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Principles of Livestock Breeding Sewall Wright

Principles of Livestock Breeding

Sewall Wright

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Kindle Edition
75 pages
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 About the Book 

This 1920 classic contains the following chapters:Evolution of Animal BreedingReproductionThe Cell TheoryThe Reproductive CellsSexual MaturityFrequency of ServiceThe Breeding Season and Oestrous CycleThe Gestation PeriodFertilityHybridsTheMoreThis 1920 classic contains the following chapters:Evolution of Animal BreedingReproductionThe Cell TheoryThe Reproductive CellsSexual MaturityFrequency of ServiceThe Breeding Season and Oestrous CycleThe Gestation PeriodFertilityHybridsThe Reproductive Cells in Relation to HeredityGeneral ConsiderationsModification of HeredityInheritance of Acquired CharacteristicsTelegonyMaternal ImpressionsDetails of Hereditary TransmissionBlending and Alternative InheritanceHereditary UnitsColor and Albinism in Guinea PigsMendelian InheritanceThe Chromosomes and HeredityLinkageThe Determination of SexThe Normal MethodSex-Linked InheritanceThe Sex RatioThe FreemartinMendelian Hereditary in LivestockPolled CattleColors of CattleColors of HorsesColors of HogsColors of SheepColors and Comb Shape of PoultryHereditary of Form and Function in LivestockRelations of Theory to PracticeEquality of Inheritance from the SexesPrepotencyVariationFixation of Hereditary by SelectionFixation of Hereditary by IndreedingIsolation of Genetic Differences by InbreedingThe Effect of Inbreeding on VigorCrossbreedingThe System of BreedingThe Purposes of Livestock BreedingUniformity of TypeCrossbreeding for the MarketImprovementGrading UpMethods of SelectionGeneral ConsiderationsIndividual Performance and Livestock JudgingThe Breeding RecordPedigreeThe Value of PurebredsDairy CattleQuality in MeatBreeding and Soundness in HorsesPoultrySatisfaction from Pleasing Appearance