Effects of dietary zinc and manganese sources on retention and apparent absorption rate of zinc, manganese, copper and iron in growing goats
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Abstract
0.029 g per 100 g concentrate (DM basis) respectively. The results showed that intakes of concentrate and maize stover, and retention and
apparent absorption rate of Fe and Cu were not affected by dietary zinc and manganese sources; whole tract apparent absorption rate of Zn
and Mn in FML were lower than that of PML, CML and control (P < 0.05), retention of Zn per day in PML and CML was higher than that
of control (P < 0.05), and retention of Mn per day in PML, CML and FML was higher than that of control (P < 0.05). The results indicated
that Met-Zn and Lys-Mn supplementation can improve apparent absorption rate of Zn and Mn in growing goats, but have no impacts on
apparent absorption rate of Fe and Cu.
Keywords: lysine, trace element, blood parameter
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