PAPER TITLE :DIETARY CONTRIBUTIONS OF CU, FE AND ZN FROM GALLUS GALLUS DOMESTICUS AND NUMIDA MELEAGRIS

FUTA JOURNAL OF RESEARCH IN SCIENCE | VOLUME 15 NUMBER 1 2019

Paper Details

  • Author(s) : Tomori, Wasiu Bolaji
  • Abstract:

Metal ions can regulate a lot of physiological processes with extensive specificity and selectivity in living organisms but they could pose health problem when their concentration is elevated in the food chain. The present study therefore seeks to determine dietary contributions of Cu, Fe and Zn from Gallus domesticus and Numida meleagris by determining the metal concentrations in gizzard, kidney, liver and muscle using standard procedures. The results obtained showed that female caged Gallus domesticus has the highest copper concentration (2.91 mg/kg) in its gizzard while its male counterpart has the least (0.03 mg/kg).  The female Numida meleagris has highest concentration of iron (8.76 mg) in the liver and the lowest concentration (0.06 mg/kg) in the gizzard of the two birds. The highest concentration of zinc is found in the muscle of free ranged female and male Gallus domesticus (3.74 mg/kg; 3.18 mg/kg) respectively. The estimated daily dietary intake of these metals in various organs and tissues of the different birds was found to be generally higher in liver; however, it could not be said to be of any adverse effect as the values were less than the Recommended Daily Allowance (RDA). Hence, their consumption is deemed safe and of no environmental and/or dietary health risk to the population.
Keywords: Heavy metals; Dietary; Birds, Daily Allowance; Health Risk.