Funding for this research was provided by:
National Natural Science Foundation of China (31372293)
the 863 State High-tech Development Plan (2013AA102503)
Shandong Swine Industry Technology System Innovation (SDAIT-08-03)
Agricultural Science and Technology Innovation Project of SAAS ((CXGC2016A04))
the Natural Science Foundations of Shandong Province of China ((ZR2017MC043))
Text and Data Mining valid from 2018-05-18
Received: 19 July 2017
Accepted: 30 April 2018
First Online: 18 May 2018
Ethics approval and consent to participate
: The animals used in this study were raised at Laiwu pig conservation farm and one Yorkshire breeding farm. Ear tissues of the pigs used in the study were collected in strict accordance with guideline (IACC20060101, 1 January 2006), which was approved by the Institutional Animal Care and Use Committee of Institute of Animal Science and Veterinary Medicine, Shandong Academy of Agricultural Sciences. We obtained written agreements from the pig owners to use the samples.
: The authors declare that they have no competing interests.
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