LeptinReceptors, LeptinPinnipediaCetaceaAdipose TissueObesityMice, ObeseHypothalamusProteinsAdipocytesGene Expression RegulationAdipose Tissue, BrownRNA, MessengerInsulinBody WeightPromoter Regions, GeneticGenotypeBody Mass IndexGene ExpressionPregnancyPolymorphism, GeneticPolymorphism, Single NucleotideCattleGenetic VectorsPolymerase Chain ReactionDNA PrimersBase SequenceEatingSequence Analysis, DNAReceptors, Cell SurfaceAdiponectinArcuate NucleusSTAT3 Transcription FactorGhrelinEnergy Metabolism