Text and Data Mining valid from 2019-12-01
Received: 1 November 2019
Accepted: 22 November 2019
First Online: 3 December 2019
Ethics approval and consent to participate
: Handling of birds was performed according to the Animal Ethics Review Committee of Suez Canal University, Egypt.
: All authors gave their informed consent prior to their inclusion in the study.
: The authors declare that they have no competing interests.