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One view:She will set on them all at first, but if she doesn't feel heat coming from the egg which the growing embryo gives off, she will either throw it out of the nest or eat it. If you keep disturbing her to check, you will run the risk of upsetting her and she will leave the whole nest. Another view:She doesn't know. She will sit on infertile eggs as readily as on fertile ones. In fact, if she is in the mood, she'll sit on Golf balls. Let her set on them for a week and then use a light to check to see if any thing is there.
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14y ago
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15y ago

Outwardly, no - there is no possible way to tell. Altough, ask yourself these questions; * Is your rooster mounting yet? Is he fertile? * How long has it been since my rooster has started mounting? If all else fails, its very easy to find out if your eggs are fertile, or if their not. Simply pick your best eggs out, and start to incubate them. If, when you candle them for the first time, they are clear - then they arent fertile.

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10y ago

Hens do not know if the eggs are fertile or not right at the beginning of the incubation period. However after about two weeks at the earliest a hen will get a rough feeling if the eggs are dead or not. Also when a chick is a day or two from hatching the hen and chicks will communicate to each other through the eggs. So really it's all part of their natural instincts as to whether they know or don't know if the eggs are fertile and quite often there will be atleast two or three infertile eggs.

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Q: How does your hen know the egg is fertile?
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How can you tell if the eggs are fertile?

Do you have a Rooster living with Hens? If so, chances are, yes, the eggs will be fertile. If the hen is brooding, meaning she is sitting on top of the egg to keep it warm, then it's probably fertile, if not, then it's not fertile. In any case should you have a rooster and a hen together, and the hen lays an egg, and it doesn't brood, then you should keep the egg warm. I think to check just hold the egg up to a light lol.


How long is a Hen?

Hens do not get "pregnant" They produce an egg every 24 hours approximately. That egg may or may not be fertile depending on if the hen has been mated with a rooster in the previous 7 days. The hen will produce the egg with or without the roosters involvement.


How many steps does it take to get an egg?

1. The male bird, for example a cock has to mate with a fertile female bird, for example a hen. 2. The sperms of the cock fertilize the egg. Note: There is no requirement for there to be a male for a female hen to lay eggs. There does need to be a male if the egg is to be fertile. 3. The egg grows within the hen. 4. The shell forms over the egg. 5. The hen then sits to lay the egg. 6. The egg comes out of the hens vagina. 7. You get to the hens hideout and hold the warm egg. You got the egg! That is 7 steps. You can further elaborate them to get more steps.


How do you know if there is a chick in a hens egg?

the hen will not leave the egg and the egg will be covered in feathers


Why does the parakeet brakes the egg?

As I'm not an expert but have had many parakeets. If the hen or female broke the shell that is fertile she may be helping the chick to break free. If she did this to an egg that is not fertile, she may have sensed this & wanted to eat the shell & contents. Both are very nutritious providing the hen with much needed calcium. In the wild they may do this to keep predators from going after an egg that's not fertile or even an embryo born dead.


How can you tell a fertile egg when was just laid?

you really cant.. DONT TOUCH THEM. just leave them alone. the mother hen knows if there fertile or not. if there not fertile she'll push them to the side, if they are fertile she will sit on them. but sometimes a pushed aside egg is fertile and also it is always warm as the person said above DON'T TOUCH THEM!!


Why do some eggs laid by chickens end up in the supermarket and others produce chickens?

The eggs we eat, produced by the female hen, are infertile as the hen hasn't mated with the rooster. This means the egg will not hatch. If the hen had mated, the egg would be fertile, and have produced a embyro


How long is a hens pregnancy?

Hens do not get "pregnant" They produce an egg every 24 hours approximately. That egg may or may not be fertile depending on if the hen has been mated with a rooster in the previous 7 days. The hen will produce the egg with or without the roosters involvement.


Is a hen less apt to sit on an unfertilized egg?

No. A broody hen is a broody hen and will sit on golf balls once the urge to nest takes her. Hens do not instinctively know if the eggs they are brooding are fertile or not. Hens in a chicken coop without a rooster among the flock will still go broody.


Why do setting hens shove eggs out of nest?

I have been told that if a egg is not fertile the hen will get rid of any eggs there are not developing...


What is an egg that is not fertile callled?

An egg that has not been fertilized by the rooster's sperm is called an infertile egg. a hen will lay infertile eggs without the assistance of a rooster. Commercial egg layers have never and will never know what a rooster looks like, but they will produce an infertile egg 6 days out of a 7 day week.


Which one is older a 'hen ' or an 'egg'?

A hen is older than an egg. *A hen comes from an egg. Either a hen or an egg can be older than one another.