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List of works by Robert M. Koch

Adjustment factors for carcass, gain and feed traits of beef cattle

scientific article published on 01 February 1966

An Analysis of Reproductive Traits in Beef Cattle

scientific article published on 01 June 1973

Between- and within-breed genetic analysis of calving traits and survival to weaning in beef cattle

scientific article published on 01 July 1986

Breed effects and heterosis in advanced generations of composite populations for birth weight, birth date, dystocia, and survival as traits of dam in beef cattle

scientific article published on September 1991

Breed effects and heterosis in advanced generations of composite populations for growth traits in both sexes of beef cattle

scientific article published on August 1991

Breed effects and heterosis in advanced generations of composite populations for preweaning traits of beef cattle

Breed effects and heterosis in advanced generations of composite populations for puberty and scrotal traits of beef cattle

scientific article published on July 1991

Breed effects and heterosis in advanced generations of composite populations for reproduction and maternal traits of beef cattle

Breed effects and heterosis in advanced generations of composite populations on actual weight, adjusted weight, hip height, and condition score of beef cows

scientific article published on June 1, 1992

Breed effects and retained heterosis for growth, carcass, and meat traits in advanced generations of composite populations of beef cattle

scientific article published on 01 April 1994

Breed effects, dietary energy density effects, and retained heterosis on different measures of gain efficiency in beef cattle

scientific article published on 01 May 1994

Breed effects, retained heterosis, and estimates of genetic and phenotypic parameters for carcass and meat traits of beef cattle

article

Characterization of Biological Types of Cattle-Cycle III: I. Birth and Weaning Traits2,6

scientific article published on 01 February 1979

Characterization of biological types of cattle (Cycle IV): carcass traits and longissimus palatability

scientific article published on 01 May 1996

Characterization of biological types of cattle (cycle III). IV. Postweaning growth and feed efficiency

scientific article published on 01 February 1984

Characterization of different biological types of steers (cycle IV): wholesale, subprimal, and retail product yields

scientific article published on September 1, 1997

Comparison of models for estimation of genetic parameters for mature weight of Hereford cattle

scientific article published in March 2002

Cumulative selection and genetic change for weaning or yearling weight or for yearling weight plus muscle score in Hereford cattle

scientific article published in April 1994

Direct and maternal genetic responses to selection for weaning or yearling weight or for yearling weight and muscle score in Hereford cattle

scientific article published in October 1995

Economic evaluation of heterosis and culling policies for lifetime productivity in Hereford, Angus, shorthorn, and crossbred cows

scientific article published in August 1992

Effect of competition on gain in feedlot bulls from Hereford selection lines

article

Effect of marbling degree on beef palatability in Bos taurus and Bos indicus cattle.

scientific article

Effect of selection for growth traits on age and weight at puberty in bovine females

scientific article

Effects of Heterosis on Maternal Performance and Milk Production in Hereford, Angus and Shorthorn Cattle

scientific article published on April 1, 1974

Effects of Heterosis on Reproduction in Hereford, Angus and Shorthorn Cattle2

scientific article published on April 1, 1974

Effects of age, weight, and fat slaughter end points on estimates of breed and retained heterosis effects for carcass traits

scientific article published in January 2006

Effects of breed and retained heterosis on milk yield and 200-day weight in advanced generations of composite populations of beef cattle

scientific article published in August 1992

Environmental effects on neonatal mortality of beef calves

scientific article published on 01 February 1993

Estimated breeding values for meat characteristics of crossbred cattle with an animal model

scientific article published on February 1, 1992

Estimates of genetic parameters for 320-day pelvic measurements of males and females and calving ease of 2-year-old females

article

Genetic Parameters in Straightbred and Crossbred Beef Cattle

scientific article published on 01 October 1970

Genetic Relationships among Growth and Carcass Traits of Beef Cattle

scientific article published on 01 September 1971

Genetic Variation in Total and Differential Growth of Carcass Components in Beef Cattle

scientific article published on 01 August 1969

Genetic analysis of carcass traits of steers adjusted to age, weight, or fat thickness slaughter endpoints

scientific article published in April 2005

Genetic and phenotypic (co)variances for growth and carcass traits of purebred and composite populations of beef cattle

scientific article published on July 1, 1995

Genetic and phenotypic (co)variances for production traits of female populations of purebred and composite beef cattle

scientific article published in August 1995

Genetic and phenotypic (co)variances for production traits of intact male populations of purebred and composite beef cattle

scientific article published in August 1995

Genetic correlations among sex-limited traits in beef cattle

scientific article published on 01 May 1984

Genetic parameters for six measures of length of productive life and three measures of lifetime production by 6 yr after first calving for Hereford cows

scientific article published on 01 July 2004

Genetic parameters for stayability, stayability at calving, and stayability at weaning to specified ages for Hereford cows

scientific article published in September 2005

Genetic response to selection for weaning weight or yearling weight or yearling weight and muscle score in Hereford cattle: efficiency of gain, growth, and carcass characteristics

scientific article published in March 2004

Germplasm evaluation in beef cattle--Cycle IV: postweaning growth and puberty of heifers

scientific article published on 01 October 1999

Germplasm evaluation in beef cattle-cycle IV: birth and weaning traits

scientific article published on 01 October 1998

Growth, digestive capability, carcass, and meat characteristics of Bison bison, Bos taurus, and Bos × Bison

scientific article published on 01 May 1995

Heterosis for lifetime production in Hereford, Angus, shorthorn, and crossbred cows

scientific article published on 01 August 1992

Heterosis for survival and dentition in Hereford, Angus, Shorthorn, and crossbred cows

scientific article

Heterosis retained in advanced generations of crosses among Angus and Hereford cattle

Influence of postweaning gain interval on estimates of heritability and genetic correlations

scientific article published on 01 December 1982

Lifetime production of beef heifers calving first at two vs three years of age.

scientific article

Longissimus muscle quality, palatability and connective tissue histological characteristics of bulls and steers fed different energy levels and slaughtered at four ages

scientific article published on 01 July 1986

Maternal heterosis and grandmaternal effects in beef cattle: postweaning growth and carcass traits

Maternal heterosis and grandmaternal effects in beef cattle: preweaning traits

scientific article published on 01 July 1987

Number of calves born, number of calves weaned, and cumulative weaning weight as measures of lifetime production for Hereford cows

scientific article published in July 2004

Parameter estimates for direct, maternal, and grandmaternal genetic effects for birth weight and weaning weight in Hereford cattle.

scientific article published in October 1998

Relationship of growth hormone, prolactin and thyrotropin secretion to individual and progeny performance of Hereford bulls

scientific article published on 01 July 1987

Relative contributions of subcutaneous and intermuscular fat to yields and predictability of retail product, fat trim, and bone in beef carcasses

scientific article published on June 1, 1998

The Role of Maternal Effects in Animal Breeding: VI. Maternal Effects in Beef Cattle

scientific article published on December 1, 1972

Twinning in cattle: I. Foundation animals and genetic and environmental effects on twinning rate

scientific article published on July 1990

Twinning in cattle: II. Genetic and environmental effects on ovulation rate in puberal heifers and postpartum cows and the effects of ovulation rate on embryonic survival

Twinning in cattle: III. Effects of twinning on dystocia, reproductive traits, calf survival, calf growth and cow productivity

article by Keith E. Gregory et al published October 1990 in Journal of Animal Science

William J. Loeffel, 1894-1962: a brief biography

scientific article

Yield grades and cutability of carcass beef with and without kidney and pelvic fat.

scientific article published in October 1986