**KAZ** 0 Posted October 24, 2011 Member ID: 1,976 Group: Site Members Followers: 2 Topic Count: 521 Topics Per Day: 0.03 Content Count: 25,294 Content Per Day: 1.28 Reputation: 0 Achievement Points: 152,977 Solved Content: 0 Days Won: 0 Joined: 24/01/06 Status: Offline Last Seen: January 6, 2015 Birthday: 07/01/1956 Share Posted October 24, 2011 (edited) So, I have this large yf grey hen ( bred by forum member Liv ) and she's paired up with a violet spangle cock ( loaned by forum member RobD ) YF grey hens sister was 12th at the Nationals. ............first egg the hen laid off the perch, second egg the same. Then I cut a larger hole in the nestbox as she was so big it seemed she wasnt happy going into the nestbox ( if she could fit ) Next egg was huge !! one inch long, like two eggs in a row. I thought fluke, a little weird and most likely a double yolker ...and today she laid her next egg... another one exactly the same ...another one inch long egg, same shape and size and another double yolker So here's a picture of the two D.Y. eggs next to a normal sized egg Both the same size and shape as I said and both double yolk eggs Candling ( note the two yolks showing in each of two eggs ) So, possibility of twins...............Most twins never survive as they run out of growing space. Twins are rare, so we dont get our hopes up for twins. I have had twins make it to hatching and beyond before http://forums.budgiebreeders.asn.au/index.php?showtopic=14683&hl=twins Other double yolkers I have had These are twins that didnt make it to hatching and another Note in the photo just above this the chicks were beginning to become deformed due to lack of space in the egg. so the upshot of all this is........ TWINS rarely make it to hatching. Time will tell with these eggs. ADDITIONAL INFO provided by forum member Dean_NZ I think it's even more amazing when you know how budgies produce eggs. To save me writing it out, here is a quote: Most birds have only one ovary and one oviduct. In early stages of embryonic development, each female bird has two ovaries; only the left one develops into a functional organ. In some birds, such as hawks, the right ovary and oviduct usually develop. A mature ovary looks like a cluster of grapes. and may contain up to 4,000 small ova which can develop into mature ova. With fertilization, the ovum (egg) becomes a developing embryo The embryo passes through the oviduct; typically takes about 24 hours (for passerines & most other birds) The demand for calcium to make the egg shell is very high, and so the circulating levels of blood calcium in birds are greatly elevated compared to mammals, typically twice as much. Source: Avian Reproduction Here is a picture of the ovary which DOES explain visually how a double yolker would be possible (if two yolk 'buds' developed and released simultaneously instead of maturing one after the other). As you can see - the yolk is fertilised well before the egg begins even forming: The process of encasing this yolk once released (ovulation) is here: Here is some more info: DOUBLE YOLK EGGS: Double Yolkers appear when ovulation occurs too rapidly, or when one yolk somehow gets "lost" and is joined by the next yolk. Double yolkers may be by a pullet whose productive cycle is not yet well synchronized. They're occasionally laid by a heavy-breed hen, often as an inherited trait. Source: Poultry help website Because of the internal changes to the layout of the air sack etc and the lack of space, double yolkers rarely hatch successfully. I know of a few that were fertile, but died when they ran out of space, or perhaps the movement of one chick disrupted the yolk/amniotic sac of the other chick and killed it etc. Also, they are twins, but they will be fraternal twins not identical Fraternal means they shared an egg but are from different embryos. Edited February 9, 2012 by **KAZ** Link to comment
renee 0 Posted October 24, 2011 Member ID: 4,388 Group: Site Members Followers: 0 Topic Count: 75 Topics Per Day: 0.00 Content Count: 2,462 Content Per Day: 0.12 Reputation: 0 Achievement Points: 13,420 Solved Content: 0 Days Won: 0 Joined: 28/05/08 Status: Offline Last Seen: February 28, 2012 Share Posted October 24, 2011 Wow, thanks for the photos Kaz. Funnily enough I had quite a number of eggs like that this year and a few had air bubbles in them as well. I didn't candle them but just chucked them. Next time if I get any more I will candle. Link to comment
corzstunt 0 Posted October 24, 2011 Member ID: 6,891 Group: Site Members Followers: 0 Topic Count: 19 Topics Per Day: 0.00 Content Count: 132 Content Per Day: 0.01 Reputation: 0 Achievement Points: 880 Solved Content: 0 Days Won: 0 Joined: 31/08/11 Status: Offline Last Seen: May 21, 2012 Birthday: 19/11/1998 Share Posted October 24, 2011 Gosh Kaz those eggs are HUGE!! Hope they hatch for you, i,d love to see the chicks, the parents look nice so the chicks should be too, would be a nice clutch if she continues to lay Link to comment
**KAZ** 0 Posted October 25, 2011 Member ID: 1,976 Group: Site Members Followers: 2 Topic Count: 521 Topics Per Day: 0.03 Content Count: 25,294 Content Per Day: 1.28 Reputation: 0 Achievement Points: 152,977 Solved Content: 0 Days Won: 0 Joined: 24/01/06 Status: Offline Last Seen: January 6, 2015 Birthday: 07/01/1956 Author Share Posted October 25, 2011 Gosh Kaz those eggs are HUGE!! Hope they hatch for you, i,d love to see the chicks, the parents look nice so the chicks should be too, would be a nice clutch if she continues to lay They are bigger than most of my past twin eggs Link to comment
splat 0 Posted October 25, 2011 Member ID: 3,340 Group: Site Members Followers: 0 Topic Count: 202 Topics Per Day: 0.01 Content Count: 4,891 Content Per Day: 0.25 Reputation: 0 Achievement Points: 27,770 Solved Content: 0 Days Won: 0 Joined: 17/04/07 Status: Offline Last Seen: April 19, 2014 Birthday: 13/05/1958 Share Posted October 25, 2011 I have had the same, long like those and they have been fertile but seem to be dead in shell at hatching time. I have one at the moment fertile but hasn't hatched yet and I don't think it will. Link to comment
robyn 0 Posted October 25, 2011 Member ID: 5,241 Group: Site Members Followers: 0 Topic Count: 86 Topics Per Day: 0.00 Content Count: 1,887 Content Per Day: 0.10 Reputation: 0 Achievement Points: 10,750 Solved Content: 0 Days Won: 0 Joined: 25/04/09 Status: Offline Last Seen: June 19, 2018 Birthday: 21/12/1946 Share Posted October 25, 2011 Maybe the elongated shape of the egg may give more room for each embryo to develop. Fingers crossed for some chicks at least Kaz. Link to comment
dillster 0 Posted October 26, 2011 Member ID: 6,849 Group: Site Members Followers: 0 Topic Count: 33 Topics Per Day: 0.01 Content Count: 268 Content Per Day: 0.06 Reputation: 0 Achievement Points: 1,815 Solved Content: 0 Days Won: 0 Joined: 03/08/11 Status: Offline Last Seen: August 27, 2017 Birthday: 05/05/1999 Share Posted October 26, 2011 wow where did you get your candaler from thanks Link to comment
**KAZ** 0 Posted October 28, 2011 Member ID: 1,976 Group: Site Members Followers: 2 Topic Count: 521 Topics Per Day: 0.03 Content Count: 25,294 Content Per Day: 1.28 Reputation: 0 Achievement Points: 152,977 Solved Content: 0 Days Won: 0 Joined: 24/01/06 Status: Offline Last Seen: January 6, 2015 Birthday: 07/01/1956 Author Share Posted October 28, 2011 Third egg is a normal sized egg..........thank goodness wow where did you get your candaler from thanks our budgie club sells them for $12 Link to comment
dillster 0 Posted October 28, 2011 Member ID: 6,849 Group: Site Members Followers: 0 Topic Count: 33 Topics Per Day: 0.01 Content Count: 268 Content Per Day: 0.06 Reputation: 0 Achievement Points: 1,815 Solved Content: 0 Days Won: 0 Joined: 03/08/11 Status: Offline Last Seen: August 27, 2017 Birthday: 05/05/1999 Share Posted October 28, 2011 wow cheap Link to comment
**KAZ** 0 Posted October 28, 2011 Member ID: 1,976 Group: Site Members Followers: 2 Topic Count: 521 Topics Per Day: 0.03 Content Count: 25,294 Content Per Day: 1.28 Reputation: 0 Achievement Points: 152,977 Solved Content: 0 Days Won: 0 Joined: 24/01/06 Status: Offline Last Seen: January 6, 2015 Birthday: 07/01/1956 Author Share Posted October 28, 2011 wow cheap Yep, its the replacement batteries that cost Link to comment
Amy S 0 Posted October 28, 2011 Member ID: 5,666 Group: Site Members Followers: 0 Topic Count: 16 Topics Per Day: 0.00 Content Count: 601 Content Per Day: 0.03 Reputation: 0 Achievement Points: 3,375 Solved Content: 0 Days Won: 0 Joined: 15/10/09 Status: Offline Last Seen: May 1, 2022 Birthday: 23/04/1982 Share Posted October 28, 2011 Gosh Kaz, those are whoppers aren't they?! I'm surprised she managed to have them inside without causing issues! Good luck with them! xoxox Link to comment
robyn 0 Posted November 8, 2011 Member ID: 5,241 Group: Site Members Followers: 0 Topic Count: 86 Topics Per Day: 0.00 Content Count: 1,887 Content Per Day: 0.10 Reputation: 0 Achievement Points: 10,750 Solved Content: 0 Days Won: 0 Joined: 25/04/09 Status: Offline Last Seen: June 19, 2018 Birthday: 21/12/1946 Share Posted November 8, 2011 (edited) HI Kaz, any update on double yolkers? Have you candled them yet? P.s just checked date they would be nearly ready to hatch if they were fertile. Edited November 8, 2011 by robyn Link to comment
**KAZ** 0 Posted November 9, 2011 Member ID: 1,976 Group: Site Members Followers: 2 Topic Count: 521 Topics Per Day: 0.03 Content Count: 25,294 Content Per Day: 1.28 Reputation: 0 Achievement Points: 152,977 Solved Content: 0 Days Won: 0 Joined: 24/01/06 Status: Offline Last Seen: January 6, 2015 Birthday: 07/01/1956 Author Share Posted November 9, 2011 No fertility in this nest Link to comment
robyn 0 Posted November 9, 2011 Member ID: 5,241 Group: Site Members Followers: 0 Topic Count: 86 Topics Per Day: 0.00 Content Count: 1,887 Content Per Day: 0.10 Reputation: 0 Achievement Points: 10,750 Solved Content: 0 Days Won: 0 Joined: 25/04/09 Status: Offline Last Seen: June 19, 2018 Birthday: 21/12/1946 Share Posted November 9, 2011 That's a shame Kaz, could have been interesting. Link to comment
~ Charly ~ 0 Posted November 9, 2011 Member ID: 6,913 Group: Site Members Followers: 0 Topic Count: 11 Topics Per Day: 0.00 Content Count: 44 Content Per Day: 0.00 Reputation: 0 Achievement Points: 350 Solved Content: 0 Days Won: 0 Joined: 20/09/11 Status: Offline Last Seen: January 10, 2012 Birthday: 24/05/2000 Share Posted November 9, 2011 Aww ... It would have been nice to see what the turn out was if they were to hatch. But I guess no one can change anything now can they ? Sigh ... Link to comment
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