Resumen de Effectiveness of feed restriction to improve feed efficiency in finishing pigs
José A. Martínez Aispuro, J. Luis Figueroa Velasco, Sánchez Torres María T., José L. Cordero Mora, Manuel Martínez-Aispuro
There are different feeding plans (ad libitum, restricted or a combination of both) that are implemented with the aim of increasing or decreasing the growth rate, age and live weight (LW) at slaughter, or manipulating meat quality (Carco et al., 2018 a,b; Schiavon et al., 2018; Poullet et al., 2019).Under free access feeding conditions, pigs are encouraged to maximize feed consumption, which can decrease the digestibility of nutrients (Njoku et al., 2015a) and the feed efficiency (Dalla Bona et al., 2016; Njoku et al., 2018; Schiavon et al., 2018). Feed restriction (FR) consists in offering the animals a regulated amount of feed, normally lower than what the pigs are capable of ingesting voluntarily (Brustolini et al., 2019). Depending on the percentage of FR, it is possible to improve the feed efficiency and the meat quality, since severe FR can drastically affect the growth rate and the fat content in the meat (Njoku et al., 2013; Kim et al., 2014; Dalla Bona et al., 2016; Carco et al., 2018ab).
