“…Among other alternatives to counteract parasitism in livestock, there is immunonutrition, which refers to the use of nutritional strategies based on dietary supplementation based on protein or energy feedstuffs to improve host immune responses to parasite infections [ 71 ]. Such supplementation induces lambs naturally infected with GIN to acquire resistance and resilience [ 72 ], facilitates the selection of animals that have developed genetic resistance against GIPN [ 73 , 74 ], enables the identification of resilient animals through targeted selective deworming such as the FAMACHA ® technique and the body score [ 75 , 76 ]. Other strategies include the use of a grazing management system that originally was designed to maximize the use of the main forage resource, and this technology was used to reduce the exposure time of animals to large numbers of GIN-infective larvae in grazing lands [ 3 , 77 ].…”