1. The Nutrient Requirements of Ruminant Livestock;Agricultural Research Council (ARC),1980
2. Effects of supplementing maize and grass silages with barley, and maize silage with urea or ammonia, on intake and performance of fattening bulls;Aston;Anim. Prod.,1980
3. Characterisation of forages: appraisal of current practice and future opportunities;Beever,1993
4. Energy Metabolism of Farm Animals;Beever,1989
5. Nutrition balance techniques and their limitations: techniques in energy metabolism studies and their limitations;Blaxter,1967