Thousands of horses killed during Melbourne cup

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Melbourne cup, the biggest annual horse race in Australia. I was quite surprised hearing about injured horses being killed after the Melbourne cup racing. (These injured horses are shot to the head from what i heard) Though this might not be a big thing for some as they don't see this any different from slaughtering cows for meat, some find this harsh as they would say that horses are like pets. With this, out of curiosity i asked what they do with the horse meat after slaughtering it and i thought that eating the meat would just be practical and a few people find it weird. But in reality, they would be using the horse meat as food for pets from what i heard. What do you think about this? Do you think having these horse meat on the table is weird?