Zebra Eggs Kicked out Of Cave are they fertile

doctorzeb · Post by **doctorzeb** » 22 Jul 2003, 10:34

Hey guys, just as suspected, the eggs were out of the cave this morning.

I've put them in an aereated breeder just in case but I'm not sure if there fertile or not. Three look possible. any ideas.

cant get the image thing to work so here's the link
http://www.qems.biz/zebraeggs.htm

Does the white indicate fertility, as you can see there is only one that is white.

I have them next to an air stone. Don't know if the male has any left!

cheers rob

Post by **Silurus** » 22 Jul 2003, 10:45

Very likely not. The white in the egg means that the egg protein is starting to break down.

doctorzeb · Post by **doctorzeb** » 22 Jul 2003, 10:50

Cheers Silirius

It was kind of what I was expecting as it was her first spawn, but you can still dream!!!!!!!!!!!!!!!!!!!!!!!!!!!!

You never know, maybe he's got a couple in his cave!!!

cheers Rob

Yann · Post by **Yann** » 22 Jul 2003, 10:53

Hi!

Before throwing away the 3 non white, wait 2-3 days if they turn out like the forth one then you can throw them away...if not...well it means that they are good...

But even if it did not work this time, don't worry...they will get back to it...if infertility persists, I would worry about the capacity of the male to fertilize the eggs...but we are not there yet...they need 1-2 spawns as practice before doing a correct one...

Cheers
Yann

doctorzeb · Post by **doctorzeb** » 22 Jul 2003, 11:15

cheers yann.

I'll just have to play barry white in the living room, dim the lights, and get out some sexy insence. see if i can start up some more of that good old zebra luvin!!!!!!!!!!!!!!!!!!!

cheers, and thanks for all the help and advice.

talk you later

rob

zebra046 · Post by **zebra046** » 23 Jul 2003, 04:21

the other three light colored eggs are fertile give them a week they might hatch

doctorzeb · Post by **doctorzeb** » 23 Jul 2003, 10:32

Hi

Another update.

One of the three eggs has turned mouldy, and I think the other two are on their way. The male however is still sitting in the cave with 2 eggs. is there a chance he's kicked out the bad ones and kept the good ones.

cheers

rob

Yann · Post by **Yann** » 23 Jul 2003, 10:52

Hi!

Usually this should not happen, he would have eaten the bad ones, instead of kicking them out!!!
Cheers
Yann

doctorzeb · Post by **doctorzeb** » 23 Jul 2003, 15:29

Yann

Any ideas why he would have kicked them out, he is still guarding a couple and from what I can see they are not mouldy. As you will see sirius thinks that when the white dot appears, this means they are unfertile. If they are anything like cory eggs that sounds right.

I'm not holding my breath for any of these to hatch, but hopefully it's just a trial run, and not sterility.

cheers
rob

Yann · Post by **Yann** » 23 Jul 2003, 17:22

Hi!

He possibly could have kick the eggs, while trying to block the entrance of the cave with its body.
Other possibilites, the female ( or another one) tried to lay some more eggs and several got kick out during the spawn...

Silurus was talking about the eggs becoming all white, but the other eggs did look like they were rather "fresh" ( not much old between the egg deposite and the kicking out...because it has not much of that yellow colour and the little white "dot" is normal at this stage...
How are the remaining 2 eggs doing?

Cheers
Yann

doctorzeb · Post by **doctorzeb** » 23 Jul 2003, 17:51

The remaining two eggs out of the cave have gone mouldy.

But he is in the cave with two eggs remaining. they look OK, no sign of mould.

I'll just have to wait and see.

cheers Rob

pturley · Post by **pturley** » 23 Jul 2003, 17:54

QUOTE
"Any ideas why he would have kicked them out, he is still guarding a couple and from what I can see they are not mouldy. As you will see sirius thinks that when the white dot appears, this means they are unfertile. If they are anything like cory eggs that sounds right.
I'm not holding my breath for any of these to hatch, but hopefully it's just a trial run, and not sterility.
cheers
rob"
End Quote:

Rob,
The little white dot you are refering to is the animal pole of the egg and actually indicates the eggs are fertilized, not infertile. This dot is actually the larva forming attached to the yolk. It is always on the top 1/3 of the egg, never on the bottom. So congradulations are in order (unless of course, you decided to discard the three other eggs). If the eggs are completely opaque white, they are of course bad at this point.

BTW: You can see this one nearly any fish egg (often requiring magnification depending on egg size).

The classic biology text example is Xenopus laevius (African Clawed Frog) eggs as the animal pole is pigmented, while the vegetable pole (yolk) is not.

Sincerely,
Paul E. Turley

doctorzeb · Post by **doctorzeb** » 23 Jul 2003, 17:58

cheers pturly

The eggs I have in the breeding tank are now white in color, and look mouldy . I'll leave them for a day anyway. Hopefully there is still a chance for the 1 or 2 in the cave with the male. Thanks again

If they have turned mouldy, after fertilisation, could this mean my water is too hard?

Or could this just have happened from them being kicked around the tank.

I'll try and post a picture later once my camera has charged up again.

cheers rob

pturley · Post by **pturley** » 23 Jul 2003, 18:04

More likely low oxygen levels or lack of attention from the male. Ancistrine Loricariids are quite active parents during brooding. They move allot of water by constantly fanning the eggs and frequently mouth the mass (possibly cleaning them). They also, per Yann's comment, eat eggs that have gone bad during the incubation.

If the animal pole appeared, the eggs were fertile. Why they died is open to conjecture.

Sincerely,
Paul E. Turley

doctorzeb · Post by **doctorzeb** » 23 Jul 2003, 18:15

Cheers Paul

My god, I've spent 3 years building up a community of Zebras for breeding, this is so exciting. Hopefully it isn't the water parameters. If the eggs were floating around the tank, then that could be why they went mouldy, (hopefully). I've just popped down and had another quick look at the male. There only appears to be one egg, but I think it seems OK.

I suppose for a fist spawn I can't really expect too much.
DO you know of any web resources that will give me good detail on fertilised or unfertilised eggs?

Cheers for the help

rob

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