Mineral Requirements

Currently, dietary mineral, as vitamin, specifications for ratites are based on suggestions. A major problem in ostrich feeding is that calcium is very often overfed, with the result of depressed uptake of zinc and manganese. Although a total dietary calcium concentration of 2.0 to 2.5% is recommended for ostrich layers in intensive production systems, excellent laying and fertility results have been achieved with dietary calcium levels as low as 1.6% on a dry matter basis.[8] Under intensive farming conditions, leg problems seldom occur in young ostrich chicks fed a diet with calcium levels around 1.5 to 1.6%.[9]

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