[Blackbelly] BB Minerals Lacking?

[AtwoodGG]

Does anyone know what mineral (or?) might be lacking in diet that causes  the 
ABB sheep to eat the bark off oak trees?  This is the first season they  have 
done this.  At first we thought they were just going after the thick  tree 
moss that grows this time of year, then we see the outer bark gone done to  the 
base.  I've heard horses chew wood if they lack certain minerals in  their 
diet.  Could this be the cause for sheep, too?
 
Thanks for any/all input available,
 
The Atwoods in NorCal



**************Planning your summer road trip? Check out AOL Travel Guides.    
  (http://travel.aol.com/travel-guide/united-states?ncid=aoltrv00030000000016)
_______________________________________________
This message is from the Blackbelly mailing list
Visit the list's homepage at %http://www.blackbellysheep.info