Reproduction · 1973 · 75 citations · 6 references
AgriculturePhysiologyPoultry SciencePoultry ReproductionReproductive EndocrinologyReproductive PhysiologyEgg Laying PhysiologyHormonal Regulation Of ReproductionOvarian CycleReproductive PerformanceEgg Laying CyclesLaying Hen BehaviorOvulation MechanismsOvulation PhysiologyOvulation Rate
Summary. Continuous variations in circulating levels of plasma luteinizing hormone (LH) were measured over a 24-hr period in laying hens, by radioimmunoassay. A single LH peak, closely linked to the dark period, was associated with the occurrence of an ovulation. No other consistent changes in LH levels were found, apart from a small rise at the onset of darkness.
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Fractionation and assay of chicken pituitary hormones
Colin G. Scanes, B. K. Follett · British Poultry Science · 1972 · 70 citations