Yes they do, and many of their breeders are new this year. I am not knocking MM in any way. Even if this is from them, they are the best hatchery I know and they have been great to us. I just want some healthy chicks and I LOVE the way their cochins look. I have never had such a frustrating and painful time with baby chicks. I just hatched out 35 out of 38 eggs in Dec and 31 are still alive with a LOT less care than these MM are getting. I lost two to bad legs and my DH left the brooder open and 2 chicks fell out and were killed by our laying hens. Otherwise, I have 100% survival. On my Marans I hatched that are 5 weeks old, I have lost one due to a leg dislocation, otherwise 100% healthy. I have 100% survival at week 5 with 6 of the 11 breeds from MM. I would be happy with 90% even, but 0-20% with these specific breeds from MM? No way.
Although a lot of people are losing chicks right away, and this is likely stress/weather induced, a lot of us aren't getting sick chicks until 10 or more days into life. I had the most beautiful partridge cochin, big and fluffy and just awesome. It was by far the biggest replacement chick I had gotten, now it is fighting for it's life and I know I am going to lose it. I am just sick over it. It was so healthy and fat and eating/drinking fine, and then on day 12 I noticed it kind of laying there a little bit sick looking. Today, day 16, it is near coma. I have lost 2 chicks from this second set, 100% of the buff rocks and partridge cochins are affected, about 50% of the cuckoos, blue cochins and EEs.
I have a call into the Poultry DVM at the U of MN. I am waiting for a call back. It's over 2.5 hours away from us, 135 miles one way and the cost to have them do an analysis will be about $100 but they look at 10 birds. I could do 5 from each hatch. I might bite the bullet and do it because I have some REALLY expensive Marans eggs coming in this week and I will be more than P.O.ed if this deal is contagious and will spread to them. I just finished bleaching my incubators and moved them upstairs. The sick chicks and the second set of chicks are downstairs.