Caro-Costas R, Vicente-Chandler J, Abruña F. Effect of Four Levels of Concentrate Feeding on Milk Production by Holstein Cows Grazing Intensively Managed Tropical Grass Pastures. JAUPR [Internet]. 1972 Apr. 1 [cited 2024 Nov. 22];56(2):97-103. Available from: https://revistas.upr.edu/index.php/jaupr/article/view/10853