There was a doco on Monsanto's use of hormones on their cows. They were wanting to increase their milk production without increasing their herd numbers - it was pretty gross actually...

Anyway, they mentioned that Brownes were one of the brands that they owned/held a stake in.
I have never been able to find any official info on what they have stakes in excluding the feed/seed companies listed on their website.

hmm...Kitt3n may well have some info on this