Levels of physically effective neutral detergent fiber from forage and narasin inclusion: performance, carcass traits, meat quality, gastrointestinal fermentation, and rumen histology in feedlot lambs - Sardinha, Lairana Aline; Marques, Rodrigo S; Limede, Arnaldo Cintra; Soares, Letícia Carolina Bortolanza; Cidrini, Fernando A. A; Toledo, Ariany Faria de; Gasparina, Jennifer M; Assis, Rhaissa G. de; Goulart, Rodrigo Silva; Ferreira, Evandro Maia; Pires, Alexandre Vaz; Polizel, Daniel Montanher (Journal of Animal Science, 2025)