“…Utilizing meat by-products in meal reduces costs in the production of feed rations and consequently in animal production, by providing treatment and utilization of animal slaughter residues which reduces waste and recycles energy, amino acids and minerals from animal by-products (Carvalho et al, 2012;Silva et al, 2018;Okanović et al, 2009;Staroń et al, 2017). Brazilian breeding companies routinely use animal meal in feed for non-ruminants, poultry (Ebling et al, 2013;Sari et al, 2016;Thyagarajan et al, 2013), and dogs as a source of protein (Loureiro et al, 2017;Meeker & Meisinger, 2015), macronutrients such as phosphorus, potassium, magnesium, and micronutrients such as iron, copper, zinc and manganese (Staroń et al, 2017). This is a lower cost alternative since these non-edible by-products can be an alternative to sustainable products for agriculture and industry.…”