1.
Ruiz TM, Cancel-Medina E. Performance of Holstein cows fed two levels of concentrate supplementation and ruminally undegraded protein. JAUPR [Internet]. 2006 Apr. 1 [cited 2024 Dec. 22];90(1-2):9-26. Available from: https://revistas.upr.edu/index.php/jaupr/article/view/2958