in dairy production, American Dairy Science Association 1960 Herman von Nathusius Medal of the German Society for Animal Breeding 1965 Armour Award for animal breeding and genetics, American Society of Animal Science 1965 Medal of the Mendel Centennial Association, Czechoslovakia 1966 Order of Merit in Science, Italy 1968 National Medal of Science MEMBERSHIPS 1967 Member, National Academy of Sciences 1972 Member, Royal Society of Edinburgh Foreign member of the Academies of Science or Agriculture of Sweden, Norway, and Italy
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Prod., 1925: 115 -17. 1926 Practical methods of estimating the proportions of fat and bone in cattle slaughtered in commercial packing plants.
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A study of the accuracy of measurements of dairy cattle.
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290A. An empirical test of the approximate method of calculating coefficients of inbreeding and relationship from livestock pedigrees.
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Freshening ages of purebred cows in Iowa cow testing associations.
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Pedigree promise and progeny test among sires proved in Iowa Cow Testing Associations.
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Johnson. Repeatability of type ratings in dairy cattle.
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The accuracy of linear body measurements of dairy cattle.
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How dominance and gene interaction modify the effectiveness of breeding plans. In: Proceedings of the First Poultry Breeders Roundtable, pp.
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Stat., 7:7-22. 1956 Dairy cattle genetics.
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Der Sinn und die Bedeutung des Erblichkeitsanteiles. In: Vortrage des II Internationalen Ferienburses u.s.w., Mariensee, Germany., pp.
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In: Proceedings of the Eighteenth Annual Session, National Poultry Breeders Roundtable, pp.
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pay L Lush, American Society of Animal Science, American Dairy Science Association, and Poultry Science Association, Blacksburg, Virginia, July 29, 1972, pp.
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