1. Diurnal variations of free amino acids and ammonia levels in the blood of sheep given urea.;Barej;Z. Tierphysiol., Tierernährg. u. Futtermittelkde.,1973
2. Influence of ammonia on glucose metabolism in sheep loaded with insulin or glucagon.;Barej;Acta Physiol. Pol.,1974
3. The cerebral and peripheral uptake of ammonia in liver disease with an hypothesis for the mechanism of hepatic coma.;Bessman;J. Clin. Invest.,1955
4. Effect of sympathomimetic amines upon amino acid nitrogen content of blood.;Brunish;Proc. Soc. Exp. Biol. Med.,1952
5. Blood glucose, VFA and NEFA in sheep dosed with urea and carbohydrate (Abstr.).;Chalupa;J. Anim. Sci.,1969