Japanese Quail Bird aka Kaadai Eggs, Meat – Health Benefits, Nutrition Facts & Calories

Japanese Quail Bird or Kaadai Eggs, Meat – Health Benefits and Nutrition Facts

Japanese quail

The Japanese quail, a zoological name Coturnix japonica, is a species of Old World quail found in East Asia. First considered a subspecies of the common quail, it was distinguished as its species in 1983. The Japanese quail has played an active role in the lives of humanity since the 12th century and continues to play major roles in industry and scientific research. Where it is found, the species is abundant across most of its range. Now let us do a short tour about Japanese quail and its medical benefits.

Quail Facts

Quails are very small birds that belong to the pheasant and partridge species. They have a distinctive body shape with a small stocky body and long pointed wings. There are around 20 different species of quail found around the world, and 70 domestic quails are kept as poultry birds.

Golden speckled is just one of the many names for this color type of Coturnix Japonica

Difference between Common Quail and Normal Quail

For example, wild Japanese quail lay 7 to 14 eggs per year, whereas domestic quail can lay about 280 eggs per year under normal feeding conditions. Besides, wild quail are small and have a late sexual maturity, low hatching rate, and survival rate compared with domestic quail.

How do we Identify Male/ Female?

The difference between male and female is, Females, weigh slightly more than males, generally between 4 to 5 1/2 ounces. Males weigh in at 3 1/2 to 5 ounces. Look at the coloring of the quail’s feathers. The male quail is much more brightly colored than the female

Medical Benefits of Japanese Quail

  • Vitamin-rich source of alternative animal proteins that are low in fat content, plus eggs that contain 2.47 percent less fat than chicken eggs, all working together to boost the human immune system
  • High levels of phosphorous, iron and vitamins A, B1, and B2 all mean that quail fits nicely into society’s definition of what constitutes healthy diets and lifestyles.
  • They are hardy and generally disease-free.
  • They are small – approximately five quail can be raised in the same space required for one chicken.
  • Comparatively lower feed costs are associated with quail than with chickens or other poultry birds.

Japanese Quail Egg – Is Kaadai Bird Egg good for Baby?

  • Quail egg is a miracle food for the growth and development of children of any age. Unlike chicken eggs, the quail shows a lower risk of allergies. They can be smoothly introduced in the child’s menu since the baby age.
  • As the baby starts to consume solid foods, at around nine months, you can introduce egg yolks in its menu, and after one year, you can add the whites in other daily preparations.

    Recommended portions of quail eggs for children:

    1. 9 months – 1 year: 1 yolk per day
    2. 1 – 3 years: 1 quail egg/day (yolk and whites)
    3. 3 – 7 years: 2-3 quail eggs per day
    4. 7 years and above: 3-5 eggs per day.
  • Doctors say that babies who frequently consume quail eggs show 6 times less risk of developing infections.
  • Essential nutrients they contain, quail eggs are considered some of the most powerful foods with immunostimulatory effect.

Comparison of Quail with Chicken

Quail egg is the product of animal with the highest protein content, vitamin and mineral enzymes found in the egg can regulate various body deficiencies, renewing the normal parameters of any human body.

  • In comparison with chicken egg, the quail has a cholesterol level of only 1.4% versus 4%, 3 times less fat, and the yolk contains 23% to 17% protein.
  • In terms of vitamins and minerals are 6 times richer in vitamin B1, 5 times more phosphorus, 5 times more iron, 15 times more vitamin B2, and other allergic substances.
  • All these make the quail egg the only 100% natural product that has only indications and comes without contraindications.

Sensation and Perception

Though there is still much to be understood about the sensation and perception of Coturnix japonica, some have been revealed through various scientific experiments.


Normally, the Japanese quail has been considered to possess an underdeveloped sense of taste, this being evidenced by their inability to distinguish different kinds of carbohydrates presented to them. However, studies have shown that a limited ability to taste is indeed present. Evidence for this includes quail individuals exhibiting preferential choice of sucrose-containing solutions over simple distilled water and the avoidance of salty solutions.


Though the Japanese quail possesses an olfactory epithelium, little is known about its ability to sense smell. Despite this, certain studies have revealed that these birds can detect certain substances using only their sense of smell. For example, they have been reported to be able to detect the presence of certain pesticides, as well as avoid food containing a toxic chemical called lectin, using only the sense of smell.


Through the basolateral conversion of the eyes, the Japanese quail can achieve frontal overlap of the eye fields. Long-distance perception occurs with binocular field accommodation. To maintain focus on a certain object while walking, the quail will exhibit corresponding head movements. The Japanese quail has also been shown to possess color vision, its perception of color being greater than that of form or shape.


Quails produce sound famously known as “wet-my-lips” that they repeat during the evening and can be heard from long distances making them difficult to locate. Not much is known about Coturnix japonica hearing; however, it can distinguish between various human phonetic categories.

Key Facts & Information


  • They have streaked and buffed feathers in either blue, black, brown, cream, or white color.
  • Colors and arrangement of feathers have a scale-like pattern.
  • Quails have long and strong legs that are brown.
  • Their beaks are short, curved, chunky, and black.
  • A quail’s length can only reach 4.5 to 7.8 inches.
  • It weighs 2.4 to 4.9 ounces.
  • Their wingspan can reach up to 32 to 35 centimeters.
  • Although they have long pointed wings, they can fly only short distances.

Habitat and Diet
· Quails live in woodlands, croplands, and open spaces that are covered with bushes such as grasslands and farmlands.
· They originated from North America but can also be found across Europe, Australia, Asia, Africa, and South America.
· Wild Japanese quail species live in Russia, East Asia, and other parts of Africa.
· Quails are ground dwellers.
· Quails are omnivores, although 95% of their diet is composed of plant matter.
· They eat mainly grass seeds and berries.
· Depending on their habitat, they also eat leaves, roots, worms, and some insects such as grasshoppers.
Ecology and Behavior
· Depending on specific species, quails are either active during the day or the night.
· Quails clean their feathers to be free from pests by bathing in the dust.
· Quails are solitary birds but can also spend their time in pairs.
· A group of quails is called a flock, bevy, covey, or queer.
· During mating or winter season, quails live in flocks.
· Quails nest on the ground, preferably in open areas and cereal fields such as wheat lands, cornfields, fallows, and rough grassland.
· Quails start to mate at 2 months old.
· Quails lay around one to 12 eggs, usually 6 eggs, depending on the species.
· Quail eggs have bright colors. Baby quails are called chicks.
· Chicks hatch out of their eggs in less than a month.
· Quails survive 3 to 5 years in the wild.

Normal color Japanese quail egg and white Japanese quail egg

Newly hatched Japanese quail

Japanese quail after 7 days (left) and king quail after 20 days (right)

Quail Farming
· Quails are also kept as poultry or commercial birds in some parts of the world because of their meat and their bright eggs.
· Most commonly kept quails are the Japanese quails, beginning way back the 11th century in Japan.
· Quails are the smallest farm bird weighing only 100 grams.
· 80% of quails are farmed in China.
· The European Union produces 100 million quail per year. A total of ~1.4 billion quails are farmed in a year worldwide.
· Unregulated farming of quails has banned housing systems consisting of battery cages and overcrowded barns that house thousands of quails.
· Quail hens lay eggs at around 7 weeks old. Hens are slaughtered at 8 months old.
· Quails farmed for their meat are slaughtered at 5 weeks old.
Interesting Facts
· Quails produce sound famously known as “wet-my-lips” that they repeat during the evening and can be heard from long distances making them difficult to locate.
· Quail’s colored eggs are considered a fine delicacy and are a staple in luxurious restaurants.
· During the 11th century in Japan, the Japanese quails were originally kept as songs birds.
· Not all quail farms are regulated and are heavily used for commercial businesses.

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