Sawdust is a kind of biomass, can it be used as chicken feed?

Sawdust can be fed to livestock and poultry through fermentation, which can increase the weight and increase the output. Sawdust fermentation method is: sawdust 70 kg, rice bran or wheat bran 30 kg, water 60 kg, fermented dough 0.2 kg, salt 0.2 kg, mix the above animal feed naking raw materials evenly, pile and compact, and ferment for 1 to 2 days. After fermentation, when the raw materials are loose and have wine, sweet and alkaline taste, they can be fed to livestock and poultry. Generally, the feeding amount of laying hens accounts for 20% of the diet during the rearing period and 25% during the laying period; pigs can account for 20% to 30% of the diet.