
About the time that Panacur is due to start, I am normally upping the feed on my bitches anyway.
I start buying the "value" type packs of white fish from supermarkets. Much cheaper as they aren't uniform in size/shape etc.
I poach them in half milk/half water. And I just mix the Panacur in before giving my girls their special treat! :-)
Although I have often found, particularly close to whelping, that a bitch may not eat all of her fish, as it only happens a couple of times, it has never made a difference to the result.