LIFE CYCLE ASSESSMENT OF POINT-OF-LAY BIRDS TO FROZEN CHICKEN PRODUCTION IN A TROPICAL ENVIRONMENT
TEMITAYO A. EWEMOJE 1*, OLUFEMI P. ABIMBOLA 1, OLAYINKA A. OMOTOSHO 2 1. Department of Agricultural & Environmental Engineering Department, Faculty of Technology, University of Ibadan, Ibadan
2. Agricultural & Environmental Engineering Unit, Institute of Agricultural Research & Training, Obafemi Awolowo University, Moor Plantation, Ibadan, Oyo State, Nigeria
*Corresponding author, email: tayo_ewemoje@yahoo.co.uk
The study examined four scenarios for reduction of environmental impacts with use of 100 % purchased electricity in all processing activities as first scenario while second scenario was the use of 100 % electricity from diesel generators. Third and fourth scenarios were to use 50 % each of both purchased electricity and diesel-generated electricity in all activities. Most of the Energy Use (EU) came during the freezing process. Global Warming Potential (GWP) value for Scenario 2 is predominantly higher than the values for other three scenarios. The results show that the major source for global warming potential for Scenario 2 is the freezing process, whereas for the other three scenarios the animal management represents the main contributor. Similar to GWP, the Acidification Potential and Eutrophication Potential values for Scenario 2 were higher, although very small and this may be attributed to diesel generators emitting slightly higher amounts of NOx and SOx.
