2018/02/20 by Espagnol, Sandrine, Tailleur, Aurore, Dauguet, Sylvie +10
#0 #Aliments composés #Analyse du Cycle de Vie #Animal production #Compound feeds #Environmental impacts #Feedstuffs #Formulation #Impacts environnementaux #Life Cycle Assessment #Matières premières #Élevages
paper · doi:10.15454/1.5191166836420977e12
Feeding is central for the environmental aspects of animal production. For pig and poultry, feeds explain between 50 and 98% of the environmental impacts of animal product at farm gate. For cattle, the concentrated feeds account for 17% of the 12.3 million tons of compound feeds produced in the West of France. This study looked at the environmental benefit of eco-feeds which are feeds with lower environmental impacts. A database was built concerning the environmental impacts of 150 feedstuffs calculated by Life Cycle Assessment. Those data were used in a multiobjective function in order to formulate feed with environmental criteria and the usual cost criteria. The environmental benefits and the costs due to eco-feed were obtained for different feeding strategies of fattening pigs, broilers, dairy cows and young cattle at the scale of the ton of feed and the kilogram of animal product. An implementation at territory scale was also performed in the West of France by considering all the feeds and the animal productions: the results showed for instance a possible reduction of 7% for the impact climate change of the average ton of compound feed for an extra cost of 2%.