BreedingDystociaCattleHybrid VigorWeaningCrosses, GeneticMeatHornsLeast-Squares AnalysisWeight GainBody WeightBody CompositionBirth WeightCattle DiseasesAnimal HusbandryAnimal FeedRandom AllocationReproductionAnimal Nutritional Physiological PhenomenaSexual MaturationQuantitative Trait, HeritableEatingAdipose TissuePregnancyLactationModels, GeneticRegression AnalysisAnalysis of VarianceGenotypeLinear ModelsModels, BiologicalMuscle, SkeletalPhenotypeGenetic Variation