All you do is make sure it is not Stinky and if it is then it is dead and if it is a soft shell,it is also dead. If you feel the egg and it is really hard and hollow it is alive.To also make sure the egg is alive,you take like a long plastic cup or something and poor alot of COLD water in it and drop the egg carefully in the cup and if the egg sinks to the bottom of the cup,it is not rotton and it can also be alive,and if it floats to the top,it is dead and rotton:(
It's generally best to avoid touching duck eggs, as the oils and bacteria on your hands can potentially harm the developing embryos. It's important to practice caution and gentle handling if necessary.
A week after your duck lays her eggs, you can take them in the dark and quickly flash them with a flashlight. If they are alive then you will see a dark area inside an otherwise clear egg. "At about seven days after setting, candle the eggs and remove any eggs that are infertile (clear) or have dead germ (cloudy)"(Duckhealth.com). Info taken from: http://www.duckhealth.com/hatcduck.html
It would still be viable but the crack in the egg will probably render it useless for hatching. Cracks in eggs allow bacteria and disease to enter the fertilized eggs and effect the viability. Most cracked eggs do not make it to full hatch.
I have no idea and why would you want to know that?
As long as the eggs stay above 72 degrees, will remain alive and fertile for almost a week. Ducks don't seat like hens they tend to be on and off more and will wait until they have four or more eggs before they start to sit. More importantly they need a mate and must have chosen one too. You'll know when this has happened as the male duck will protect her. Watch the male ducks as they tend to eat the ducklings so make sure that there is plenty of food on hand.
there are ducks in place of the eggs
They quack
Most duck eggs are larger than a chicken egg. PoultryTalk's Response: Smell the egg, duck eggs have a scent chicken eggs dont. Also most are glossy and sometimes they are a greenish color. Also duck eggs are usually thicker.
Veg
i don't know maybe i should do a test
a duck doen't get pregnant they lay eggs and there is no way you can tell until she lays the egg
It's generally best to avoid touching duck eggs, as the oils and bacteria on your hands can potentially harm the developing embryos. It's important to practice caution and gentle handling if necessary.
Why did the duck go to jail? Because the police found out he was dealing quack.
A week after your duck lays her eggs, you can take them in the dark and quickly flash them with a flashlight. If they are alive then you will see a dark area inside an otherwise clear egg. "At about seven days after setting, candle the eggs and remove any eggs that are infertile (clear) or have dead germ (cloudy)"(Duckhealth.com). Info taken from: http://www.duckhealth.com/hatcduck.html
It would still be viable but the crack in the egg will probably render it useless for hatching. Cracks in eggs allow bacteria and disease to enter the fertilized eggs and effect the viability. Most cracked eggs do not make it to full hatch.
I have no idea and why would you want to know that?
Most rural farms with a sign "fresh eggs" will be selling fertilized eggs. Small farms almost always keep a rooster in the flock. You can check with any local feed & grain distributor and they will know who in the area sells fresh eggs.