Question

is there any difference in the nutritional value of fertilized and unfertilized eggs ?
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Answer 1

▪︎As for its nutritional value, the issue whether fertile chicken eggs are healthier than unfertilized eggs remains up to this day a highly debatable one.

▪︎If you want to get the most of the egg's nutrients, go for the freshest eggs available.

▪︎The longer eggs are kept, the more their protein content gets lost.

Answer 2

Question:

Is there any difference in the nutritional value of fertilized and unfertilized eggs ?

Answer:

• Hens will lay eggs regardless of whether or not they are being kept in the company of a rooster.

• Your laying hen's body is naturally intended to produce an egg once every 24 to 27 hours and it will form the egg regardless of whether the egg is actively fertilized during its formation.

• Humans can, however, ‘trick’ chickens into laying despite the limited sunlight by adding artificial light (such as a light bulb) to the coop.

• The laying process starts when light entering the hen’s eye activates a photosensitive gland (the pineal gland) positioned nearby.

• Once stimulated, this gland triggers a process that leads to the release of an egg, or oocyte, from the hen’s ovary.

• An egg can still be laid whether or not it has been fertilised by a male, but only fertilised eggs can develop into chicks.

• The orifice through which the egg leaves the hen is called the vent.

• Though this hole also forms the outlet for waste by-products (ie urine and faeces), there is a valve called the cloaca which separates the oviduct from the intestine.

• The difference between fertilized and unfertilized eggs comes down to whether a rooster has been involved or not.

• Hens do not need a rooster to lay an egg; they do so (almost daily) on their own simply according to light patterns.

• However, if a rooster does mate with a hen, the eggs she produces are fertilized and, under the right incubation conditions, can bear chicks.

• No rooster means zero possibility of the egg ever becoming anything more than that.

 

• When fertilized eggs are sold for consumption, there is no danger of eating a developing embryo. All eggs sold as food must be refrigerated, a process that halts any growth inside the shell.

• Also, the interior of any egg intended to be sold as food must be inspected—accomplished by shining a bright light through the shell (called candling)—which highlights any irregularities, such as a developing chick.

• These regulations hold true whether the eggs are intended for a large chain like Safeway or for the farmers’ market.

• Eggs with irregularities never make it to retail and are destroyed (except for that one time).

• Nutritionally, fertilized and unfertilized eggs are the same.

• They also taste the same, If you find a blood spot inside an egg, it doesn’t mean that egg was fertile either.

• A blood vessel and rupture at any point in a hen’s reproductive system as a result of a vitamin A deficiency, genetics, or some random occurance.

• People may think so because fertile eggs develop veins around day 4 of incubation, but it doesn’t look like a blood spot.

 

• Most eggs sold in the grocery store are produced by hens in flocks with no roosters.

• As a result, the eggs are infertile unless otherwise indicated.

• Nutritionally, there are no differences between fertilized and unfertilized eggs.

• There are also no differences in safety for consumption provided the eggs have been handled and stored properly.

• As long as the fertile eggs are stored below 50 ºF (most refrigerators are at 40 ºF) no embryo development will occur.