Funding for this research was provided by:
Romanian Ministry of Resaerc (Nucleus Program thought the project PN 16 41 0202)
Article History
Received: 5 March 2018
Accepted: 13 July 2018
First Online: 22 July 2018
Compliance with ethical standards
: The study protocol was approved by the Ethical Committee of the National Research-Development Institute for Biology and Animal Nutrition, Balotesti Romania.