Castillo Rodríguez, CristinaHernández Bermúdez, Joaquín2023-03-132023-03-132023Research in Veterinary Science 155 (2023). https://doi.org/10.1016/j.rvsc.2023.01.0120034-5288http://hdl.handle.net/10347/30302Global population growth will lead to an increase in demand for animal-based foods, such as meat and milk from ruminants, which will require restructuring some of the components of the ration (Castillo et al., 2017; Van Huis, 2020). This need is controversial for several reasons: 1) contribution to the depletion of environmental resources; 2) competition of protein sources with human food or fuel increasing prices for farmers, minimising farm profitabilityeng© 2023 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/)Attribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/RuminantsInsectsNutritionCircular economyjournal article10.1016/j.rvsc.2023.01.012open access