"Jim Webster" wrote in message ...

Lotus wrote in message
...
"Oz" wrote in message

many (like me) had bse
cows, but none of these were ever treated with OP's (even in utero).

They were bred from cows that were.

means nothing. Virtually every organic dairy cow in the country at the
moment is bred from cows treated with OPs

'The lack of BSE incidence in beef suckler herds (1) and total lack
of BSE in home reared cattle on organic farms (87) can be attributed
to the preferential use of the ‘non OP’ ivermectin types of warblecide
on these farms. Whereas on conventional dairy farms where BSE
incidence rates were high (1), licensing restrictions on the use of
ivermectin on ‘in milk’ cows necessitated the exclusive use of OP
types of warblecide on dairy farms for economic reasons. '

http://www.markpurdey.com/science_th...s_of_bse_5.htm