Skip to main content Accessibility help

Dried poultry manure as a source of phosphorus for sheep

  • A. C. Field (a1), C. S. Munro (a1) and N. F. Suttle (a1)


Feeding and balance trials with 32P were carried out to measure the true absorption of P in battery and broiler waste and to assess the risk of urolithiasis in sheep.

Groups of six, 8-week-old Scottish Blackface lambs were given one of eight experimental diets containing barley and either 15, 30, 45 or 60% of dried broiler or battery waste. After about 12 weeks on the diet, balance trials with 32P were conducted on a sample of the female lambs from each dietary group. The phosphorus intakes ranged from 4·6 to 15·9g/day.

Poultry waste was a good source of P. The proportion of dietary P absorbed by the lambs (A) ranged from 0·49 to 0·90 and was inversely related to the dietary intake of P (I). The relationship was A = 0·893 – 0·0219I. All lambs were in positive P balance (0·24–2·81 g/day), but only the bones from the lambs consuming the diets containing 45 and 60% broiler waste were not osteoporotic.

All lambs absorbed more P than they retained and the partition of the excess between urine and faeces were very variable.

No clinical cases of urolithiasis were seen, but uroliths were found at post-mortem. The incidence was highest in lambs consuming broiler waste and in lambs consuming the diets containing 15% poultry waste.



Hide All
Agricultural, Research Council (1965). The Nutrient Requirements of Farm Livestock. No. 2 Ruminants. London: A.R.C.
Astrup, H. N., Nordrum, E., Steenberg, K. & Nedkvitne, J. J. (1974). The true disgestibility of phosphorus in the ewe. Ada Veterinaria, Scandinavica 15, 448–50.
Blair, R. & Knight, D. W. (1973). Recycling animal wastes. Feedstuffs 45 (10) 32–3, 45 (12) 31–3.
Brüggemann, J., Bronsch, K., Lörcher, K. & Seuss, H. (1959). Resorptionsstudien an Nutztieren. III. Die Bestimmung der Phosphorresorption aus Mineralfuttern. Zeitschrift Für Tierphysiologie Tierernahrung und Fultermittelkunde 14, 224–41.
Compére, R. (1966). Utilization du 32P dans l'etude de l'action du niveau calcique de la ration sur le métabolisme du phosphore. 2. Le Mouton. Bulletin Recherches Agronomiques de Gembhux 1, 190227.
Compére, R. (1969). Valeur comparée des phosphates monoammonique et diammonique comme sources de phosphore et d'azote alimentaires chez le mouton. Bulletin Recherches Agronomiques de Gembloux 4, 339–67.
Compére, R., Vanuytrecht, S. & Fabry, J. (1965). Effet du taux de calcium de la ration sur le metabolisme du phosphore chez le mouton. Compte rendus des stances de la Societe Beige de Biologie 5, 1258–61.
Field, A. C. (1969). Urinary calculi in ruminants. British Journal of Nutrition 28, 198203.
Field, A. C., Suttle, N. F. & Nisbet, D. I. (1975). Effects of diets low in calcium and phosphorus on the development of growing lambs. Journal of Agricultural Science, Cambridge 85, 435–42.
Lueker, C. E. & Lofgreen, A. P. (1961). Effects of intake and calcium to phosphorus ratio on absorption of these elements by sheep. Journal of Nutrition 74, 233–8.
Robinson, R., Roughan, M. E. & Wagstaff, D. F. (1971). Measuring inorganic phosphate without a reducing agent. Annals of Clinical Biochemistry 8, 168–70.
Shipley, R. A. & Clark, R. E. (1972). Tracer Methods for in vivo kinetics, p. 82, New York: Academic Press.
Smith, L. W. (1974). Dehydrated poultry excreta as a crude protein supplement for ruminants. World Animal Review 11, 611.
Suttle, N. F. & Field, A. C. (1969). Studies on magnesium in ruminant nutrition. 9. Effect of potassium and magnesium intakes on development of hypomagnesaemia in sheep. British Journal of Nutrition 23, 8190.
Sykes, A. R., Coop, R. L. & Angus, K. W. (1975). Experimental production of osteoporosis in growing Iambs by continuous dosing with Trichostrongylus Colubriformis larvae. Journal of Comparative Pathology 85, 549–59.
Sykes, A. R., Nisbet, D. I. & Field, A. C. (1973). Effects of dietary deficiencies of energy, protein and calcium on the pregnant ewe. V. Chemical analysis and histological examination of some individual bones. Journal of Agricultural Science, Cambridge 81, 433–40.
Tillman, A. D. & Brethour, J. R. (1958). Ruminant utilization of sodium-meta-ortho- and pyrophosphates. Journal of Animal Science 17, 792–6.
Wasserman, R. H. & Taylor, A. N. (1973). Intestinal absorption of phosphate in the chick. Effect of vitamin D3 and other parameters. Journal of Nutrition 103, 586–99.

Dried poultry manure as a source of phosphorus for sheep

  • A. C. Field (a1), C. S. Munro (a1) and N. F. Suttle (a1)


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