This cuts both ways though, China is dependent on foreign agriculture[1], which Russia cannot provide them right now (certainly it will be hard to farm in Ukraine during an active conflict). Particularly for things like pork.[2]

Stopping the flow of just pork products to China may result in enormous unrest and it certainly wouldn't be a given that the CCP would be capable of quelling that.

[1]: https://www.fas.usda.gov/data/china-evolving-demand-world-s-...

[2]: https://www.worldstopexports.com/international-markets-for-i...