EEffects of low phosphate intake on bone and mineral metabolism and microbial protein synthesis in lambs

Dennis Scott, Simon Robins, Phyllis Nicol, X B CHEN, William Buchan

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Abstract

Growing lambs were fed diets either low or adequate in phosphorus and their effects on Ca and P retention, bone formation and resorption and on ruminal microbial protein synthesis were measured. Plasma osteocalcin was used as an indicator of bone formation rate. Levels in plasma were lower in lambs fed the low P diet and were associated with a fall in plasma P concentration and reduced Ca and P retention. Low P intake had no effect on microbial protein synthesis or on bone resorption determined using urinary pyridinoline and deoxypyridinoline as markers. These results suggest that lack of mineral, rather than reduced ruminal microbial protein synthesis, is the main factor contributing to the reduction in bone formation rate seen in lambs fed low P diets.

Original languageEnglish
Pages (from-to)183-187
Number of pages5
JournalExperimental Physiology
Volume79
Issue number2
Publication statusPublished - 1 Mar 1994

Keywords

  • GLA-PROTEIN
  • PLASMA
  • OSTEOCALCIN
  • SHEEP
  • PHOSPHORUS
  • DISEASE
  • SERUM
  • AGE

Cite this

Scott, D., Robins, S., Nicol, P., CHEN, X. B., & Buchan, W. (1994). EEffects of low phosphate intake on bone and mineral metabolism and microbial protein synthesis in lambs. Experimental Physiology, 79(2), 183-187.