From what I heard, the pig lived a relativity good life. It was well cared for by the large animal veterinary school on campus. Had more space and better food than any factory raised pig. All experiments passed an ethics review. The pig was anesthetized before any procedure. The number of experiments may sound barbaric on the surface, but it was to reduce the overall number of pigs used in trials.
Modern medicine would not be possible without animal trials. Lab-on-a-chips may reduce the need in the future, but animals will still be required for device testing that needs an entire structure, not just a few cells. Different people may weigh the ethical dilemma differently, but when it's your loved dying due a heart defect I am willing to bet you will still choose a treatment tested on animals.
Modern medicine would not be possible without animal trials. Lab-on-a-chips may reduce the need in the future, but animals will still be required for device testing that needs an entire structure, not just a few cells. Different people may weigh the ethical dilemma differently, but when it's your loved dying due a heart defect I am willing to bet you will still choose a treatment tested on animals.