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Publications by R. K. Johnson

Comparison of Three-Breed and Backcross Swine for Litter Productivity and Postweaning Performance

Journal of Animal Science

English

Index Selection and Feed Intake Restriction in Swine. II. Effect on Energy Utilization

Journal of Animal Science

English

Studies on the Feasibility of Predicting Feedlot Performance From Certain Laboratory Grain Analyses

Journal of Animal Science

English

The Relationships Between Plasma Progesterone and LH and the Numbers of Corpora Lutea and Embryos in Purebred and Crossbred Gilts

Journal of Animal Science

English

Maternal Heterosis in Swine: Reproductive Performance and Dam Productivity

Journal of Animal Science

English

The Effects of Level of Crude Protein on Performance of Growing Boars

Journal of Animal Science

English

Effects of Errors in Pedigree on Three Methods of Estimating Breeding Value for Litter Size, Backfat and Average Daily Gain in Swine.

Journal of Animal Science

English

Testicular Development and Endocrine Characteristics of Boars Selected for Either High or Low Testis Size

Journal of Animal Science

English

Sperm Production in Boars After Nine Generations of Selection for Increased Weight of Testis.

Journal of Animal Science

English

Reproductive Performance for Four Breeds of Swine: Crossbred Females and Purebred and Crossbred Boars

Journal of Animal Science

English