Pekin duck productivity, physiological stress, immune response and behavior under 20L:4D and 16L:8D photoperiods
Gabrielle M. House, Eric B. Sobotik, Jill R. Nelson, Gregory S. Archer
Topics & Concepts
photoperiodismNewcastle diseaseDarknessBiologyImmune systemCorticosteroneAnimal scienceProductivityEndocrinologyFight-or-flight responseLymphocyteVirusInternal medicineImmunologyBotanyMedicineBiochemistryHormoneGeneMacroeconomicsEconomicsAnimal Nutrition and PhysiologyAnimal Behavior and Welfare StudiesEffects of Environmental Stressors on Livestock