What are the methods for adjusting the feed amount for meat-type breeding chickens

On the premise that the feed nutrition is complete and balanced, adjust the next week's feed amount according to the average body weight of the flock last week, the number of chickens, the reference feeding amount, and the magnitude and trend of body weight gain. The adjustment range should be small and the speed should be slow, to ensure relatively stable weight gain and prevent fluctuation. For chickens that exceed the standard body weight, the next week's feed amount must not be reduced; you may continue the previous week's feed amount or reduce the next week's feed increase. For chickens below the standard body weight, appropriately increase the weekly feed increment, but each increase must not be too large; you may add 1 to 2 grams per bird on the basis of the original weekly feed increment.