Funding for this research was provided by:
the National Key Research Program of China (2017YFD0502200)
the Program of Main Livestock Standardized Breeding Technology Research and Demonstration (2016NYZ0052)
the Public Welfare Scientific Research Institutes Basic Research Projects (SASA2017A07)
the Transformation Fund of Scientific and Technological Achievements of Scientific Research Institutes in Sichuan Province (2018YSZH0005)
the Special Finance of Sichuan (SASA2014CZYX009)
Text and Data Mining valid from 2019-02-27
Received: 5 December 2018
Accepted: 24 January 2019
First Online: 27 February 2019
Compliance with ethical standards
: The authors declare no competing interests.
: This article does not contain any studies with human participants or animals performed by any of the authors.