you can calibrate your hygrometers to see how far off they are.. I get mine from Amazon.. they are the kind that can also be adjusted.. so if I ever find they are reading off I can manually change them so they read correctly
in all honesty .. once you get to know your bator and how it acts in your home many people will just keep a hygrometer on hand and pretty much ignore it.. it's just a matter of figuring out what it needs to run for your particular situation. For people who are new to hatching .. or are working with a new bator.. or have some special eggs on hand that they are trying to incubate; a good accurate hygrometer or a scale to weigh the eggs (to monitor weight loss) is a must
as for the chicks dragging around the shell.. some do that.. the umbilical cord just needs to dry then it breaks pretty easily.. it's just that some chicks seem to have them snap sooner than others. I have had some hatches where one or two will drag the shell for a few minutes.. and other hatches where none do. so long as they don't rupture anything they are fine
since the shipped eggs did fine (10 out of 14 for shipped is good) the incubator wouldn't be the problem..
it sounds like the problem with your home grown eggs was mainly a fertility issue.. it could have also been improper handling at collection or a nutritional issue with the hens
Did you or your sister store the eggs before they were set?... if so the way they were stored could have impacted the hatch rates
without knowing more about the chicks in the unhatched eggs it's a little hard to pinpoint things
I did calibrate my hygrometers that I bought. I can't do the Genesis one, at least I don't know how to do that. That is why I say the Genesis is 10 % low from the other two, which were with in 3 degrees of each other. One was 65% and one was 68% when I calibrated them with the salt and water method. I just feel it is discuraging that you can get one that is closer to the right number. Both of the temp gages on the ones I calibrated registered lower by one degree than the genesis also.
I know that I have a problem with fertility with my eggs. Even though he was with just 12 hens I picked that I wanted to hatch from they were not all his favorites so he didn't really care about fertilizing them.
This hatch was to help get me some outside roos to help him with the 30 (now ++) hens he has to choose from. I can see the ones he likes but I am not there when they lay the eggs to tell which are his favorites eggs.
When I collect the eggs I put them in a carton so I can tilt them from side to side until I have all the ones I want. I was three days collection eggs and then picked the ones I wanted to hatch. They side on the counter beside the bator. The bator is in a corner of the counter where it is out of the way and out of any draft. I put a fish tank thermometer in for a while that read 99 degrees and a regular human thermometer and it read the same even though the Genesis read 100 and some times 100.2. I thought maybe the difference is the level it was reading where the others were on the eggs it might have been reading up higher.
My sister brought me her eggs all on one day and that was two days before I set them. They were eggs from the day she brought them and I was the one that turned them as I read here to do.
I am sure as I learn more I will have better hatches. That is why I am here. I want to learn as much as I can about what is going on. I wish I had opened the eggs. I did that from the last two hatches I did in my home made incubator. They all looked pretty much like the egg I opened this time. They were well formed and yokes were obsorbed. It was just hard to do them all this time. I need to get a little harder in my feeling. It is strange because I have had not problem with butchering animals in the past but these were not supposed to die.
I did have almost a 50 percent hatch so maybe I am expecting too much. It is better than the other two in which I got only 4 out of each hatch of 14 each time.
d
your chicks were fully developed and soaking wet in the shell right. it didn;t look like they had any reason not to make it.
one thing is for sure. it won;t hurt you to try this. run a hatch of your own eggs maybe even just a few. holding a 30% humidity and letting it drop below 20 before adding water ( when you add water it will spike to the high 40 to 50% ranges.
.
your eggs were fresher and did not have the loss and the bigger air sack of the shipped eggs. so they could tolerate the higher humidity.
when I see my hygrometer at 15 or 18% I say " where is my water jar ?"
my first hatch ( out of 8 so far ) went 87.5% all the rest are between 90 and 100% with one perfect run. I promise you you have nothing to loose. and after a few runs. have a world of information that you can't buy.
quit throwing away good money after bad and grab one of those meters. any one of them please. NOW lets hatch some eggs playing with the numbers and see what works. make notes. and soon. every hatch will have close to the same results/ Perfect.
They didn't look like they were soaking wet. Just wet and well formed and ready to hatch. I did run this hatch at 50 % for the first few day then when down to 35 per cent. At lock down I went up to 60 to 65. LOL You want to make me start collection eggs again to go for it. My DH may leave if I have any more boxes with chicks and lights in the though.......
I didn't want to jump to the conclusion that mbleily's chicks drowned since they didn't describe what condition they were in other than "totally formed and yoke absorbed".
All they said about the air cells was "My candler will not see in to the blue or brown eggs and that is all I put in so I just can see the air sack." And I know for a fact that not all shipped eggs have larger air cells.. I just received shipped eggs the other day that had perfect tiny little air cells (very fresh eggs from a member of this board) .. so it's possible that their shipped eggs were in the same condition. We also don't know if they stored their eggs for any length of time or how they were stored.. So without more info from mbleily we can only guess what the issue was.
The shipped eggs did have a dip in a couple of the eggs but the others looked pretty much like mine did. You can see the way I stored them and how long in the first answer in this post. I hate losing good chicks this way. I just need to learn more and study harder.
Thanks to you all for your posts. It really has helped me think about the whole thing more.