As the logic of biomass from all of the plant based material is that it is fermented, I would like to propose that the same can be done with animal products, like all of the meats as well as rotten flesh, could be done in the same manner to produce biomass. It’s all still a biological material, and …

Meat yes, Seeds no. Go make Seed Oil and use that as Fuel. Rotten Meat to Biomass is added in Code for whatever I release next time.