Gutiérrez, Lilia, Corazón de Jesus Mendoza, Zacnité Sánchez, Lizbeth Carrillo, and Héctor Sumano López. “Calcium-Carbonate and Phytoelements to Improve Egg Production in Backyard Laying Hens under Heat Stress”. Veterinaria México OA 11 (May 3, 2024). Accessed April 3, 2025. https://veterinariamexico.fmvz.unam.mx/index.php/vet/article/view/1253.