Translation guide
A person or entity that breeds animals or plants. In Japanese, the term depends on what is being bred and the context.
A person who breeds animals as a profession, such as dogs, cats, or livestock.
The most common and direct loanword for a professional animal breeder, especially for pets like dogs and cats.
彼女は犬のブリーダーです。
She is a dog breeder.
A more formal term for a breeder, emphasizing the act of breeding. Used for various animals.
彼は馬の繁殖家として有名だ。
He is famous as a horse breeder.
Specifically refers to a livestock breeder or farmer. Not used for pets.
畜産家は牛の品種改良に取り組んでいる。
The livestock breeder is working on improving cattle breeds.
A person who breeds new varieties of plants, such as flowers or crops.
The standard term for a plant breeder, especially in agriculture or horticulture.
彼はバラの育種家です。
He is a rose breeder.
Also used for plant breeders, though less common than for animals. Often in casual contexts.
Someone who breeds animals or plants as a hobby, not necessarily for profit.
A descriptive phrase meaning 'a person who breeds as a hobby'. Natural when specifying it's not a profession.
彼は趣味で犬を繁殖させている人です。
He is a hobby dog breeder.
Means 'enthusiast' or 'fancier'. Often combined with the animal/plant type to imply breeding as a hobby.
彼は熱帯魚の愛好家で、自宅で繁殖させている。
He is a tropical fish enthusiast and breeds them at home.
A nuclear reactor that produces more fissile material than it consumes.
The technical term for a breeder reactor.
高速増殖炉の開発が進められている。
Development of fast breeder reactors is underway.
The English word 'breeder' covers many concepts. In Japanese, you must specify what is being bred. Using ブリーダー without context usually implies a pet breeder.
「ブリーダー」と言うと、普通は犬や猫のブリーダーを指します。
When you say 'breeder', it usually refers to a dog or cat breeder.
She is known as a tulip breeder.