Funding for this research was provided by:
National Science and Technology Support Program (2015BAD12B05)
Integration and Demonstration of Key Technologies for Duck Industrial in Sichuan Province (2014NZ0030)
China Agricultural Research System (CARS-43-8)
Basic Research Programs of Sichuan Province (2017JY0014/2014-002)
Text and Data Mining valid from 2018-04-28
Received: 1 December 2017
Accepted: 20 April 2018
First Online: 28 April 2018
Ethics approval and consent to participate
: The study was approved by the Animal Ethics Committee of Sichuan Agricultural University (approval No. XF2014-18).
: The authors declare that they have no competing interests.
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