title: The effect of high phosphorus intake on calcium and phosphorus retention and bone turnover in growing lambs.
abstract: Growing lambs were fed diets that just met their requirement for Ca but which supplied either 1 or 3 times their requirement for P and the effects on Ca and P retention and on bone turnover were monitored. Feeding the high P diet had no adverse effect on Ca and P absorption or retention or on bone formation rate. Bone resorption rate was a little higher in lambs fed the high P diet but there were no differences between treatments in plasma parathyroid hormone, 1,25-dihydroxyvitamin D3 or 25-hydroxyvitamin D3 levels or in bone mineral content. It would appear from these results that feeding diets that are rich in P is unlikely to have any adverse effect on skeletal mineralization in the lamb provided that their minimum requirement for Ca is met.
authors.affiliation: Rowett Research Institute, Bucksburn, Aberdeen.
authors.forename: M
authors.initials: M
authors.lastname: Wan Zahari
authors.forename: D
authors.initials: D
authors.lastname: Scott
authors.forename: N
authors.initials: N
authors.lastname: Loveridge
authors.forename: W
authors.initials: W
authors.lastname: Buchan
authors.forename: J
authors.initials: J
authors.lastname: Milne
mesh_terms: D000136:Acid-Base Equilibrium; D000818:Animals; D001769:Blood / Q000378:metabolism; D001842:Bone and Bones / Q000378:metabolism*; D002118:Calcium / Q000378:metabolism*; D006728:Hormones / Q000097:blood; D008297:Male; D008903:Minerals / Q000097:blood; D010758:Phosphorus / Q000378:metabolism* / Q000494:pharmacology*; D012756:Sheep / Q000254:growth & development* / Q000378:metabolism*
chemical_list: D006728:Hormones; D008903:Minerals; D010758:Phosphorus; D002118:Calcium