Funding for this research was provided by:
National Natural Science Foundation of China (3157130570)
Young Scientist Supporting Project
Program for Changjiang Scholars and Innovative Research Team in University (IRT_15R62)
Farm Animals Germplasm Resource Platform
National Transgenic Creature Breeding Grand Project (2016ZX08008-003)
Innovation Base Cultivation and Development Project-research on precise genetic modify in sheep (Z171100002217072)
Text and Data Mining valid from 2018-05-23
Received: 20 October 2017
Accepted: 19 April 2018
First Online: 23 May 2018
: All animal procedures were approved by the Experimental Animal Care and Use Committee at China Agricultural University (Beijing, China). The experiments were performed according to the regulations and guidelines established by this committee.
: The authors declare that they have no competing interests.