Preservation theorems in {\L}ukasiewicz \\model theory

We present some model theoretic results for {\L}ukasiewicz predicate logic by using the methods of continuous model theory developed by Chang and Keisler. We prove compactness theorem with respect to the class of all structures taking values in the {\L}ukasiewicz $\texttt{BL}$-algebra. We also prove some appropriate preservation theorems concerning universal and inductive theories. Finally, Skolemization and Morleyization in this framework are discussed and some natural examples of fuzzy theories are presented.