Other integrated models have also been developed and applied.
The most discussed are livestock farm/fish pond , crop/
livestock farm/fish pond as well as the crop/
livestock farm/mushroom/earthworm model, the crop/livestock
farm/biogas digester/mushroom model, and the crop/livestock farm/fly/fish pond model developed a low-emission eco-model in which the waste
from a livestock farm and food garbage are used for biogas production