By use of solar or wind energy ,
by using a suitable bedding material to reduce gases, heat, bad odor,
by using pro biotics, organic acids, enzymes to reduce gases and waste production by fecal material even mass of fecal material reduced,.
by using advanced feed formulas for besr fcr and less fecal output,
good housing practicing to control temperature, humidity, gases , heastress, so less heat dissipation to environment.
use of breeds with better heat resistance, more fcr.
giving more space to birds,
proper disposal of used litter and dead birds etc