The application of macroalgae in animal feeding

• Autorzy: Michalak I. , Chojnacka K.
• Języki publikacji: EN

Abstrakty

EN

Macroalgae are multicellular plants which are found in a variety of marine and freshwater environments. They can be used in various branches of industry because they contain iodine, alginic acid, vitamins, micro- and macroelements. In recent years, there has been an increasing interest in the application of macroalgae in animal feeding, due to their nutritional value. Algae are rich, particularly in proteins and unsaturated fatty acids. Moreover, some of them possess medicinal properties, especially in treatment of diseases of the digestive tract. Beside this, macroalgae are capable of accumulating high concentrations of minerals (Zn, Ni, Mo, I, Co, Cr) and also contain vitamins (B, C, D, E, K). Macroalgae can bind minerals in the process of biosorption and bioaccumulation. This property has been previously used in the wastewater treatment process. Macroalgae could be used as a food supplement to supplement the livestock diet with the recommended daily intake of some macroelements and trace elements. In the present paper, the possibility of the application of macroalgae as biological mineral supplements for livestock is discussed. The experiments of biosorption of Cr(III), Cu(II), Co(II) and Mn(II) by a macroalgae Cladophora glomerata were carried out. The mechanism of biosorption was identified as ion-exchange. The maximum metal uptake by the algae was evaluated. The influence of the pH on the efficiency of the process was investigated. The sorption equilibrium was described with the Langmuir equation.

Słowa kluczowe

EN

macroalgae; feed additives; microelements

PL

makroalgi; dodatki paszowe; mikroelementy

• Wydawca: West Pomeranian University of Technology. Publishing House
• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2006
• Tom: Vol. 8, nr 4
• Strony: 83--87
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Michalak I.

autor

Chojnacka K.

• Institute of Inorganic Chemistry and Mineral Fertilizers, Wroclaw University of Technology, ul. Smoluchowskiego 25, 50-372 Wroclaw,

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