Unfertilized egg? Guinea Fowl Day 12

[envious]

I recently bought some guinea fowl eggs from a local person. It's Day 12 now, and I'm not seeing much development. I heard it takes longer, but I'm a little worried because I don't see any progress. I'm hoping someone more familiar can tell me how a Day 12 egg should look like.

 

[nuthatched]

It's infertile.

 

[envious]

It's infertile.

Damn... the eggs all look like that, guess I got unlucky and had a really bad batch from them. Thanks.

 

[Tex452]

I got 22 Guinea eggs from my cousins neighbor, he also got a batch of 22, we both have NR360 incubators, it was the middle of summer and the eggs didn’t hatch well, most looked to be not fertile, I hatched out 7 he hatched out 3.
I wonder if time of year might have something to do with Guinea fertility, because my chicken eggs aren’t hatching as good as the spring time, lots more eggs aren’t hatching most not fertile, now my quail eggs are hatching really well, but we collect those ourselves and I put them in a cooler with ice packs almost immediately, changing ice packs 3 times a day, we try to keep it around 65*, I have quail and chicken eggs hatching now, so far 34 of 45 quail have hatched with more pipping, the chicken eggs are just starting to hatch, and I have another batch of 45 quail eggs that will hatch this weekend.

 

[Susan Skylark]

Heat and cold can significantly impact development, I usually run 90% hatch rates but was getting 50% in February due to preincubation cold exposure. If it is above 80 or below 30 even a few hours can ruin an egg, so collecting every few hours or waiting until the temps moderate will definitely help your hatch rates.