Determination of fertilized eggs is commercially important. For example, in ostrich poultry the benefit of detecting fertilized ostrich eggs allows you to keep them for a generation and sell rest (the unfertilized ones). Also in some scientific research it's important to detect fertilized eggs in oviparous species. How can we separate fertilized eggs from unfertilized eggs in oviparous species like hens or ostrichs? Is it possible now to detect? Which techniques do you suggest for this research? What's your ideal plan for determination?
Hi Habib,
Unfortunately there is no technik capable separating fertile eggs from infertile eggs before incubation start. Mostly it is related to the difficulty to penetrate the egg shell for any type of optical waves without diffusing. But if you want to determine the percentage of fertile eggs before incubation you have to break down a few eggs and analyze the shape of the blastodisc. As you can see in the picture below the fertile egg can be easily distinguished from the infertile one by the formation of area pellucida and area opaca-the first visible sings of developing embryo. In the picture the fertile egg to the right and infertile egg to the left.
Candle/Fertility Test:Place the light beam on the side or preferably on the large end of the egg. The beam will illuminate the contents and allows for observation of the following:
If the egg is fresh, stale, or has blood spots
If there are hairline cracks that will prevent correct incubation
If the egg is fertile
If the egg is developing correctly during incubation
Unfortunately, till today there is no technique to find out whether the egg is fertile or sterile. The one method that Makhsud Tagirov mentioned is also good. i was not aware about that, thanks.
only thing that one can do is incubate the eggs and then candle daily you can see the developing embryo form 2 nd day onward. by day fifth one can definitely tell the condition of the egg.
Thank you
http://www.google.co.in/imgres?hl=en&biw=800&bih=461&tbm=isch&tbnid=dgOn6ViR_ud2nM:&imgrefurl=http://thepoultryguide.com/chicken-egg-candling-guide/&docid=mi3NFB15H4JUwM&imgurl=http://thepoultryguide.com/wp-content/uploads/2013/01/viable-eggs.jpg&w=640&h=480&ei=3VVJUc-FIs7IrQeNioCoBQ&zoom=1&sa=X&ved=0CFgQhBwwAw&ved=1t:3588,r:3,s:0,i:88&iact=rc&dur=692&page=1&tbnh=181&tbnw=200&start=0&ndsp=7&tx=66&ty=98
Indeed very informative. I agree with the answer by Mr. Tagirov. Yes, candling is the only right way to check it. You can make a guess by the behavior of mother animal if at all you have that, as it would take care of fertile egg. May be external appearance of egg - i.e. colour can also help you. Thankyou.
there is not any definite way to determine it. the eggs that are different apparently can without fertilize for example deformation , . . . .one the best way to use of breeder recording and to use light for recognizing. for more information please contact me. [email protected]
try this trick on youtube. My Korean friend told me that you can put lots of tooth picks in the egg yolk without breaking it.
http://www.youtube.com/watch?v=nukUANGQHMA
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