1. ARC, 1984. The Nutrient Requirement of Ruminant Livestock, Suppl. 1. CAB, Slough, London.
2. Simultaneous determination of allantoin and oxypurines in biological fluids by high-performance liquid chromatography;Balcells;J. Chromatogr.,1992
3. Purine metabolite concentrations in portal and peripheral blood of steers, sheep and rats, sheep and rats;Balcells;Comp. Biochem. Physiol.,1992
4. The effect of specific growth rate and stage of growth on nucleic acid–protein values of pure cultures and mixed ruminal bacteria;Bates;J. Anim. Sci.,1985
5. Excretion of purine derivatives in urine of Belgian Blue bull following duodenal infusion of purines from Torula yeast;Beckers;Proc. Soc. Nutr. Physiol.,1994