Effect Of Glycine Microelements And β-carotene On Content Of Microelements And Vitamin A In Quail Eggs

Abstract

L. V. Shevchenko, O. S. Yaremchuk, S. V. Gusak, V. M. Mihalska, V. M. Poliakovskiy

It was established that in the progeny of quail obtained from the parent herd, which during the growing period was fed as a source of microelements a complex of glycinates of copper, zinc, manganese, iron and cobalt with microbial β-carotene at a dose corresponding to the physiological requirement during the growing period increased the content of iron in eggs by 22,4 % compared to the control, and by 18,9 % compared to quails fed with chelates of microelements and β-carotene at a dose corresponding to half the daily requirement. The concentration of zinc in the quail eggs of this group increased by 16,5 % compared to the control and by 21 % compared to the analogous parameters for the quails of the second experimental group, manganese by 17,4 % and 19 4 %. The increase in the content of iron, zinc and manganese in the quail eggs which feeding complex of glycinate of microelements and β-carotene, at a dose amounting to a daily requirement, indicates their high bioavailability in the digestive apparatus of the bird, their intensive absorption and accumulation in the eggs. It was proved that the content of iron, zinc and manganese in the eggs of quail, which feeding a complex of glycinate of microelements and β-carotene at a dose corresponding to half the daily requirement of the bird, was at the control level, which indicates sufficient provision of its body with these elements. The data obtained when feeding the complex of chelating compounds of microelements and microbial β-carotene to quails indicate an intensification of the conversion of β-carotene to retinol and an increase in the content of the latter in eggs of the quail by 19,7 %. Feeding quails of the complex of glycinate of microelements in a dose corresponding to their needs contributed to an increase in the dry matter content in the shell of the quail eggs by 2,13 % due to an increase in the ash content by 2,3 %, calcium by 0,83 %, zinc by 30,1% and manganese - by 26,5 %. Feeding quails half the daily requirement of chelates of trace elements contributed to sufficient provision of their body with these elements. The conducted studies testify to the absence of toxic effect of chelating compounds of microelements (glycinates of copper, zinc, manganese, iron and cobalt) on the quail organism, sufficient assimilation from feeds both at doses corresponding to demand, and in doses that make up half of it due to increased bioavailability in the tissues.

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