Estrus SynchronizationEstrusInsemination, ArtificialMelengestrol AcetateFertility AgentsProgesterone CongenersCortical SynchronizationDinoprostEstrus DetectionAdministration, IntravaginalProgesteroneOvulationCattlePregnancy RatePregnenedionesFertility Agents, FemaleFertilizationPregnancyGonadotropin-Releasing HormoneEstradiolElectroencephalography Phase SynchronizationEstrous CycleBiological ClocksPostpartum PeriodOscillometryDiestrusFertilityPregnadienesPeriodicitySexual MaturationTime FactorsRandom AllocationAnimal HusbandryReproductionDrug ImplantsBreedingLactationGonadotropins, EquinePregnancy, AnimalIntercostal NervesLuteinizing HormoneAction PotentialsNerve NetLitter SizeElectroencephalographyCorpus LuteumOvarian FollicleSwineProestrusBeta RhythmModels, NeurologicalThoracic NervesWeaningAnestrusOvarySexual Behavior, AnimalTrenbolone AcetateNeuronsAlpha RhythmPessariesDairyingNonlinear DynamicsMagnetoencephalography