Open AccessSolubility and bioavailability studies of limestone sources with layers.
Author(s) -
M.A. Tion,
Paul C. Njoku,
S.O. Ogundipe
Publication year - 2021
Publication title -
nigerian journal of animal production
Language(s) - English
Resource type - Journals
ISSN - 0331-2062
DOI - 10.51791/njap.v32i2.1071
Subject(s) - bioavailability , solubility , calcium , chemistry , in vivo , meal , phosphate , absorption (acoustics) , phosphorite , food science , nuclear chemistry , mineralogy , chromatography , environmental chemistry , biochemistry , materials science , pharmacology , biology , microbiology and biotechnology , organic chemistry , composite material
Six limestone sources, oystershell, bone meal and dicalcium phosphate were tested for solu and bioavailability in vitro and in vivo. In the in vitro solubility, 1, 0.5 and 0.25 gram of each som was reacted with 100, 50, 25mls of 12N HCl respectively for 30 minutes. The in vivo bioavai. utilized fasted laying chickens, which were force fed 3. Og calcium from each source. Faecal Pain lasted for 48 hours. Calcium was determined by an atomic absorption spectrophotometer. Result vitro solubility test indicated high solubility rate for dicalcium phosphate (78.9%). Other 5:1:4 produced low solubility values below 40% except for bone ineal. Limestone sources were simi,-:: oystershell. The in vivo bioavailability values of local sources (limestone, oystershell and me meal) were significantly (P < 0.05) higher (87% - 92%) than the imported dicalcium phosa (84.0%). Low solubility of local sources resulted in longer retention time in the GIT, which :-2: the "metering out" effect that produced high bioavailability mean values observed in this Oystershell is universally accepted as a good calcium source for layers. The tested limestone sur was similar to oystershell. It was concluded that any of the sources tested can be used in arz close proximity without fear of adverse effect.