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Veterinary MedicineAnimal SciencesPoultry SciencePoultry ReproductionSemen EvaluationSemen ProcessingSemen CollectionSemen CryopreservationSemen FreezingSemen HandlingSemen PreservationSemen StorageAnimal Sperm CryopreservationBoar Semen FreezingComparative Case Study DesignCryogenic ProcessesCryogenic Sample PreservationEquine Semen CryopreservationFrozen Semen PreservationFrozen Semen Storage