I think that like the rest of the food producers its big or not at all, milk 600 cows or more not worth doing other wise they are now going for herds of 6000 cows ,chickens , eggs, firms like tesco tell them how much they will earn per unit and all because we want cheap food its us the consumer they are trying to keep happy so they fish, farm and do what ever to cover these needs not a easy way out
graham