Rojas V, Callacna M, Arnaiz V. Use of an additive canthaxanthin based and annatto extract in diets of laying hens and its effect on the color of the yolk and the egg shelf life. Sci. agropecu [Internet]. 2015 Sep. 1 [cited 2026 Oct. 27];6(3):191-9. Available from: https://revistas.unitru.edu.pe/index.php/scientiaagrop/article/view/957