Biological availability of calcium from different mineral supplement [study conducted in the Philippines]
1982
Acda, S.P.
A total of 1040 day-old broiler chicks were utilized to determine the biological availability of calcium from different mineral supplements. The birds were randomly distributed to the twenty-six dietary treatments. The first dietary treatment was a basal diet (corn-soybean diet). The other twenty-five dietary treatments consisted of five levels (0.40, 0.60, 0.80, 1.00 and 1.20%) and five sources of calcium (CaCO3 (U.S.P.), bone meal, bone char, limestone and oyster shell). Each dietary treatment was replicated 4 times with 10 birds per replication. Results showed that the criteria of response such as total feed consumption, body weight and feed conversion efficiency were not significantly affected by the different mineral supplements. However, among the different mineral supplements, bone char appeared to be more available for growth of the broilers. Bone meal is more efficiently utilized for bone calcification, compared with the other mineral supplements. Taking all criteria of biological response into considerations, it can be concluded that both bone meal and bone char are 105% as available as CaCO3 (U.S.P.)
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