Fred,We have this strain as well. We put 6 eggs in the 'bator last go round, just to check fertility. 4 out of 6 hatched last week. We consider that average to above average, especially for the dead of winter. Out of the 7 cockerels we got from KathyinMO, we saw enough variety that we divided them and started with two "families" immediately. We'll keep those two families apart for 6 or 7 years. Then, we'll add cross blood into the family lines. That's about all we can do.
My birds came from 2 different people and I separated them to start 3 different families ( basically I have 3 pens going right now) I'm using my best roo in pen 1 and 2 and the only other roo that I have left in pen 3. I had culled down to 3 roos but lost one a few weeks back. Right now I only have one hen in each pen but I have 3 others that I can also use down the rd. if I need/want to. Counting the one chick from last night I've hatched 6 or 7 chicks so far out of just over 2 dozen eggs that have gone into lock-down. My RIR's and NH's are hatching out left and right with no issues. All of my breeders eat the same food but I'm going to up the Omega 3 in the food my BR's eat by using Cod oil and see if that helps.
The chicks in the un-hatched eggs are fully formed. Some peep but don't hatch and some don't break the shell at all. I did help 2 chicks out to see what they would do once hatched and they did fine. This is going to sound funny but it almost looks like the chicks are to big for the eggs and can't move to peep but I doubt this is the case. The one that hatched last night is huge compared to my German NH's and RIR's that hatched along side of him.
I'm sure that it's no big deal and I'll get it figured out eventually. I may just go and double the hens in each pen to increase my egg production or just shut these pens down for now and try again in a couple of months.
Chris