Funding for this research was provided by:
the Prevention and Control of Nutritional Metabolism and Toxic Diseases in Livestock and Poultry (2016YFD0501204)
the 111 Project (B16044)
Received: 14 December 2018
Accepted: 27 March 2019
First Online: 13 June 2019
Ethics approval and consent to participate
: The experimental protocols used in these experiments, including animal care and use, were reviewed and approved by the Institutional Animal Care and Use Committee of China Agricultural University (Beijing, China).
: Not applicable.
: The authors declare that they have no competing interests.