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Production of dietary feed supplements enriched in microelements in a pilot plant biosorption system
Witkowska, Z.; Rusek, P.; Witek-Krowiak, A.; Chojnacka, K.; Tuhy, Ł. & Samoraj, M.
Abstract
In this work, biosorption was used as a method
to enrich biomass (soybean meal) with microelements
[such as Zn(II), Cu(II), Mn(II) and Fe(II)] that are essential
in livestock nutrition to produce dietary feed supplements.
The biosorption process was carried out in a specially
designed pilot plant system with two-column reactors
according to the principles of the eco-friendly effluent-free
technology. The applicative parts of products and innovative
biological feed supplements were produced for zootechnical
tests on animals (hens, goats and fatteners).
Multielemental analysis showed a multiple increase in the
content of each microelement in the soybean meal after
biosorption [of Zn(II)—168 times, Cu(II)—179 times,
Mn(II)—62 times and Fe(II)—50 times]. The process was
analyzed in terms of technological indicators and preliminary
economic analysis, including the cost of materials,
labor costs and depreciation of the equipment used. It was
found that the cost of supplementation of 1 kg of feed for
laying hens and fattening pigs with the new preparation
enriched with Cu(II) and manufactured on a technical scale
was around $0.393.
Keywords
Biomass; Cost analysis; Feed additives; Micronutrients; Technical scale
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