The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage

The Journal of Agricultural Science

Volumn 92, Issue 2, 1979, Pages 499-503

  Orskov, E R ^a   Mcdonald, I ^a  

^a ROWETT RESEARCH INSTITUTE   (United Kingdom)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 33646320949     PISSN: 00218596     EISSN: 14695146     Source Type: Journal    
DOI: 10.1017/S0021859600063048     Document Type: Article

References (12)

1. Blaxter, K. L., Graham, N.M.C. & Wainman, P. W. (1966). Some observations on the digestibility of food by sheep and on related problems. British Journal of Nutrition 10, 69-91.
2. Burroughs, W., Trenkle, A. & Vetteb, R. L. (1974). A system of protein evaluation for cattle and sheep involving metabolizable protein (amino acids) and urea fermentation potential of feedstuffs. Veterinary Medicine. Small Animal Clinician 69, 713-722.
3. Ganev, G., Orskov, E. R. & Smart, R. (1979). Effect of type of substrate and retention time on rate and extent of degradation of protein supplements in the rumen. (Submitted.)
4. Mehrez, A. Z. & ORSKOV, E. R. (1977). A study of the artificial fibre bag technique for determining the digestibility of feeds in the rumen. Journal of Agricultural Science, Cambridge 88, 645-650.
5. Mehrez, A. Z. & Orskov, E. R. (1978). Protein degradation and optimum urea concentration in cereal-based diets for sheep. British Journal of Nutrition 40, 337-345.
6. Miller, E. L. (1973). Evaluation of foods as sources of nitrogen and amino acids. Proceedings of the Nutrition Society 32, 79-84.
7. Orskov, E. R. (1970). Nitrogen utilization by the young ruminants. Proceedings of the Fourth Nutrition Conference, Nottingham, pp. 20-35.
8. ORSKOV, E. R. (1974). Factors influencing protein and nonprotein nitrogen utilization in young ruminants. In Protein Metabolism and Nutrition (ed. S. Taminga), pp. 457-476. Wageningen, The Netherlands: Centre for Agricultural Publishing.
9. Orskov, E. R. (1977). Dietary protein:energy relationships for growth in young ruminants. In Protein Metabolism and Nutrition (ed. S. Taminga, pp. 110-114. Wageningen, The Netherlands: Centre for Agricultural Publishing.
10. Orskov, E. R. & Mehrez, A. Z. (1977). Estimation of extent of protein degradation from basal feeds in the rumen of sheep. Proceedings of the Nutrition Society 36, 78 A.
11. Roy, J. H. B., Balch, C.C., Miller, E. L., Orskov, E. R. & Smith, R. H. (1977). Calculation of the N-requirements for ruminants from nitrogen metabolism studies. In Protein Metabolism and Nutrition (ed. S. Taminga, pp. 126-129. Wageningen, The Netherlands: Centre for Agricultural Publishing.
12. Uden, P., Colucoi, P. E. & Van Soest, P. J. (1978). Investigation of chromium, cerium and cobalt as markers in digesta rate of passage studies. Journal of the Science of Food and Agriculture. (In the Press.)