biostudies-literatureHorrillo AINIA-AEI (Instituto Nacional de Investigaciones Agrarias y Alimentarias-Agencia Estatal de Investigación) and the European Regional Development FundsJunta de Extremadura and FEDER Funds506https://www.ebi.ac.uk/biostudies/studies/S-EPMC9913101biostudies-literatureUnknown13(3)The current Quality Standard regulating the Iberian pig provides for various differentiated farming systems subject to the type of management implemented and the breed of the pigs. This study attempts to analyse the differences between two of these production systems, i.e., the outdoor and the indoor rearing systems by comparing the main technical and economic factors of six farms, three operating under each system, in order to ascertain the most profitable production system. This analysis is based on the information provided by the farm owners. It also evaluates the impact that the COVID-19 pandemic outbreak had on profitability. The results show that both systems spend the same resources on animal feed, which represents nearly 60% of the expense, with the price of purchase of piglets repAnimals : an open access journal from MDPIFattening Iberian Pigs Indoors vs. Outdoors: Production Performance and Market Value.PMC9913101RTA2015-00002-C04-03Grant GR21125Gonzalez EMunoz AEscribano MGaspar PHorrillo AfalseFattening Iberian Pigs Indoors vs. Outdoors: Production Performance and Market Value.The current Quality Standard regulating the Iberian pig provides for various differentiated farming systems subject to the type of management implemented and the breed of the pigs. This study attempts to analyse the differences between two of these production systems, i.e., the outdoor and the indoor rearing systems by comparing the main technical and economic factors of six farms, three operating under each system, in order to ascertain the most profitable production system. This analysis is based on the information provided by the farm owners. It also evaluates the impact that the COVID-19 pandemic outbreak had on profitability. The results show that both systems spend the same resources on animal feed, which represents nearly 60% of the expense, with the price of purchase of piglets rep2023-01-01T00:00:00Z2023 Jan2025-05-29T22:23:41.434Z2025-04-19T19:38:49.675ZS-EPMC99131013676639510.3390/ani13030506