Dal Jang, Young, Merlin D Lindemann, Eric van Heugten, Richard D Jones, Beob Gyun Kim, Charles V Maxwell, and J Scott Radcliffe. 2014. “Effects of Phytase Supplementation on Reproductive Performance, Apparent Total Tract Digestibility of Ca and P and Bone Characteristics in Gestating and Lactating Sows”. Revista Colombiana De Ciencias Pecuarias 27 (3), 178-93. https://revistas.udea.edu.co/index.php/rccp/article/view/324891.