Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-03T05:36:43.467Z Has data issue: false hasContentIssue false
  • English
  • Français

Statistical research on the fate of dietary mineral elements in dry and lactating cows III. Phosphorus

Published online by Cambridge University Press:  27 March 2009

F. Lomba ,
R. Paquay ,
V. Bienfet  and
A. Lousse
F. Lomba
Affiliation:
Faculty of Veterinary Medicine, Cureghem, Brussels, Belgium
R. Paquay
Affiliation:
Faculty of Veterinary Medicine, Cureghem, Brussels, Belgium
V. Bienfet
Affiliation:
Faculty of Veterinary Medicine, Cureghem, Brussels, Belgium
A. Lousse
Affiliation:
Faculty of Veterinary Medicine, Cureghem, Brussels, Belgium
Get access Rights & Permissions [Opens in a new window]

Summary

Statistical analyses were carried out on the data obtained under very strict conditions in metabolism stalls with 41 different rations fed to 127 adult non-pregnant dry cows and with 14 other different rations fed to 35 adult non-pregnant lactating cows that had calved 2–6 months earlier and whose daily milk production ranged from 11 to 20 kg.

The correlations between faecal and urinary phosphorus losses, phosphorus in milk, digestible phosphorus and phosphorus balance and the other nutritive factors of the 55 above-mentioned experimental diets have been calculated.

In dry and lactating cows, with very variable intakes of phosphorus, phosphorus faecal and urinary losses show very wide variations and may be important. They are not influenced by phosphorus intake, and are related, among the many other nutritional factors we analysed only to ingested water and to a lesser extent to the nitrogen of the diet.

The phosphorus balance is thus also very much variable and not really related to the composition of the ration.

This low influence of the diet on the apparent fate of phosphorus can be explained by the interference of unpredictable but certainly quite variable endogenous phosphorus excretion, which is also probably responsible for the effect we found of individual factors and of the previous nutritional status.

In the lactating cows, the phosphorus requirements for milk production influence the utilization of phosphorus since a significant correlation exists between phosphorus secreted in the milk and urinary phosphorus.

In our experimental conditions, the Ca: P ratio does not seem to influence the fate of dietary calcium and phosphorus.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 73 , Issue 2 , October 1969 , pp. 215 - 222
Copyright
Copyright © Cambridge University Press 1969

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

REFERENCES

Agricultural Research Council (1965). The nutrient requirements of farm livestock. No. 2. Ruminants. London: Agricultural Research Council.Google Scholar
Altman, P. L. & Dimmer, O. S. (1961). Blood and other body fluids. Fedn. Proc. Fedn. Am. Socs. exp. Biol., Washington D.C.Google Scholar
Compère, R. (1967). L'étude de l'équilibre phosphocalcique du régime, basée sur les variations du métabolisme phosphoré (ed. Duculot, J.). Gembloux.Google Scholar
Dowe, T. W., Matsushima, J. & Arthaud, V. H. (1957). The effect of adequate and excessive calcium when fed with adequate phosphorus in growing rations for beef calves. J. Anim. Sci. 16, 811–20.CrossRefGoogle Scholar
Guéguen, L. (1963). Influence de la nature du régime alimentaire sur I'excrétion fécale du phosphore endogéne chez le veau. Annls. Biol. Anim. Biochim. Biophys. 3, 243–50.CrossRefGoogle Scholar
Guéguen, L. (1965). Contribution à l'étude de l'absorption intestinale et du mode d'excrétion du phosphore chez les animaux. Meded. LandbHoogesch. Opzoek Stns Gent 2, 687–97.Google Scholar
Hegsted, D. M. (1968). Present knowledge of calcium, phosphorus and magnesium. Nutr. Rev. 26, 65–70.CrossRefGoogle Scholar
Kleiber, M., Smith, A. H., Ralston, N. P. & Black, A. L. (1951). Radio phosphorus (P32) as tracer for measuring endogenous phosphorus in cow faeces. J. Nutr. 45, 253–63.CrossRefGoogle Scholar
Lofgreen, G. P. & Kleiber, M. (1953). The availability of phosphorus in alfalfa hay. J. Anim. Sci. 12, 366–71.CrossRefGoogle Scholar
Lomba, F., Paquay, R., Bienfet, V. & Lousse, A. (1968). Statistical research on the fate of dietary mineral elements in dry and lactating cows. II. Magnesium. J. agric. Sci., Camb. 71, 181–8.CrossRefGoogle Scholar
Macy, I. G., Kelley, H. & Sloan, R. (1950). The composition of milks. Bull. natn. Res. Coun., Wash. no. 119.Google Scholar
Manston, R. (1967). The influence of dietary calcium and phosphorus concentration on their absorption in the cows. J. agric. Sci., Camb. 68, 263–8.CrossRefGoogle Scholar
Paquay, R., Lomba, F., Lousse, A. & Bienfet, V. (1968). Statistical research on the fate of dietary mineral elements in dry and lactating cows. I. Calcium. J. agric. Sci., Camb. 71, 173–80.CrossRefGoogle Scholar
Suttle, N. F. & Field, A. C. (1967). Studies on magnesium in ruminant nutrition and effect of increased intakes of potassium and water on the metabolism of magnesium, phosphorus, sodium, potassium and calcium in sheep. Br. J. Nutr. 21, 819–31.CrossRefGoogle Scholar
Wise, N. R., Ordoveza, A. L. & Barrick, E. R. (1963). Influence of variations in dietary calcium: phosphorus ratio on performance and blood constituants of calves. J. Nutr. 79, 79–84.CrossRefGoogle Scholar