The food industry grows animals for meat, but some parts cannot be sold.

What is the final use of bones from the different animals grown industrially? pigs, beef, poultry.

  • Some is processed into fertilizer ( primarily phosphorus ). – blacksmith37 Dec 19 '18 at 22:22
  • Ever wondered what gelatin is made of? Right, bones (and skin). – Erik Dec 20 '18 at 13:08
  • Blood & bone fertilizer. – Fred Jan 6 '19 at 2:25

Lots of it is ground up and used as animal feed. for the same animals...

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