Skip to main content Accessibility help
×
Home

Urinary Excretion of Purine Derivatives in Fed and Fasted Yaks (Bos gruniens)

  • R. J. Long (a1) (a2), X. B. Chen (a2), S. K. Dong (a1), D. G. Zhang (a1), E. R. Ørskov (a2) and Z.Z. Hu (a1)...

Extract

Previous studies in sheep and cattle have demonstrated that the urinary excretion of purine derivatives (PD) provides an index of the intestinal flow of microbial protein (Chen et al. 1990). Yak is the most important ruminant species in Tibetan Plateau. It was of interest to establish whether the approach of PD excretion to estimate microbial protein supply is applicable in yaks. The objective of this work is to measure the effect of fasting and different levels of feeding on PD excretion in yaks.

The feeding experiments were carried out in Xi-ning, China at an altitude of 3100m and a latitude of 36.8° N. Six 5-year old female yaks were used and 3 experiments were completed.

Copyright

References

Hide All
Chen, X.B., Ørskov, E.R., Hovell, F.D. DeB. 1990. Excretion of purine derivatives by ruminants: endogenous excretion, difference between cattle and sheep. British Journal of Nutrition 63: 121129.
Chen, X.B. Samaraweera, L., Kyle, D.J., Ørskov, E.R. and Abeygunawardene, H. (1996). Urinary excretion of purine derivatives and tissue xanthine oxidase activity in buffaloes, with special reference to differences between buffaloes and Bos taurus cattle. British Journal of Nutrition 75: 397407.

Urinary Excretion of Purine Derivatives in Fed and Fasted Yaks (Bos gruniens)

  • R. J. Long (a1) (a2), X. B. Chen (a2), S. K. Dong (a1), D. G. Zhang (a1), E. R. Ørskov (a2) and Z.Z. Hu (a1)...

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed