Pérez-Gálvez, A., J. J. Negro-Balmaseda, M. I. Mínguez-Mosquera, M. V. Cascajo-Almenara, and J. Garrido-Fernández. “Astaxanthin from Crayfish (Procambarus Clarkii) As a Pigmentary Ingredient in the Feed of Laying Hens”. Grasas y Aceites 59, no. 2 (June 30, 2008): 139–145. Accessed April 26, 2024. https://grasasyaceites.revistas.csic.es/index.php/grasasyaceites/article/view/502.