What are the key points of fish feeding techniques? Asking everyone

The quality of the feeding method affects the feed conversion ratio and the level of farming costs, and a good feeding method can also reduce the occurrence of disease. Could any friend talk about the issues that should be paid attention to during the feeding process, such as judging the feed amount and so on? If any friend has materials on this, could you send them to me so I can study them? My email is: [email protected]. Thanks in advance
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Feed amount: according to the weather and the weight of the fish you stocked! Anyway, it is better to feed slowly, not fast!