Article History
Received: 16 January 2017
Accepted: 17 August 2017
First Online: 15 September 2017
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: This article does not contain any studies with human participants by any of the authors. All experiments were conducted at the College of Veterinary Medicine, Nanjing Agricultural University. Animal experiments were approved by the Laboratory Animal Monitoring Committee of Jiangsu Province. The study was carried out in strict accordance with the recommendations in the Guide for the Care and Use of Laboratory Animals. Protocols for the animal studies were approved by the Committee on the Ethics of Animal Experiments of the College of Veterinary Medicine, Nanjing Agricultural University.
: The authors of this paper have no financial or personal relationship with other people or organizations that could inappropriately influence or bias the content of the paper.
Free to read: This content has been made available to all.