Presentation made at: Young Professionals Conference: Innovative Ideas to Feed the World
Ms. Afton Halloran (FAO), Ms. Camelia Bucatariu (FAO)
Building resilient urban and peri-urban nutrient cycles for promoting food and nutrition security and mitigating climate change.
The idea focuses on increasing the efficiency of urban and peri-urban food systems for mass nutrient and dietary energy flows :
1. Recover municipal food waste9 to be used as safe feed for rearing insects10 e.g. Black soldier fly (BSF)11;
2. Harvest insect larvae/frass12 from the production system and process into animal feed for peri-urban poultry (broiler and eggs) and/or aquaculture (tilapia, trout and/or carp);
3. Use leftover residues after harvesting insect larvae/frass, poultry litter and aquaculture waste, directly or after composting, as a fertilizer for urban and peri-urban agriculture13 and/or use them for biogas production and use the residue from the biogas plant as fertilizer.
To produce high quality protein for human consumption by converting food waste into insect protein for use as poultry and aquaculture feed;
To enhance nutrient cycling.
World population is expected to rise to 9.3 billion by 2050;
Food production must increase by 60% over the next 40 years;
Population growth is becoming a largely urban phenomenon;
Consumption of animal products is likely to be 70% higher in 2050 than at present;
870 million people are chronically undernourished4 (including micronutrient deficiency).
FAO 2011 estimates yearly global quantitative food losses and waste to be: cereals (30%); root crops (40-50%); fruits and vegetables (40-50%); oilseeds (20%); meat and dairy (20%); and fish (30%).
Growing demand for protein is putting pressure on agricultural and food-feed systems. Global food-feed systems are resource-hungry and therefore demand resource efficiency. Business as usual could be catastrophic for their economic, environment and social sustainability; thus, leading to food insecurity, malnutrition and enhanced climatic changes.
Potential resources such as legally classified food waste are not always optimized or efficiently integrated into nutrient cycling. Resource efficiency settings must address malnutrition and unsustainable consumption concurrently; reducing food supply chain inefficiencies can help enhance food and nutrition security and mitigate climate change.
Rearing insects for feed is already practiced in some countries and is a concrete solution towards supplementing animal feed and indirectly providing safe and sustainable high quality protein for human consumption.
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