Where is the nutrition standard for pigs, or who has? thank you for providing.

Need an up-to-date feeding standard for pigs Excuse me, where can I download it? there is ~ ~ in the forum. There seems to be something wrong with the download area these days. -that's exactly what I need. Ladies and gentlemen, please provide more. It's a pity that I don't know how to upload information. Teach me how to upload it. I'll give it to you.