Fox types are missing from Sakhal and Chernarus types, they are in the Enoch types.
https://github.com/BohemiaInteractive/DayZ-Central-Economy/tree/master
<type name="FoxSteakMeat">
<nominal>0</nominal>
<lifetime>7200</lifetime>
<restock>0</restock>
<min>0</min>
<quantmin>-1</quantmin>
<quantmax>-1</quantmax>
<cost>100</cost>
<flags count_in_cargo="0" count_in_hoarder="0" count_in_map="1" count_in_player="0" crafted="1" deloot="0"/>
</type>
<type name="Foxpelt">
<nominal>0</nominal>
<lifetime>7200</lifetime>
<restock>0</restock>
<min>0</min>
<quantmin>-1</quantmin>
<quantmax>-1</quantmax>
<cost>100</cost>
<flags count_in_cargo="0" count_in_hoarder="0" count_in_map="1" count_in_player="0" crafted="1" deloot="0"/>
</type>