MesocricetusGoldfishCricetinaeIleitisHibernationPhotoperiodRodent DiseasesCarpsHarderian GlandSea BreamTestisSex RatioEstrous CycleSexual Behavior, AnimalLitter SizeTriploidyOdorsLightGillsUterusCircadian RhythmDisease Models, AnimalSpecies SpecificityTestosteroneSexual MaturationEstrusFish ProteinsAgingTime Factors