Life cycle analysis of raw milk production in Tunisia

Amira Ghazouani , Naceur M'hamdi , Ibrahim-El-Akram Znaidi , Cyrine Darej , Norchene Guoiaa , Maroua Hasnaoui , Rachid Bouraoui and Hajer M'hamdi

Abstract
Life Cycle Assessment (LCA) is a tool to calculate greenhouse gas (GHG) emissions of dairy production. A survey was conducted in 20 dairy farms at the governorate of Sousse. The present study aimed to evaluate environmental impact of milk production at the farm regarding GHG emission and energy consumption. In the 20 dairy farms total GHG emissions resulted in a mean of 0.63 + 0.2 kg CH₄/kg ECM and forage can contribute with a means 0.35 Le kg CO2eq/DM. The main reductions in GHG emissions per kg of FPCM started from 2,347 kg per cow per year and then the reduction slowed down to stabilize at around 6,127 kg FPCM per cow per year.

Keywords
Life cycle analysis; Mitigation; Carbon footprint; Milk corrected.

DOI
10.21472/bjbs.051005

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