Net protein contribution from an intensive Australian pork supply chain

Debate surrounding the adverse consequences of feeding human-edible feedstuffs to livestock can be addressed through calculation net protein contribution (NPC) production system. If NPC is greater than 1.0 for system, then there are benefits from system human populations with an ever-increasing requirement and amino acids. The aim this paper was calculate Australian pork supply chain on basis unique characteristics ingredients. While not complex, intimate knowledge source nutrients their quality, interpretation fractions essential if accurate estimate achieved. calculated using (a) actual, published or estimated values feedstuffs, (b) percentage available within raw materials considered edible, (c) recommended acid scoring patterns infants, adolescents adults, (d) published, standard reference nutrient databases, digestible indispensable scores, (e) carcase yields composition studies, (f) actual feed formulations, volumes data a large chain. assessed 3.26. This means generates more three times it consumes in process. higher previously values, largely because pig diets, but demonstrates positive value that systems make food supply. Livestock often targeted as consumers vital such acids diversion these diets. focus utilisation waste streams, co-products human-inedible they