Receptors, ProlactinProlactinGrowth HormoneReceptors, SomatotropinMammary Glands, AnimalPlacental LactogenHyperprolactinemiaLactationBromocriptineSwineSTAT5 Transcription FactorPituitary GlandBlood Urea NitrogenCaseinsWeight GainMilk ProteinsHormonesTilapiaJanus Kinase 2Insulin-Like Growth Factor ISheepCattleRandom AllocationPregnancyHypophysectomyMuscle DevelopmentPregnancy, AnimalEatingReceptors, Cell SurfaceRecombinant ProteinsRNA, MessengerOvaryPituitary Gland, AnteriorProgesteroneWoolMeatLuteinizing HormoneOrgan SizeEstrusDrug ImplantsGrowth Hormone-Releasing HormonePituitary HormonesBody CompositionEstradiol20-alpha-DihydroprogesteroneLiverVisceraThyrotropin-Releasing HormoneCorpus LuteumRadioimmunoassayAdipose TissueAbomasumProtein IsoformsHuman Growth HormoneMammary Neoplasms, ExperimentalReceptors, LHSexual MaturationMolecular Sequence DataGene Expression RegulationBase SequenceRabbitsInjections, IntramuscularFatty Acids, NonesterifiedHormone AntagonistsInsulinCastrationSignal TransductionMilkMuscles