In this thesis we study representations induced by irreducible representations of maximal parabolic subgroups of symplectic or special odd orthogonal group over a local non-archimedean field F of characteristics different than 2. We determine their composition series and, as a consequence, reducibility points, length and examples of unitary representations. Irreducible subquotients of the considered representation are determined in terms of Langlands classification, while we describe the tempered parameter by the classification of C. Mœglin and M. Tadić. Jacquet modules play an important role in the determination of irreducible subquotients of induced representations. Their constituents are determined by M. Tadić’s structural formula. Moreover, a composition series of a generalized principal series, established by G. Muić, is the essential step in solving described problems. We induce by ladder representations on a general linear part, which were defined by E. Lapid and A. Mínguez and used to simplify the proof of the classification of unitary dual of general linear groups. The Jacquet modules of ladder representations are also known by the results of A. Kret and E. Lapid. Throughout the thesis, we often use the results on reducibility of induced representations of a general linear group obtained by A. Zelevinsky. Using the fact that the ends of complementary series are unitarizable, we single out examples of unitary ones among considered representations.