Muscle DevelopmentMusclesMuscle, SkeletalMeatMuscle ProteinsMuscle Fibers, SkeletalBody CompositionMuscle, SmoothMeat-Packing IndustryMyoD ProteinMuscle, Smooth, VascularAbattoirsMyoblastsMyoblasts, SkeletalCattleMuscle ContractionMyogenic Regulatory FactorsGene Expression Regulation, DevelopmentalMuscle Fibers, Fast-TwitchMuscle Fibers, Slow-TwitchAnimal FeedMyogeninMyogenic Regulatory Factor 5BreedingWeight GainMuscle DenervationAdipose TissueMuscle, StriatedBody WeightAnimal HusbandryRandom AllocationMuscle CellsMyostatinSwineTrimethylsilyl CompoundsMuscle FatiguePectoralis MusclesCell DifferentiationFood HandlingFacial MusclesAnimal Nutritional Physiological PhenomenaEmbryo, NonmammalianSatellite Cells, Skeletal MuscleMyofibrilsLeast-Squares AnalysisMyocytes, Smooth MuscleFood InspectionMuscular DiseasesMyosin Heavy ChainsMitochondria, MuscleSomitesTrenbolone AcetatePAX7 Transcription FactorNeck MusclesOculomotor MusclesMEF2 Transcription FactorsTime FactorsZebrafishChick EmbryoMuscle SpindlesExtremitiesMuscle RelaxationSarcomeresCrosses, GeneticEatingPhenotypeRespiratory MusclesMuscle WeaknessMuscular AtrophyMolecular Sequence DataPapillary MusclesRNA, MessengerIn Situ HybridizationCells, CulturedLarvaPostmortem ChangesPaired Box Transcription FactorsOrgan SizeTranscription FactorsZeranolDietAbdominal MusclesMesodermRegenerationSus scrofaQuadriceps MuscleDrug ImplantsZebrafish ProteinsPhenethylaminesFlight, AnimalSheepFood-Processing IndustryChickensMasseter MuscleBase SequenceDrosophila ProteinsActinsDesminMasticatory MusclesGene Expression Regulation