candling - air sac growing but...?

Buying, selling, eating or decorating - all about eggs!

candling - air sac growing but...?

Unread postby celestina » April 12th, 2012, 10:36 am

I have just candled some day 12 eggs and the air sacs seem a good size for day 12 (bigger than day 7) but I cannot see anything else in the eggs... I will try again in the dark this evening.

The air sac boundary makes a sharp clean line and not a muddled line.. if that makes sense...and are located in the right place...so all look normal to me.

Is it possible for the air sacs to develop as usual but with no chicks in the eggs?
My little ones are pekins in lavender, lavender cuckoo, lemon cuckoo, blue millies and black mottled.
User avatar
celestina
Registered User
 
Posts: 449
Joined: November 5th, 2011, 11:52 am
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby rocketbunni » April 12th, 2012, 11:06 am

Is the rest of the egg clear? ...I think the airsack in clear eggs does enlarge simply as the egg dehydrates with heat/age
LINZI X
User avatar
rocketbunni
Registered User
 
Posts: 294
Joined: April 6th, 2011, 7:41 pm
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby celestina » April 12th, 2012, 11:46 am

rocketbunni wrote:Is the rest of the egg clear? ...I think the airsack in clear eggs does enlarge simply as the egg dehydrates with heat/age


Right, yes I think the rest of the egg is clear although I will double check this evening...will that mean they are not fertile?
My little ones are pekins in lavender, lavender cuckoo, lemon cuckoo, blue millies and black mottled.
User avatar
celestina
Registered User
 
Posts: 449
Joined: November 5th, 2011, 11:52 am
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby Henwife » April 12th, 2012, 5:40 pm

Candle one of todays eggs to understand what's meant by clear.
Guinea Fowl & Speckled Sussex bantams.
Henwife
Registered User
 
Posts: 2268
Joined: June 2nd, 2006, 10:27 am
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby celestina » April 12th, 2012, 6:24 pm

Henwife wrote:Candle one of todays eggs to understand what's meant by clear.


Yes I did this yesterday and they looked similar other than a slight shadow and the air sac had grown... but will compare again this evening with my OH to get a second take on it... but I fear they may be infertile at the moment even though I have seen my boy treading... I have put some eggs under my broody today so they are a couple of weeks later... I also have 5 day olds in the incubator too...perhaps just a bit early for him yet with the frosts and weather as it has been... it_thumbdown.gif
My little ones are pekins in lavender, lavender cuckoo, lemon cuckoo, blue millies and black mottled.
User avatar
celestina
Registered User
 
Posts: 449
Joined: November 5th, 2011, 11:52 am
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby Henwife » April 12th, 2012, 8:02 pm

At the begining of the season fertility can be rather hit and miss. It's always worth putting in far more eggs than you want until fertility is up to around 90%. You can always dispose of the surplus fertile eggs rather than let them go on to hatch. I do this when I'm fertility testing, but once I'm certain that a high %age will be fertile, I can plan for what I expect to hatch.
Guinea Fowl & Speckled Sussex bantams.
Henwife
Registered User
 
Posts: 2268
Joined: June 2nd, 2006, 10:27 am
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby celestina » April 13th, 2012, 8:50 am

Henwife wrote:At the begining of the season fertility can be rather hit and miss. It's always worth putting in far more eggs than you want until fertility is up to around 90%. You can always dispose of the surplus fertile eggs rather than let them go on to hatch. I do this when I'm fertility testing, but once I'm certain that a high %age will be fertile, I can plan for what I expect to hatch.


Thank you, that's encouraging... perhaps my boy is not up to speed yet and needs a couple more weeks....I was also worried about discarding partly developed eggs so that's good... thank you.
My little ones are pekins in lavender, lavender cuckoo, lemon cuckoo, blue millies and black mottled.
User avatar
celestina
Registered User
 
Posts: 449
Joined: November 5th, 2011, 11:52 am
Location: Monmouthshire

Re: candling - air sac growing but...?

Unread postby Crepe Lady » April 13th, 2012, 11:30 pm

It could be your girls that are lagging behind in the the fertility stakes. I noticed that some of my pure breed girls have been a bit lacking in the fertility stakes until recently but the boy they are in with was definitely fertile as the little warren that I put in with them had fertilised all her eggs and I have hatched some hybrids from them (I put her in to avoid him damaging the other two pure breeds with his treading). However, just the last couple of weeks the p/b girls' eggs are now fertile. Yey!
VERY mixed flock! Silver Dorking, CLB, Welsummer, LSussex, Araucana, RIR, ex batts to name but a few! Learning all the time!
User avatar
Crepe Lady
Registered User
 
Posts: 656
Joined: June 21st, 2011, 10:35 am
Location: Norfolk


Return to Eggs

Who is online

Users browsing this forum: No registered users and 1 guest

cron