Preliminary studies on urinary excretion of purine derivatives and creatinine in yaks

Journal of Agricultural Science

Volumn 133, Issue 4, 1999, Pages 427-431

  Long, R J ^a,b   Dong, S K ^a   Chen, X B ^b   Orskov E R ^b   Hu, Z Z ^a  

^a GANSU AGRICULTURAL UNIVERSITY   (China)

^b ROWETT RESEARCH INSTITUTE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0033494665     PISSN: 00218596     EISSN: None     Source Type: Journal    
DOI: 10.1017/S0021859699007169     Document Type: Article

References (22)

1. AGRICULTURAL RESEARCH COUNCIL (1984). The Nutrient Requirements of Ruminant Livestock. Supplement no. 1. Slough: Commonwealth Agricultural Bureaux.
2. ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS (1965). Official Methods of Analysis of the Association of Official Analytical Chemists, 10th edn, pp 327-328. Washington, DC: AOAC.
3. BALCELLS, J., GUADA, J. A., CASTRILLO, C. & GASA, J. (1991). Urinary excretion of allantoin and allantoin precursors by sheep after different rate of purine infusion into the duodenum. Journal of Agricultural Science, Cambridge 116, 309-317.
4. CHEN, X. B., ØRSKOV, E. R. & HOVELL, F. D. DEB. (1990a). Excretion of purine derivatives by ruminants: endogenous excretion, difference between cattle and sheep. British Journal of Nutrition 63, 121-129.
5. CHEN, X. B., MATHIESON, J., HOVELL, F. D. DEB. & REEDS, P. J. (1990b). Measurement of purine derivatives in urine of ruminants using automated methods. Journal of the Science of Food and Agriculture 53, 23-33.
6. CHEN, X. B., GRUBIC, G., ØRSKOV, E. R. & OSUJI, P. (1992). Effect of feeding frequency on diurnal variation in plasma and urinary purine derivatives in steers. Animal Production 55, 185-191.
7. CHEN, X. B., KYLE, D J.& ØRSKOV, E. R. (1993). Measurement of allantoin in urine and plasma by high-performance liquid chromatography with pre-column derivatization. Journal of Chromatography 617, 241-247.
8. CHEN, X. B., SAMARAWEERA, L., KYLE, D. J. & ØRSKOV, E. R. (1996). Urinary excretion of purine derivatives and tissue xanthine oxidase (EC 1. 2. 3. 2) activity in buffaloes (Bubalis bubalis) with special reference to differences between buffaloes and Bos taurus cattle. British Journal of Nutrition 75, 397-407.
9. DANIELS, Z. M. (1993). Purine derivatives in urine and plasma of lactating cows given different levels of feed intake. MSc Thesis, Aberdeen University.
10. DAVIDSON, J., MATHIESON, J. & BOYNE, A. W. (1970). The use of automation in determining nitrogen by the Kjeldahl method with final calculation by computer. Analyst 95, 181.
11. FIEMS, L. Q., COTTYN, B. G., BOUCQUE, C. V., BOGAERTS, D. F., VANEENAEME, C. & VANACKER, J. M. (1997). Effect of beef type, body weight and dietary protein content on voluntary feed intake, digestibility, blood and urine metabolites and nitrogen retention. Journal of Animal Physiology and Animal Nutrition 77, 1-9.
12. GIESECKE, D., BALSLIEMKE, J., SUDERUM, K. H. & STANGASSINGER, M. (1993). Plasma level, clearance and renal excretion of endogenous and ruminai purines in the bovine. Journal of Animal Physiology and Animal Nutrition 70, 180-189.
13. HAN, D. K., SHIN, H. T. & LANDIS, J. (1992). Effect of level of feed intake on the excretion of purine derivative and purine derivatives to creatinine ratio in the urine of sheep. Asian-Australasian Journal of Animal Science 5, 465-468.
14. LARSEN, K. (1972). Creatinine assay by reaction-kinetic principle. Clinica Chimica Acta 41, 209-217.
15. LAWES AGRICULTURAL TRUST (1983). Genstat 4 User Manual. Harpenden: Rothamsted Experimental Station.
16. LINDBERG, J. E. & JACOBSSON, K. G. (1990). Nitrogen and purine metabolism at varying energy and protein supplies in sheep sustained on intragastric infusion. British Journal of Nutrition 64, 359-370.
17. LONG, R. J. (1994). Milk performance of yak cow under traditional feeding and management on small Tibetan farms. Acta Prataculture Sinica 1, 71-76.
18. LONG, R. J. & MA, Y. S. (1997). Qinghai's yak production systems. In Proceedings of a Workshop on Conservation and Management of Yak Genetic Diversity (Eds D. J. Miller, S. R. Craig & G. M. Rana), pp. 105-114. Kathmandu, Nepal: International Centre for Integrated Mountain Development (ICIMOD).
19. LONG, R. J., ZHANG, D. G., WANG, X., HU, Z. Z. & DONG, S. K. (1999a). The effects of strategy feed supplementation on productive and reproductive performances in yak cows. Preventive Veterinary Medicine. 38, 195-206.
20. LONG, R. J., APORI, S. O., CASTRO, F. B. & ØRSKOV, E. R. (1999b). Feed value of native forages of the Tibetan Plateau of China. Animal Feed Science and Technology 80, 101-113.
21. SAMARAWEERA, L., ØRSKOV, E. R. & CHEN, X. B. (1994). Preliminary studies on purine derivative excretion in buffaloes. In Proceedings of the first Asian Buffalo Association Congress, pp. 244-248. Thailand: Khon Kaen University.
22. VERBIC, J., CHEN, X. B., MACLEOD, N. A. & ØRSKOV, E. R. (1990). Excretion of purine derivatives by ruminants: effect of microbial nucleic acid infusion on purine derivative excretion by steers. Journal of Agricultural Science, Cambridge 114, 243-248.