ELECTRONIC ANIMAL PRODUCTION SYSTEMS THAT MANAGE THE REPRODUCTION AND CARE-TAKING OF PIGS, USING A COMBINATION OF RADIO FREQUENCY IDENTIFICATION TECHNOLOGY, ELECTRONICS, PNEUMATICS, AND MECHANICAL DEVICES AND SUBASSEMBLIES THAT IDENTIFY AND REACT TO THE NEEDS OF THE ANIMALS OR THE COMMANDS OF THE MANAGER ACCORDING TO THE SPECIFIC REQUIREMENTS OF OR PLAN FOR EACH ANIMAL, SUCH SYSTEMS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS, ANTENNAE, OPERATING SOFTWARE, SENSORS, FEED DISPENSERS, FEED CONTAINERS, SORTING GATES,WATER DISPENSERS, WATER CONTAINERS, SCALES, AND MARKERS; COMPUTER FIRMWARE, PROGRAMS, AND SOFTWARE FOR CONTROLLING AND RESPONDING TO THE BEHAVIOR OF ANIMALS, NAMELY FEEDING, WATERING, SORTING, MARKING,AND MATING ACTIVITIES, AND FOR COLLECTING AND REPORTING INFORMATION ABOUT SUCH ACTIVITIES TO THE CAREGIVER; AUTOMATED FEEDING STATIONS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS, ANTENNAE, OPERATING SOFTWARE, SENSORS, FEED DISPENSERS, AND FEED CONTAINERS; AUTOMATED ESTRUS DETECTION STATIONS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS,ANTENNAE, OPERATING SOFTWARE, AND SENSORS; AUTOMATED SORTING STATIONS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS, ANTENNAE,OPERATING SOFTWARE, SENSORS, AND SORTING GATES; AUTOMATED WATERING STATIONS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS, ANTENNAE,OPERATING SOFTWARE, SENSORS, WATER DISPENSERS, AND WATER CONTAINERS;AUTOMATED WEIGHING STATIONS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS, ANTENNAE, OPERATING SOFTWARE, SENSORS, AND SCALES; AND AUTOMATED MARKING STATIONS COMPOSED PRIMARILY OF ELECTRICAL CONTROLS, ANTENNAE, OPERATING SOFTWARE, SENSORS, AND MARKERS