"A double-yolk or a triple-yolk egg is formed when two or three yolks are released too close to each other."
A double-yolked or triple-yolked egg occurs when two egg yolks are released into a hen's oviduct too close together and end up encased within the same shell.
How Many Yolks Can An Egg Have At Once? People have discovered eggs with three or four yolks, although those odds are even slimmer than those of a double yolk. The world record for the most yolks inside one eggshell is NINE. That's right — nine yolks inside one eggshell.
Ten Yolk Eggs (十黄卵 Jū ki Tamago) are laid by Ten-Feathered Giant Chickens and each egg contains ten yolks. They are an incredibly rare ingredient as Ten-Feathered Giant Chickens only lay them once in their entire life and only under special circumstances.
It turns out that doubles turn out more frequently among young hens than older birds, and that flocks of hens tend to be the same age. The chance of a young hen laying a double-yolked egg are roughly 1:30. So, three in a row would calculate the odds at one in 27,000.
Double yolks aren't that rare but triple yolks and above are few and far between! Even more rare is an egg with more than 2 yolks. Triple yolkers occur from time to time, and in fact, it's possible to get more yolks in an egg. The most yolks ever found in an egg was 11.
What causes eggs with double yolks? It is true that eggs with two yolks are fairly rare: you might find them in 1 of every 1,000 eggs. These eggs typically come from our younger hens whose bodies are still just learning how to lay.
The most yolks ever found in one egg is nine. That's a mighty big omelet. Conversely, there are also yolkless eggs, which are called dwarf or wine eggs. Those are usually the first eggs laid by very young hens.
When two chicks hatch from the same egg, the egg usually has two yolks. Usually, one embryo out competes the other and only one chick survives to hatch. Many time both embryos die before hatch.
And, according to the Guinness World Records, the world's largest chicken egg, which was nine inches in diameter and had five yolks. Guinness World Records aside, the greatest number of yolks found in a single chicken egg is said to be nine. Yep, nine yolks in one egg. Must have been quite the omelet.
The British Egg Information Service estimates a double yolk to happen once in every 1,000 eggs, and a triple yolk to happen once in every in 25 million eggs. There are no official odds for four yolks.
In a mature hen, a yolkless egg is unlikely, but can occur if a bit of reproductive tissue breaks away, stimulating the egg-producing glands to treat it as a yolk and wrap it in albumen, membranes and a shell as it travels through the egg tube.
According to Mashable, getting 12 double-yolk eggs in a row is super unlikely. The odds of getting just one double-yolked egg is one in 1,000, six in a row is one in a quintillion.
Why don't they sell double yolk eggs? Many poultry farms remove double yolk eggs and don't sell them because health-conscious consumers are becoming more averse to cholesterol-packed foods. As a result, some farms actually package double yolk eggs and sell them separately.
And as rare as double-yolk eggs are, it's possible to have triple or quadruple-yolk eggs, and the likelihood of each additional yolk becomes exponentially smaller. The Daily Mail says that according to the British Egg Information Service, the chances of getting a triple-yolk egg are 1 in 25 million.
According to the British Egg Information Service, one in every thousand eggs on average is a double-yolker while the odds of discovering a quadruple-yolker are 11 billion to one.
The odds of finding one of the these scarce eggs is said to be 1,000 to one, so theoretically the odds on finding ten in a row is 1,000,000,000,000,000,000,000,000,000,000 - or a quintillion - to one. Dad-of-two John, said: “When I got one double yolk, I was quite surprised because I had never see one before.
Monoamniotic-monochorionic Twins
This is the rarest type of twin, and it means a riskier pregnancy as the babies can get tangled in their own umbilical cords. If you have monoamniotic-monochorionic twins, your healthcare provider will monitor your pregnancy closely.
Can you hatch double yolked eggs? Yes, it is possible to hatch two chicks from the same egg if it contains two yolks. If this succeeds, the chicks are fraternal twins. However, the chances of success are slim because only one embryo will fully develop in most cases.
Guinea fowl eggs are rare because these birds only lay about 60 eggs each year. Because of its rarity, a guinea fowl egg is a tasty treat in certain parts of the world. A guinea hen egg has a thick shell that's the color of oatmeal with speckles of brown.
So, ignoring all other factors, the chances of getting four double-yolk eggs in a row from a single carton should be (1/1,000) x (1/1,000) x (1/1,000) x (1/1,000), or one in every trillion. But there are other factors—lots of them. First, double-yolk eggs are usually larger than single-yolk eggs.
Sometimes your double yolkers will have half-size yolks, so two would count as one. But if they are full-size, you'd count them as two separate yolks. For full eggs in a recipe, just go by weight.
Ever cracked into several eggs in your dozen to find double yolks in more than one egg? It might seem like finding a four leaf clover, but there is actually a reason this happens fairly often. By themselves, double yolks are fairly rare – you might find them in 1 of every 1,000 eggs.
But what causes the double yolk? A double yolk occurs in an egg when a chicken releases two yolks into the same shell. Double yolks are usually produced by young chickens. Since their reproductive systems have not fully matured, they periodically release two yolks instead of one.
On that basis we can say that while chance of finding one double-yolk egg may be 1/1000, the chance of finding a second is considerably higher - more like 1/100. And the same goes for the third and fourth eggs.