. 2000. The feeding value of grain screenings for ruminants: Chemical composition and nutrient utilization. Can. J. Anim. Sci. 80: 673-680. The objectives of this study were to determine the chemical and nutrient utilization characteristics of grain screening pellets (GSP) for ruminants. One ruminally fistulated cow was used to determine ruminal nutrient degradability characteristics of GSP relative to barley grain. Twentyone growing lambs were used to determine voluntary intake and total tract nutrient digestibility coefficients for GSP relative to regular and thin barley. Seven diets were formulated with different levels of GSP, and thin or regular barley at ratios of 100:0; 75:25; 50:50; 25:75. On a dry matter (DM) basis, GSP contained 337 ± 17.4 g kg -1 neutral detergent fiber (NDF), 209 ± 21.1 g kg -1 acid detergent fiber (ADF), 151 ± 11.1 g kg -1 crude protein (CP), and 262 ± 61.5 g kg -1 starch. Ruminal degradability of DM and NDF of GSP was lower (P < 0.05) while that for CP was higher (P < 0.05) than barley grain. Effective ruminal degradability of starch for GSP and barley exceeded 900 g kg -1 . Results of the sheep trial showed that as the level of GSP increased, voluntary intake increased (P < 0.05) and total tract digestibility coefficients of DM, NDF, and gross energy (GE) decreased (P < 0.05). The digestibility coefficients of DM, NDF, and GE for GSP were 666 g kg -1 , 294 g kg -1 , and 698 J kJ -1 , respectively. The digestible energy (DE) content of GSP (13.8 MJ kg -1 ) was similar to that of thin barley and 11% lower (P < 0.5) than that of regular barley. It was concluded that while GSP exhibited reduced ruminal and total tract nutrient utilization relative to regular barley, this feed product is a good source of energy and protein for growing ruminants. La dégradabilité ruminale réelle de l'amidon des deux ingrédients dépassait 900 g kg -1 . Les essais conduits sur les moutons révèlent qu'à mesure qu'on augmente la proportion d'a.c.c., la prise alimentaire libre s'accroît (P < 0,05), tandis que les coefficients de digestibilité globale de m.s., FDN et EB (énergie brute) diminuent (P < 0,05). Les coefficients de digestibilité de m.s., FDN et EB étaient, dans l'ordre, de 666 g kg -1 , 294 g kg -1 et 698 J kJ -1 . Le contenu en ED des a.c.c. (13,8 MJ kg -1 ) était du même ordre que celui de l'orge maigre et 11 % plus bas (P < 0,05) que celui de l'orge du commerce. Il découle de ces observations que, malgré une digestibilité ruminale globale moindre que celle de l'orge standard, les a.c.c constituent une bonne source d'énergie et de protéine pour les ruminants en croissance.