01717nam a2200265 a 450000100080000000500110000800800410001902400510006010000170011124501320012826001470026052008080040765000390121565000220125465000120127665000230128865000100131165000160132165000220133765000100135965000260136965300170139565300210141270000180143315330492025-02-05 1998 bl uuuu u00u1 u #d7 ahttps://doi.org/10.1017/S17527562005974402DOI1 aCHIKUNYA, S. aThe influence of supplementing rapidly degraded fibre with different forms of nitrogen on microbial protein synthesis in sheep. aIn: BRITISH SOCIETY OF ANIMAL SCIENCE, 1998, Scarborough, UK. Proceedings... Medlothian: British Society of Animal Science, 1998. p. 92.c1998 aThere is controversy in the literature concerning the effect of amino acid (AA) and peptide nitrogen on microbial activity in ruminants fed diets high in structural carbohydrates. Microbial protein is the most variable and uncertain element of current systems of evaluating protein requirements for ruminants (ARC, 1984). Some of the variability is attributed to the multiplicity of techniques for estimating microbial yield, some of which are both imprecise and cumbersome. This study investigates the effects of different forms of nitrogen on microbial activity in sheep fed a rapidly degraded fibrous basal diet and attempts to validate the recently developed purine derivative (PD) technique by comparing it to other procedures used to estimate microbial protein synthesis under the same conditions. aAmino acids, peptides and proteins aProtein synthesis aPurines aRuminant nutrition aSheep aNitrogênio aNutrição Animal aOvino aSíntese de Proteína aBiodigestão aSupelementação1 aMILLER, E. L.