Fast bake.

[Andy]

Good luck with them all Murray. It will be interesting to know if the early hatchings has any barring on the sex of the youngsters!
I know you can have some control on the sex of tortoises born by the temperature they’re incubated at. At 28c more males, 30c 50:50 mix, at 32c more females. Warmer temperature earlier hatching!
I also know you can determine the sex of calves born by the time of insemination. Inseminating early when coming into heat produces females, later for males. Only a difference of a couple of hours though. Used to get 80% of wanted sex when I was farming. Now though most semen used for insemination is sexed semen.

[Trev]

Interesting and very unusual mate, not something that I ever remember having !!
I've had them a day or 2 early before, usually when the inexperienced hen starts sitting straight away rather than waiting for the second egg, but in those cases the eggs have hatched a couple of days apart and more often than not the second baby never really catches up properly.

[Trev]

Good luck with them all Murray. It will be interesting to know if the early hatchings has any barring on the sex of the youngsters!
I know you can have some control on the sex of tortoises born by the temperature they’re incubated at. At 28c more males, 30c 50:50 mix, at 32c more females. Warmer temperature earlier hatching!
I also know you can determine the sex of calves born by the time of insemination. Inseminating early when coming into heat produces females, later for males. Only a difference of a couple of hours though. Used to get 80% of wanted sex when I was farming. Now though most semen used for insemination is sexed semen.

I never did the temperature thing buy certainly found that inseminating the cow just coming into heat was more likely to produce a female than when they are going off, you had to be spot on target though as I always found AI a little trickier in the early stages than the later ones.

[Andy]

Good luck with them all Murray. It will be interesting to know if the early hatchings has any barring on the sex of the youngsters!
I know you can have some control on the sex of tortoises born by the temperature they’re incubated at. At 28c more males, 30c 50:50 mix, at 32c more females. Warmer temperature earlier hatching!
I also know you can determine the sex of calves born by the time of insemination. Inseminating early when coming into heat produces females, later for males. Only a difference of a couple of hours though. Used to get 80% of wanted sex when I was farming. Now though most semen used for insemination is sexed semen.

I never did the temperature thing buy certainly found that inseminating the cow just coming into heat was more likely to produce a female than when they are going off, you had to be spot on target though as I always found AI a little trickier in the early stages than the later ones.

Yes Trev it was more difficult inseminating just as the cows are coming into heat as the uterus is much less ridged and harder to get through. The reasoning behind the sexing is because the female sperm is slower but lives longer than the male sperm. So inseminating just before ovulation means that by the time the cow ovulates most of the male sperm has died whilst the female sperm is still alive and active. Inseminating as or while the cow is ovulating the male sperm is more likely to get to the egg first.

[Murray]

Good luck with them all Murray. It will be interesting to know if the early hatchings has any barring on the sex of the youngsters!
I know you can have some control on the sex of tortoises born by the temperature they’re incubated at. At 28c more males, 30c 50:50 mix, at 32c more females. Warmer temperature earlier hatching!
I also know you can determine the sex of calves born by the time of insemination. Inseminating early when coming into heat produces females, later for males. Only a difference of a couple of hours though. Used to get 80% of wanted sex when I was farming. Now though most semen used for insemination is sexed semen.

That is an interesting idea, Andy, but I think the sex of the youngsters is, like mammals; determined at fertilization. It is the reverse of mammals, where the father either gives an X Chromosome for a male or a Y Chromosome for a female. Male birds have two Z Chromosomes and a female bird has a Z and a W Chromosome. So the egg determines the sex of the offspring, not the sperm.
In any case the embryo is male or female before any outside influences like high incubation temperatures have an effect. The ones that hatch early don't seem to be any different, they just pop out early!

[Diamond Dave]

OMG, didn't have a clue about any of that!!
Every day is a school day on this site.

[Murray]

It's interesting, if you are interested in that sort of thing. It doesn't make you a better pigeon fancier.
I think I am a good pigeon fancier because pigeons get excited when I appear near the loft, and walk toward me in the loft. Other blokes, as soon as they arrive, the birds are off in the other direction.
It's not what you know, it's what you do and how you act.
I love my birds and they sense it.
You can't learn that out of a book.

[Andy]

It's interesting, if you are interested in that sort of thing. It doesn't make you a better pigeon fancier.
I think I am a good pigeon fancier because pigeons get excited when I appear near the loft, and walk toward me in the loft. Other blokes, as soon as they arrive, the birds are off in the other direction.
It's not what you know, it's what you do and how you act.
I love my birds and they sense it.
You can't learn that out of a book.

Very true Murray. Good stockmanship is something that you either have or don’t. The birds sense how you are around them. Mine are all very tame. I can’t abide a wild pigeon. Mine are even worse with Roxanna. They go made when she goes to feed the wild birds and will pace up and down the fronts. She then goes in and gives them all a few sunflower hearts. She looks like the bird lady in Mary Poppins lol . If they’re out they will land on her in the garden.

[Murray]

It's interesting, if you are interested in that sort of thing. It doesn't make you a better pigeon fancier.
I think I am a good pigeon fancier because pigeons get excited when I appear near the loft, and walk toward me in the loft. Other blokes, as soon as they arrive, the birds are off in the other direction.
It's not what you know, it's what you do and how you act.
I love my birds and they sense it.
You can't learn that out of a book.

Very true Murray. Good stockmanship is something that you either have or don’t. The birds sense how you are around them. Mine are all very tame. I can’t abide a wild pigeon. Mine are even worse with Roxanna. They go made when she goes to feed the wild birds and will pace up and down the fronts. She then goes in and gives them all a few sunflower hearts. She looks like the bird lady in Mary Poppins lol . If they’re out they will land on her in the garden.

[Murray]

I had a pair hatch two days ago, and another pair last night.

Both were 17 days.

I've got 3 more pairs on eggs. These will have to be the last ones. It's getting very late. I'll start putting pot eggs under them.