The breeding of edible insects is still a matter of peripheral interest in the Czech Republic, though its gradual development can be expected. The rearing of a large number of living organisms is associated with the production of waste and greenhouse gases. In this experiment, the production of greenhouse gases was determined in the species Tenebrio molitor. Production of carbon dioxide, ethane and ethylene was measured. A gas chromatograph was used to measure the production of greenhouse gases. The measured values were converted into production in g.kg-1 of live weight and compared to the production of greenhouse gases in livestock animals. The results show that the difference in greenhouse gas production between Tenebrio molitor and livestock animals ranged between 0.822 and 26.548 g.kg-1 of live weight LW·h-1 for carbon dioxide, which are values as much as 1664.52 times higher. For other greenhouse gases, the difference ranged from 0.009 to 1.375 g CO2-eq.kg-1 LW.h-1, indicating that these values are as much as 3.82 times higher than in livestock animals.
