PubertyPuberty, PrecociousPuberty, DelayedSexual MaturationAge Determination by SkeletonGonadotropin-Releasing HormoneKisspeptinsLuteinizing HormoneBody HeightTestosteroneBody WeightGrowth DisordersTestisReproductionHypogonadismEstrusFollicle Stimulating HormoneGrowthSex CharacteristicsAdolescent DevelopmentAge FactorsOvaryGonadotropinsEstradiolHypothalamic DiseasesAgingSexual DevelopmentAdrenarcheOvulationSex FactorsFertilityFibrous Dysplasia, PolyostoticPregnancyGrowth HormoneNeurosecretory SystemsWeaningGonadal Steroid HormonesHypothalamusDrug ImplantsGonadal HormonesNeurokinin BBone DevelopmentCattleTurner SyndromeScrotumOxandroloneOrgan SizeChild DevelopmentTriptorelin PamoateProgesteroneBody CompositionGonadotropins, PituitaryEstrus DetectionHypothalamo-Hypophyseal SystemPituitary GlandLongitudinal StudiesSeasonsCryptorchidismAnthropometryGenitalia, MaleWeight GainInsulin-Like Growth Factor IUterusBody Mass IndexOvariectomyOrchiectomyEstrous CycleInhibinsSexual Behavior, AnimalLeptinMammary Glands, AnimalAndrogensBreedingGonadsAdoptionAdrenal Hyperplasia, CongenitalTime FactorsReference ValuesSwineHormonesPrenatal Exposure Delayed EffectsOvernutritionLitter SizeVirilismRadioimmunoassayHamartomaLeuprolideSpermatogenesisInfant, NewbornProgesterone CongenersReceptors, LHRH46, XY Disorders of Sex DevelopmentGonadotropins, EquineSheepTestolactoneCross-Sectional StudiesAnalysis of VarianceSertoli CellsHuman Growth HormoneEstrogens