Is it Bad Math?

canada-goose

Is Mostly Harmless
11 Years
Jul 16, 2009
14,366
54
366
Just watch the eggs. They'll tell you if you were wrong.
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ThreeBoysChicks

Songster
12 Years
Sep 19, 2007
1,915
10
194
Thurmont, MD
The way I look at it is that Day #1 would end at 7:00 am on the 18th. So Day #21 would end at 7:00 am tomorrow 3/10/2010. You are in Day #21.

So do you have eggs incubating right now? No PIPS? No Hatches? Give us the details....
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The Sheriff

Crowing
10 Years
Jun 17, 2009
11,140
196
321
Northern CA
I have 2 Salmon Favs and 4 GCMs. So far nothing happening but all were viable at lockdown. I was just curious if my math was right. I was assuming I started Day 21 this morning and it will end tomorrow morning. Then I will get an anxiety attack.
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Penturner

Songster
9 Years
Feb 1, 2010
889
14
131
Reno Nevada
I have you figured as ending day 22 at 7:00 a.m. this morning. you might just have a late hatch. I've seen a significant number of people mention eggs not hatching until day 23. not desirable but the chicks did well. If it where me if they have not hatched by tomorrow at 7:00 a.m. I would start carefully opening eggs to figure out what went wrong. Carefully as in expecting there to still be live chicks.
 

startingaflock

In the Brooder
10 Years
Jun 3, 2009
84
0
39
When I asked a similar question, I was given this answer: "If you set on a Thursday, you should be hatching on a Thursday". Hope this helps.
 

Ridgerunner

Crossing the Road
12 Years
Feb 2, 2009
27,315
20,201
907
Southeast Louisiana
Quote:
Great simple answer. I never thought about it this way. It sure makes it easier to count for me.

It takes 21 days on average for chicken eggs to develop and hatch. We all know some can be early or late, but on average 21 days of development. An egg does not undergo 24 hours of development 1/2 of ten percent of 3/4 of a millisecond after it is put in the incubator. (I know I'm being a bit of a smart aleck but I'm trying to get the point across) It gets 24 hours of development at the end of the first day. 21 days of development is the end of the 21st day, not the beginning of the 21st day. If you set the eggs at 7:00 a.m. on Wednesday February 17th, the 21 days of development ends at 7:00 a.m. Wednesday March 10th.

Sounds like you are doing OK.
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