Animal genetics / Frederick B. Hutt.

  • Hutt, Frederick Bruce, 1897-1991.
Date:
[1964]
Catalogue details

Licence: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)

Credit: Animal genetics / Frederick B. Hutt. Source: Wellcome Collection.

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    xii CONTENTS digestion in Grey Karakuls. Peculiar Postures of the Pastel Mink. Pleiotropy in Smooth-tongued Calves. Genetic In- tersexuality in Polled Goats. 14 Extra-nuclear Transmission and Maternal Influences 302 Plastids and Plasmagenes. Plasmagenes in Killer Para- mecia. Maternal Transmission of Pathogenic Agents. Hemolytic Disease in the Horse. Hemolytic Disease in Pigs and People. Blocked Riboflavin, a Maternal EfiFect in the Fowl. Body Size in Shire X Shetland Crosses. Mothers Have Limits. Telegony. Concluding Comments. 15 Heredity and Environment 321 The Diet. Physical State of Food. Effects of Tempera¬ ture. Effects of Sunlight. Effects of Pathogens and Allergens. Effects of Management. Twins. The Twin- Study Method. Twins for Other Experiments. Herita- bility. Relation of Environment to Selection. Breeds for Special Environments. 16 Selection and Changing Populations 345 Natural Selection in Biston betularia. The Fast-working Oysters of Malpeque Bay. Natural Selection; Other Exam¬ ples. Natural Selection and Evolution. Mass Selection. The Fetish of the Pedigree. Progeny-testing. Criticisms of Progeny-testing. Complications in Selection. Effective¬ ness of Selection. Control Populations. Effect of Random Breeding on a Population. Random Breeding, With Elim¬ ination of the Recessive. The Hardy-Weinberg Law. London's Cats Obey the Hardy-Weinberg Law. Prospec¬ tive Veterinarians and the Hardy-Weinberg Law. Popu¬ lations Differing or Changing. 17 Inbreeding and Hybrid Vigor 377 Increase of Homozygosity With Inbreeding. General Effects and Risks. Pure Lines. Degrees of Inbreeding. Hybrid Vigor. Genetic Basis of Hybrid Vigor. Crosses Between Species. Crosses Between Breeds. Crosses Be¬ tween Strains Within Breeds. Utilization of Hybrid Vigor in the Silkworm. Breeding for Hybrid Vigor.