1. Pure Chicken blood is difficult as its usually washed away with water at the abbatoirs. Try a chicken abbatoir though and see. You can also ask a butcher for Ox and Chicken Liver and Liver Blood.
2. A great method is to Blend Ox and or Chicken Livers with or without pilchards/Sardines and make a nice DISGUSTING Barbel Soup. Put into a Coke Bottle and when at the dam get in a boat and squeeze the whole bottle over your area. A small breeze works GREAT to make it travel further. This is a Gross but very effective method. Especially if you want to pull them into a bay to start calling, popping or fly fishing for them.
What i usually do is i buy or preferably make some Plain Boilies and Put them in a Ziplock bag and soak them properly with Supercast or Conoflex Barber Dip. Making them is a pain in the arse but its really cheap.
When i Get to the dam i throw a Rod with a Bass or Carp head (Crushed flat and soaked in Barber Dip) or a whole hand size kurper (Stomach Cut open before Freezing) which has been Soaking in Barber. The other rod i throw my Boilies on a hair rig or i might Throw out with hooks FULL of Worms dipped in Barber dip. I take a whole lot of the soaked Boilies and Shoot them all over my area with a Kettie.
This should pull the Barbel in and you just up your Bait size to get the bigger guys
