Abstract
In developing countries like Nigeria, milk and dairy products which are major sources of calcium and phosphorous are rarely taken by most adults due to high cost. This therefore resulted in osteomalacia, osteoporosis and other related diseases to some elderly persons. Domestic birds which bones are rich in minerals, readily available and cheaper than mineral supplements become the next available option despite their hardness to chew. This study therefore investigated the calcium and phosphorous contents of commonly relished local, old layer and broiler chicken bone ashes and their ratios. Standard analytical procedures were used for the analyses while their ratios were calculated. The results revealed that their calcium content ranged from 30.42 to 49.01 mg/100g, phosphorous 17.67 to19.23 mg/100g and ratios 1.64 to 2.55. Old layers’ bones had the best dietary mineral content while local chickens’ bones had the least. Their ratios were higher than that recommended for human by the nutritionist for healthy and strong bone formation.
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