Analysis of energy usage on laying hen rearing units in Iran

Energy of inputs is a necessityof life for human beings all over the world due to its function instrengthening the security and contentment of the people. This study was focused on economics of energy onlaying hen rearing units in Iran. The data of this study obtainedfrom a sample of 354 farms that were taken from an industrial farm censusconducted by the Statistical Center of Iran in 2016. Investigation of energy efficiency in the layinghen rearing industry indicated that index of energy productivity in the firstgroup (the provinces of East Azarbaijan, West Azarbaijan and Hamadan) and thesecond group (the provinces of Tehran, Qom and Markazi) are 47 and 48 kg/MJ and specific energy ratios for these two groups were 40.74 and 29.96 MJ,respectively. Result of this study showed that energy efficiency was low and energy perishes was high in this industry. Therefore, modern and wellestablished scientific practices can be used to improve energy efficiencyand reduce energy losses.