Feeding Reduced Crude Protein, Amino Acid Balanced Diets to Laying Hens has Economic Benefits Beyond Reducing Feed Costs

Based on the results of your study I would interpret the "benefits" in the title as improving the sustainable production. In addition to economical benefits, reduction in the excretion of nitrogen etc. would be considered as environmental benefits (reduction in environmental footprint of production). Furthermore, reducing the dietary protein would alleviate metabolic pressure on animal as can be confirmed by the reduction in nitrogen excretion. Therefore, it fits all three pillars of sustainability perfectly! The sustainability pillars can be considered as three P (people, profit, and planet). Here reduction in metabolic pressor and stress on animal would address People's concern about animal right; maximizing revenue would be as Profit; and reduction in environmental footprint of production would address Planet concerns.

Yes

Reducing Crude Protein diets is an interesting topic, but one that is not practical in all production or situations and is highly influenced by the individual ingredients one has to work with and that is not discussed enough. For example: Most research in that area is done with Corn/soybean meal diets. What happens when it's wheat/ Soybean meal? It can still be done then with small or no performance losses if the wheat is lower in crude protein value (107 g/kg) but what if one only has Higher Crude Protein wheat (190 g/kg) to work with versus lower crude protein wheat (107 g/kg) ? Reducing protein level then will hurt performance and economics. Lower performance will mean more feed used to produce the same amount, so is it then good for the environmental footprint to reduce protein in the diets? But it is an interesting topic none the less. Thank-you for sharing.