Hostname: page-component-cd9895bd7-dzt6s Total loading time: 0 Render date: 2024-12-25T05:15:23.304Z Has data issue: false hasContentIssue false
  • English
  • Français

Influences of diet and body condition on the nitrogen utilization in the cow

Published online by Cambridge University Press:  27 March 2009

R. Paquay ,
R. De Baere  and
A. Lousse
R. Paquay
Affiliation:
Department of Animal Physiology, Faculty of Veterinary Medicine, Cureghem, 1070-Brussels, Belgium
R. De Baere
Affiliation:
Department of Animal Physiology, Faculty of Veterinary Medicine, Cureghem, 1070-Brussels, Belgium
A. Lousse
Affiliation:
Department of Animal Physiology, Faculty of Veterinary Medicine, Cureghem, 1070-Brussels, Belgium
Get access Rights & Permissions [Opens in a new window]

Summary

The dietary and individual factors influencing the utilization of digestible nitrogen in the dry cow were studied with numerous rations fed to Friesian cows kept in metabolism stalls.

Urinary nitrogen excretion and nitrogen balance were above all influenced by the level of digestible nitrogen intake. They are also correlated to metabolizable energy and digestible potassium intakes.

Endogenous urinary nitrogen, estimated by extrapolation, was 30·6 mg N/kg body weight/d or 0·169 W0·73 g/d with the rations meeting approximately the energy maintenance requirements of the cow.

The changes in diet accounted for 80% of the variability of nitrogen balance.

A method was worked out for calculating the body condition of the cow from the live-weight variations.

The changes in body condition accounted for 11% of the variability of nitrogen balance.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 79 , Issue 2 , October 1972 , pp. 323 - 329
Copyright
Copyright © Cambridge University Press 1972

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Allison, J. B. & Wannemacher, R. W. (1965). The concept and significance of labile and over-all protein reserves of the body. Am. J. Clin. Nutr. 16, 445–52.Google Scholar
A.R.C. (1965). The Nutrient Requirements of Farm Livestock, no. 2. Ruminants. London: Agricultural Research Council.Google Scholar
Bath, D. L., Ronning, M., Lofgreen, G. P. & Meyer, J. H. (1966). Influence of variations in ruminal contents upon estimates of body weight change of dairy cattle during restricted feeding. J. Dairy Sci. 49, 830–4.CrossRefGoogle ScholarPubMed
Carnegie, A. B., Tulloh, N. M. & Seebeck, R. M. (1969). Developmental growth and body weight loss of cattle. V. Changes in the alimentary tract. Aust. J. agric. Res. 20, 405–15.CrossRefGoogle Scholar
Elliott, R. C. & Topps, J. H. (1964). Studies of protein requirements of ruminants. 3. Nitrogen balance trials on Blackhead Persian sheep given diets of different energy and protein content. Br. J. Nutr. 18, 245–52.CrossRefGoogle ScholarPubMed
Kay, M., Macdearmid, A. & MacLeod, M. A. (1970). Intensive beef production. 10. Replacement of cereals with chopped straw. Anim. Prod. 12, 261–6.Google Scholar
Kirton, A. H., Quartermain, A. R., Ultjee, A. E., Carter, W. A. & Pickering, F. S. (1968). Effect of 1 and 2 days ante-mortem fasting on liveweight and carcass losses in lambs. N.Z. Jl agric. Res. 11, 891–902.CrossRefGoogle Scholar
Klosterman, E. W., Sanford, L. G. & Parker, C. F. (1968). Effect of cow size and condition and ration protein content upon maintenance requirements of mature beef cows. J. Dairy Sci. 27, 242–6.Google Scholar
Lousse, A. (1959). Contribution expérimentale à l'établissment des bases physiologiques du rationnement azoté des bovins. C. r. Rech. Inst. Encour. Rech. Scient. Ind. Agric. no. 21, 1959.Google Scholar
Orskov, E. R. & Fraser, C. (1969). The effect on nitrogen retention in lambs of feeding protein supplements direct to the abomasum. Comparison of liquid and dry feeding and of various sources of protein. J. agric. Sci., Camb. 73, 469–75.CrossRefGoogle Scholar
Paquay, B., Lomba, F., Lousse, A. & Bienfet, V. (1969). Statistical research on the fate of dietary mineral elements in dry and lactating cows. V. Potassium. J. agric. Sci., Camb. 73, 445–52.CrossRefGoogle Scholar
Paquay, R., De Baere, R. & Lousse, A. (1970). Statistical research on the fate of water in the adult cow. I. Dry cows. J. agric. Sci., Camb. 74, 423–32.CrossRefGoogle Scholar
Paquay, R., De Baere, R. & Lousse, A. (1971). Dos variations du poids vif chez la bête bovine. Revue Agric. Brux. 24, 419–30.Google Scholar
Paquay, R., De Baere, R. & Lousse, A. (1972a). Studies on the digestibility of ration constituents in the cow. 2. Nitrogen and ether extract. J. agric. Sci., Camb. 78, 141–5.CrossRefGoogle Scholar
Paquay, R., De Baere, R. & Lousse, A. (1972b). The capacity of the mature cow to lose and recover nitrogen and the significance of protein reserves. Br. J. Nutr. 27, 27–37.CrossRefGoogle ScholarPubMed
Robinson, J. J. & Forbes, T. J. (1970). A study of protein utilization by weaned lambs. Anim. Prod. 12, 95–105.Google Scholar
Uhlemann, H. & Poppe, S. (1970). Untersuchungen zum Proteinstoffwechsel wachsender Albinoratten. 2. Versuche mit Proteintragen pflanzlicher Herkunft. Arch. Tierernähr. 20, 315–28.CrossRefGoogle Scholar
Walker, D. M. & Cook, J. L. (1967). Nitrogen balance studies with the milk-fed lambs. 4. Effect of different nitrogen and sulphur intakes on livoweight gain and wool growth and on nitrogen and sulphur balances. Br. J. Nutr. 21, 237–56.Google Scholar
Wallace, J. D., Knox, K. L. & Hyder, D. N. (1970). Energy and nitrogen value of standhill range forage selected by cattle. J. Anim. Sci. 31, 398–403.Google Scholar