ISSUE FOCUS 50 FEED & ADDITIVE MAGAZINE March 2025 cifically targeting the environmental health, eco-efficiency clearly follows similar principles as feed efficiency, i.e. to consume as little feed as possible, in order to produce as much animal proteins as possible. As agriculture is regularly seen as a major contributor to greenhouse gas (GHG) emissions, it is vital that the stakeholders invest in a more sustainable livestock production, next to a profitable one. Amongst the GHG, carbon dioxide (CO2) is often depicted as a main cause of climate change, proving the importance of reducing its emissions. Orffa developed specific feed solutions to minimize the release of CO2. For example, Excential Energy Plus has proven benefits to reduce global warming potential, as well as terrestrial acidification potential, freshwater eutrophication and land use, while having a negligible production impact (Figure 3). Moreover, the supplementation of individual, essential amino acids (AA) is decisive to limit environmental impact. First of all, supplementing individual AA enables to solve specific deficiencies with a balanced diet contrary to vegetal protein sources, following the precision nutrition concept. As a result, the protein supplementation is selective with controlled feed production costs, reaching an enhanced feed efficiency. On top of that, they allow low protein diets preventing an excessive nitrogen excretion, in the form of ammonia or urea for example. Figure 3. Life cycle assessment of Excential Energy Plus in poultry.
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