Comparative evaluation of methods for ammonia (NH3) determination in rumen fermentation of legume and concentrate samplesAnnisa Rosmalia, Karima Jastika Ahmad, Idat Galih Permana, Despal and Cahyo BudimanBIO Web Conf., 234 (2026) 01003DOI: https://doi.org/10.1051/bioconf/202623401003