Determination of rumen microbial-nitrogen production in sheep: a comparison of urinary purine excretion with methods using 15N and purine bases as markers of microbial-nitrogen entering the duodenum.

@article{Perez1996DeterminationOR,
  title={Determination of rumen microbial-nitrogen production in sheep: a comparison of urinary purine excretion with methods using 15N and purine bases as markers of microbial-nitrogen entering the duodenum.},
  author={J L Firvida Perez and Joaqu{\'i}m Balcells and Jos{\'e} A Guada and C Castrillo},
  journal={The British journal of nutrition},
  year={1996},
  volume={75 5},
  pages={699-709}
}
The present study compares estimates of rumen microbial-N production derived from duodenal flow measurements (15N and purine bases) with those from measurements of the urinary excretion of purine derivatives. Four Rasa Aragonesa ewes fitted with simple cannulas in the rumen and proximal duodenum were used. Four diets consisting of 550 g lucerne (Medicago sativa) hay/d as sole feed or supplemented with 220, 400 and 550 g rolled barley grain/d were given in a 4 x 4 random factorial arrangement… CONTINUE READING

Citations

Publications citing this paper.
Showing 1-10 of 16 extracted citations

Similar Papers

Loading similar papers…