In Hefei city, farmers reported a drop in egg production because of the heat, according to a Jianghuai Morning News report last week, adding that some facilities have installed cooling systems for their hens.
The drop in supply in several provinces has caused egg prices to jump.
In Hefei, Anhui province's capital, they were up around 30 percent, and there were similar spikes in the cities of Hangzhou and Hai'an, according to local media.
Hefei has so far logged 14 days of temperatures above 38 degrees Celsius, Hefei Evening News said, noting that this was a record.
Sustained exposure to extreme temperatures can exacerbate losses in production from animals, including eggs and milk, according to the US Department of Agriculture.
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