Nutritive value of elephant grass hay ammoniated by urea. Bioscience Journal [online], 2020. [online], vol. 36, no. 5, pp. 1498–1506. [Accessed13 December 2025]. DOI 10.14393/BJ-v36n5a2020-41135. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/41135.