Article History
Received: 22 December 2017
Accepted: 15 February 2018
First Online: 26 February 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Ethical clearance was obtained from Hawassa University School of Veterinary Medicine Research Ethical Review Committee and from the National Research Ethical Review Committee, Ministry of Science and Technology. Official permission was also obtained from Amhara Region Agriculture Bureaus and from the center. All the animals were slaughtered in a humane manner to reduce their suffering and pain. This article does not contain any studies with human participants performed by any of the authors.