Journal article

Publication year: 1996

Pages: 243-252

Journal: Archives of Animal Nutrition

Volume number: 49

Issue number: 3

ISSN: 0003-942X

DOI Link: https://doi.org/10.1080/17450399609381885

Publisher: Taylor and Francis Group

Abstract: 

Two experiments, each following a two-factorial design (2 x 2), were carried out using 12 and 13 male kids initially weighing about 10 kg. Concentrations per kg dietary dry matter were 10 vs. 4 g Ca and 4.5 vs. 2.0 g P in experiment 1 as compared to 10 vs. 17 g Ca and 4.2 vs. 2.5 g P in experiment 2, respectively.

In experiment 1, low Ca intake significantly reduced empty body concentrations of ash, Ca and P with no negative effect on performance traits, wheras low P intake negatively affected feed intake, growth rate and feed conversion ratio, and reduced empty body concentrations of ash, Ca, P and Mg. Low intake of either one or both of these elements increased lipid concentrations of femora, pelvis and vertebrae. In these three bones, the respective ratios Ca/P, Ca/Mg and P/Mg were decreased by low Ca intake and, to greater extents, increased by low P intake. Low intake of both elements caused less pronounced changes than low intake of P alone.

In experiment 2, lowering dietary P concentration to 2.5 g/kg dry matter significantly reduced growth rates without affecting empty body concentrations of ash, Ca, P or Mg. Almost doubling Ca intake significantly increased body concentrations of ash, Ca and P at both levels of P intake without influencing growth rates.

Harvard Citation style: Pfeffer, E., Rodehutscord, M. and Breves, G. (1996) Effects of varying dietary calcium and phosphorus on growth and on composition of empty bodies and isolated bones of male kids, Archives of Animal Nutrition = Archiv für Tierernährung , 49(3), pp. 243-252. https://doi.org/10.1080/17450399609381885

APA Citation style: Pfeffer, E., Rodehutscord, M., & Breves, G. (1996). Effects of varying dietary calcium and phosphorus on growth and on composition of empty bodies and isolated bones of male kids. Archives of Animal Nutrition = Archiv für Tierernährung . 49(3), 243-252. https://doi.org/10.1080/17450399609381885