Chityna stanowi drugi po celulozie najczęściej występujący polisacharyd w przyrodzie. Wchodzi ona w skład m.in. egzoszkieletu owadów, pajęczaków, skorupiaków, muszli mięczaków czy ścian komórkowych grzybów. Dotychczas w żywieniu drobiu skutecznie stosowano chitozan, który powstaje dzięki deacetylacji chityny (Świątkiewicz i in., 2014). Z powodu wprowadzania zmian w Rozporządzeniu Parlamentu Europejskiego i Rady (WE) nr 999/2001 dotyczących możliwości wdrażania materiałów paszowych wytworzonych z biomasy bezkręgowców w dietach zwierząt nieprzeżuwających (aneks IV) rośnie zainteresowanie tym polimerem.

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