Thank you all very much for your comments they make me do more research
it was probably not the case of selenium poisoning since we have a deficiency of selenium in miami I am not ruling out a possible poisonus annual or vine. all the other ewes are fine and I have the tendency to believe that some sort of blockage was the cause . marc _______________________________________________ This message is from the Blackbelly mailing list Visit the list's homepage at %http://www.blackbellysheep.info