In situ intestinal digestibility of dry matter and crude protein of cereal grains and rapeseed in sheep Javier González, Jesús Faría-Mármol, Bárbara Matesanz, Carlos Alberto Rodríguez and María Remedios AlvirReprod. Nutr. Dev., 43 1 (2003) 29-40DOI: https://doi.org/10.1051/rnd:2003004