How many days does it take for a fattening pig to grow from 15kg to 55kg?

I would like to consult the master teachers.! I'm a doctor, depending on how you feed, fast when you're full, slow when you're not full, and whether the feed is good or bad. -about 60 days.-about 60 days.-it won't take that long. We are fed full-price granules. It will take about a month and a half. -if all goes well, it goes well. 60 days or so.-55 days or so. -got it. Thank you! -if the feed is good enough, 45 cents, 50 days is enough.-usually 2 months.-the test in my field is 50 days. Can you tell me about the 50-day feed formula, sir?