Figuring your hatch rate

[Livinwright Farm]

Quote:
That's when roos get fired!!

fired? don't you mean FRIED!

"MMM!!! Popcorn chicken!"

 

[jm93030]

If you buy 2 dozen of eggs

will you only count the good ones to make your percentage?



In order to give feedback about someones flock fertility , I asume you will have to count the amount of eggs you get .

after that you can segregate

Non fertile = %
fertile =%
viable = %
Quitters =%

Total hatch =%

or also any defect or problem you see during the process

 

[8ROYALS]

Quote:
This is what I do...esp for other people eggs...how you do your own is up to you, but if you are shipping eggs and only give the % of what was fertile that is kinda misleading esp if they are buying them. I know no one can promise fertility, but any other way with out including you non fertile in your rate is false. Just my opinion. I gave some one 7 eggs...1 was not fertile, 1 quit and the other 5 hatched. So if I do not include the non-fertile her hatch rate is 80%, when in reality it is closer to 66%. Maybe I am wrong...who knows?

 

[Livinwright Farm]

Quote:
This is what I do...esp for other people eggs...how you do your own is up to you, but if you are shipping eggs and only give the % of what was fertile that is kinda misleading esp if they are buying them. I know no one can promise fertility, but any other way with out including you non fertile in your rate is false. Just my opinion. I gave some one 7 eggs...1 was not fertile, 1 quit and the other 5 hatched. So if I do not include the non-fertile her hatch rate is 80%, when in reality it is closer to 66%. Maybe I am wrong...who knows?

Not trying to be snippy, but I think there is a big difference here, and that difference is: Hatch Rate vs Fertility Rate. This thread is about hatch rates.

If you want to calculate the fertility rates then I agree, you should include the ones that were not fertile. However, if you are simply trying to figure the hatch rate, then you have no need to be counting the non -fertilized eggs.

 

[Davaroo]

Quote:
There are several rates you can track:

1. Percentage hatch rate.
2. Viability rate (also called "fertility").

Hatch percentage is the total set / total hatched
Viability is the total set / total fertile (what you call, "...into lockdown," assuming you have correctly identified and are culling the clears)

There is also a third, called:

3. "Vigor" or "Mortality rate."

This is total hatched / surviving birds, after a given time (usually 2 weeks.)

Of the three, the latter two are the most informative about your parent stock, the success of you rearing methods and anything related to deliberate breeding efforts.
The first mostly lets you know you have a functional incubator.

 

[8ROYALS]

Quote:
This is what I do...esp for other people eggs...how you do your own is up to you, but if you are shipping eggs and only give the % of what was fertile that is kinda misleading esp if they are buying them. I know no one can promise fertility, but any other way with out including you non fertile in your rate is false. Just my opinion. I gave some one 7 eggs...1 was not fertile, 1 quit and the other 5 hatched. So if I do not include the non-fertile her hatch rate is 80%, when in reality it is closer to 66%. Maybe I am wrong...who knows?

Not trying to be snippy, but I think there is a big difference here, and that difference is: Hatch Rate vs Fertility Rate. This thread is about hatch rates.

If you want to calculate the fertility rates then I agree, you should include the ones that were not fertile. However, if you are simply trying to figure the hatch rate, then you have no need to be counting the non -fertilized eggs.

I agree that is true...I personally would want to know someone's fertility rate, if I were going to buy eggs. So I think which ever way you do it is great. I would have both figured if it was me...
And you are not snippy...

 

[ColbyNTX]

If I am buying or selling eggs to or from someone, I would give them the rate from how many I put in the bator vs hatch and I would expect the same from them. If I go collect 10 eggs and only 7 develope and 7 hatch, I would not advertise 100% hatch rate, I would tell you 70%. I guess next time I get eggs from someone I will be more specific when I ask about their hatch rate. I won't take the number of bad eggs out to make my numbers look better. That being said, I am not very happy if I get a hatch rate less than 95% on my own eggs collected at home.