Domestic Chickenニワトリ

Gallus gallusNE— Not Evaluated

The domestic chicken is the world's most numerous bird, descended from the red junglefowl of Southeast Asia and domesticated roughly 8,000 years ago. With a global population exceeding 26 billion, it is raised worldwide for eggs and meat and remains one of humanity's most economically important animals.

Domestic Chicken (reference photo)
Photo: Dr. Raju Kasambe / CC BY-SA 4.0 / Source / cropped

Species Data

Classification
Galliformes / Phasianidae Source
Distribution
Descended from the red junglefowl of Southeast Asia, domesticated roughly 8,000 years ago; now raised worldwide. Source

Did You Know?

  • Its wild ancestor, the red junglefowl, lays only a few dozen eggs per year, but selective breeding has allowed modern egg-laying breeds to produce around 320 eggs annually—with one authenticated record of 371 eggs in 364 days. Source
  • Chickens can perceive UV-A light down to about 350 nm, giving them a visual range beyond human sight, which is why lighting conditions matter greatly for their welfare. Source

Where to See This Species

4 facilities · 0 individuals

市川市動植物園 (Ichikawashi Doushokubutsuen)Chiba所在地は千葉県市川市大町284番地1。

市川市動植物園のWikipedia記事に飼育種として記載 Source

東京都恩賜上野動物園 (Toukyoutoonshiueno Doubutsuen)TokyoOpened in 1882

東京都恩賜上野動物園のWikipedia記事に飼育種として記載 Source

姫路市立動物園 (Himeji Shiritsu Doubutsuen)HyogoOpened in 1951

姫路市立動物園のWikipedia記事に飼育種として記載 Source

富山市ファミリーパーク (Toyamashifamiri Park)ToyamaOpened in 1984

富山市ファミリーパークのWikipedia記事に飼育種として記載 Source

Conservation Story

Conservation Status

家畜化種のためIUCN評価の対象外です。

Habitat

世界各地で人の管理下に飼育されています。

Threats

  • 不適切な飼育
  • 家禽の疾病

Conservation & Breeding Efforts

  • 適正飼養と衛生管理
  • 家禽と野生鳥類の違いを伝える教育展示

Sources

ja.wikipedia.org

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FAQ

What is the wild ancestor of the domestic chicken?
It descends from the red junglefowl (Gallus gallus) of Southeast Asia, domesticated approximately 8,000 years ago. Source
How many chickens are there in the world?
The global chicken population exceeded 26.5 billion as of 2023, making it by far the most numerous bird on Earth. Source

Source: ja.wikipedia.org en.wikipedia.org