I waited another week & still saw no growth.  By then the good eggs were easy to tell.  When I cracked the bad eggs open, some had dead rotting embryos, others nothing but the ring grew.
 
Don't rush to throw out, though. An early vein & blood ring could look alike. When all the other good eggs have spidery veins & you can see the chick's eye looking back, you'll know there's a problem with a mostly clear egg. I waited until the embryo shadow was fairly large in the healthy eggs.
	
		
			
		
		
	
				
			Don't rush to throw out, though. An early vein & blood ring could look alike. When all the other good eggs have spidery veins & you can see the chick's eye looking back, you'll know there's a problem with a mostly clear egg. I waited until the embryo shadow was fairly large in the healthy eggs.
 
	 
 
		 
			
		
		
		
	
	
			
		 
 
		 
 
		 
 
		 
 
		 
 
		
 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		