Funding for this research was provided by:
National Natural Science Foundation of China (31872333)
Jiangsu Agricultural Science and Technology Innovation Fund (CX (18)2003)
Key Research and Development Plan (modern agriculture) in Jiangsu Province (BE2018354)
Major new varieties of agricultural projects in Jiangsu Province (PZCZ201739)
Major projects of Natural Science Research of colleges and universities in Jiangsu Province (17KJA230001)
The Project of six peak of talents of Jiangsu Province of China and Postgraduate Innovation Project of Yangzhou University (SJCX18_0804, XKYCX17_060)
Received: 15 March 2019
Accepted: 8 August 2019
First Online: 27 August 2019
Ethics approval and consent to participate
: Verbal consent to participate and allow Hu sheep to be used in this study was obtained from the Suzhou stud farm due to skilled surgical methods and minimal damage to sheep. The animal experiment was also reviewed and approved by the Chinese Ministry of Agriculture (license number: 39) and the Jiangsu Provincial Government Animal Care and Use Committee (IACUC) (license number: 45). All experimental procedures were carried out in strict accordance with the Guidelines for the Care and Use of Laboratory Animals in Jiangsu Province and the recommendations of the Animal Protection and Use Committee of the Ministry of Agriculture of China.
: Not applicable.
: The authors declare that they have no competing interests.