Some alternatives to mitigate heat stress in animals: arginine and methionine as antioxidants

  • Reyna L. Camacho Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
  • Ernesto Avelar Lozano Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
  • Adriana Morales Trejo Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
  • B. Pérez Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
  • V. Sánchez Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
  • Nestor Arce-Vazquez Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
  • Miguel Cervantes Ramirez Instituto de Ciencias Agrícolas, Universidad Autónoma de Baja California
Keywords: heat stress, antioxidant enzymes, intestinal epithelium


Exposure of animals to ambient temperature above the thermo neutral zone caused heat stress. Alterations in digestion and absorption of nutrients as well as damage to the small intestine epithelia associated with the production of reactive oxygen species (ROS) may occur in heat stress pigs, resulting in depressed performance. The cells possess an antioxidant system capable of protecting the animals against the effect of heat stress. However, when ambient temperature increases beyond the thermo neutral zone, ROS production also increases provoking an imbalance between ROS and antioxidant production. This review provides relevant information related to the alterations that occur at intestinal, cellular and molecular level in animals exposed to heat stress, and the effect that methionine and arginine as antioxidant amino acids, and their use in diets for heat stress pigs.


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How to Cite
Camacho, Reyna L., Ernesto Avelar Lozano, Adriana Morales Trejo, B. Pérez, V. Sánchez, Nestor Arce-Vazquez, and Miguel Cervantes Ramirez. 2022. “Some Alternatives to Mitigate Heat Stress in Animals: Arginine and Methionine As Antioxidants”. Archivos Latinoamericanos De Producción Animal 30 (Supl. 1), 103-17.