**Author details**

Marcela Capcarova\* and Anna Kalafova Faculty of Biotechnology and Food Sciences, Department of Animal Physiology, Slovak University of Agriculture in Nitra, Nitra, Slovak Republic

\*Address all correspondence to: marcela.capcarova@uniag.sk

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
