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B1 verb #6,000 mais comum 9 min de leitura

繁殖する

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Pratique Exemplos Notas e dicas 繁殖する em 30 segundos

Explicação 繁殖する in your Level:

At the A1 level, you don't need to use 'hanshoku suru' often. Instead, you usually use the word 'fueru' (to increase) or 'umareru' (to be born). 'Hanshoku suru' is a difficult word because it uses complex kanji. However, you might see it in a picture book about animals. Think of it as 'making many babies.' For example, 'The rabbits make many babies' is what 'hanshoku suru' means. It is a formal word, so you will hear it on TV news or in school books. If you are talking to a friend, you can just say 'Takusan umareta!' (Many were born!). Remember: this word is for animals and plants, not for people. If you use it for people, it sounds a bit strange and like a science experiment.

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At the A2 level, you can start to understand 'hanshoku suru' when you read about nature or pets. You might hear it at a pet shop or a zoo. It means 'to breed' or 'to multiply.' For example, if you have two hamsters and suddenly you have ten, that is 'hanshoku.' A common phrase is 'hanshoku-ki,' which means 'breeding season.' This is when animals look for partners. You should know that 'hanshoku' is a noun, and 'hanshoku suru' is the verb. It's more formal than 'fueru.' If you use 'hanshoku suru' in a presentation about your favorite animal, your Japanese teacher will be very impressed because it sounds very smart and accurate.

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At the B1 level, '繁殖する' (hanshoku suru) is an important word for discussing environmental issues, biology, and hobbies like gardening or keeping fish. You should understand that it refers to the biological process of a species increasing its population. It is commonly used in the context of 'invasive species' (gairai-shu) that multiply too fast and hurt the environment. You should also be able to use the causative form, '繁殖させる' (hanshoku saseru), which means 'to breed' something intentionally, like a specific type of flower or a rare bird. At this level, you should distinguish 'hanshoku' from 'zoushoku' (proliferation/cell division), noting that 'hanshoku' is generally for whole organisms.

At the B2 level, you should be comfortable using '繁殖する' in academic or professional discussions. You will encounter it in news reports about ecology, agriculture, and public health. For instance, you might discuss how bacteria '繁殖する' in a kitchen if it isn't cleaned properly, or how global warming allows certain insects to breed in new areas. You should also understand related terms like '繁殖力' (hanshoku-ryoku - reproductive power/fertility) and '繁殖形態' (hanshoku-keitai - form of reproduction). At this level, you should recognize the nuance that 'hanshoku' can be both positive (saving an endangered species) and negative (an infestation of pests). Your usage should reflect the formal 'kango' register of the word.

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At the C1 level, you should have a nuanced grasp of '繁殖する' and its place within biological and sociological discourse. You will see this word in scientific journals and high-level editorials. You should be able to discuss the ethics of 'jinkou-hanshoku' (artificial breeding) or the ecological consequences of 'ijou-hanshoku' (abnormal over-breeding). You should also be aware of metaphorical extensions, although rare, where the word might be used to describe the spread of something undesirable in a clinical tone. Your ability to contrast '繁殖' with '生殖' (seishoku - physiological reproduction) and '増殖' (zoushoku - proliferation) should be precise, using each in its correct technical domain without hesitation.

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At the C2 level, '繁殖する' is a tool for precise scientific and philosophical communication. You understand its etymological roots and can discuss the implications of 'hanshoku' in evolutionary biology, such as 'hanshoku-senryaku' (reproductive strategies). You are capable of reading complex legal documents regarding 'hanshoku-ken' (breeding rights) for patented plant varieties or livestock. You can use the word in sophisticated debates about biodiversity, biotechnology, and environmental management. At this level, the word is not just a vocabulary item but a concept that you can manipulate to describe the complex ways in which life propagates and sustains itself across different scales of existence.

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繁殖する em 30 segundos

繁殖する (hanshoku suru) is a formal biological verb for 'to breed' or 'to multiply.'
It is strictly used for non-human organisms like animals, plants, and bacteria.
Commonly found in science, nature documentaries, and environmental reports.
It is a suru-verb that can also be used in the causative form: 繁殖させる (to breed something).

The Japanese verb 繁殖する (hanshoku suru) is a formal, biological term used to describe the process of living organisms—be they animals, plants, or microorganisms—multiplying and producing offspring. While the English word 'breed' often carries the connotation of intentional human intervention (like breeding dogs), 繁殖する encompasses both natural reproduction in the wild and controlled breeding in captivity. It is a compound word consisting of 繁 (han), meaning lush, frequent, or busy, and 殖 (shoku), meaning to augment, increase, or multiply. Together, they paint a picture of life flourishing and expanding in number. You will encounter this word most frequently in scientific contexts, nature documentaries, agricultural reports, and news stories regarding ecology or invasive species.

Biological Context: This word is primarily reserved for non-human life. While humans reproduce, using 'hanshoku' for people sounds cold, clinical, or even dehumanizing, as if discussing livestock or bacteria. Use it for rabbits in a field, bacteria in a petri dish, or weeds in a garden.
Environmental Impact: In Japanese news, you often hear this word used with 'gairai-shu' (invasive species). When an invasive species 繁殖する, it implies an alarming or significant increase that might threaten the local ecosystem.

この池では、外来種のブラックバスが急激に繁殖することで、在来種の数が減っています。
(In this pond, the rapid breeding of invasive black bass is causing a decrease in the number of native species.)

In a lab setting, researchers might observe how bacteria 繁殖する under certain temperatures. In a zoo, keepers might celebrate when an endangered species successfully 繁殖する. It is a word that signifies the continuity of life, though it can also signal a biological threat when the organism in question is a pest or a pathogen. The word is highly formal (kango) and is rarely used in casual daily conversation unless the topic is specifically about pets, gardening, or science.

春になると、多くの野鳥がこの森で繁殖するために集まってきます。
(When spring comes, many wild birds gather in this forest to breed.)

Agricultural Use: Farmers use this word when talking about livestock. For example, 'hanshoku-gyu' refers to breeding cattle. It focuses on the productivity of the animals.

湿度が高い場所では、カビが非常に早く繁殖するので注意が必要です。
(In high-humidity areas, mold multiplies very quickly, so caution is necessary.)

この植物は種ではなく、地下茎によって繁殖する性質を持っています。
(This plant has the characteristic of reproducing via rhizomes rather than seeds.)

Urban Legends & Fiction: In sci-fi or horror movies, you might hear about monsters or aliens that 繁殖する at a terrifying rate. The clinical nature of the word adds to the sense of an unstoppable biological force.

絶滅危惧種のトキを人工的に繁殖する試みが続けられています。
(Attempts to artificially breed the endangered Japanese crested ibis are ongoing.)

Using 繁殖する correctly requires an understanding of its grammatical function as a suru-verb. It behaves like most Sino-Japanese compound verbs, where 'hanshoku' acts as the noun (breeding/multiplication) and 'suru' provides the action. It is an intransitive verb in its most common form, meaning the organism itself is the subject performing the action of breeding. However, when used with 'saseru' (causative), it becomes '繁殖させる' (to make/let something breed), which is common in aquaculture or laboratory science.

Basic Intransitive Usage: [Organism] + が + [Conditions] + で + 繁殖する. For example: 'Saikin ga kougomi de hanshoku suru' (Bacteria multiply in the trash).

ウサギは非常に速いスピードで繁殖することで知られています。
(Rabbits are known for breeding at an extremely high speed.)

The word can also be used in the passive form 繁殖される when humans are the ones doing the breeding, though 'hanshoku saseru' is more common for intentional acts. In academic writing, you will often see it as a noun modified by other nouns, such as 'hanshoku nouryoku' (reproductive ability) or 'hanshoku kankyou' (breeding environment). It is important to note the particles: 'ni' is often used to indicate the location of breeding, while 'de' indicates the means or environment.

この地域には、毒蛇が繁殖するのに適した湿地が広がっています。
(In this area, wetlands suitable for poisonous snakes to breed are widespread.)

Causative Usage (Controlled Breeding): 人間は、より美味しい肉を作るために牛を繁殖させる. (Humans breed cattle to produce tastier meat.) Here, the focus is on the human action of managing the reproduction.

熱帯魚を自宅の水槽で繁殖するのは、初心者には難しいです。
(Breeding tropical fish in a home aquarium is difficult for beginners.)

大腸菌は、37度前後の温度で最も活発に繁殖する。
(E. coli multiplies most actively at temperatures around 37 degrees Celsius.)

Negative Connotation: When used with 'fuketsu' (uncleanliness) or 'saikin' (bacteria), the word carries a strong warning. It suggests an infestation that needs to be controlled.

放置されたゴミ山から、害虫が大量に繁殖する恐れがあります。
(There is a risk that pests will breed in large numbers from the abandoned piles of trash.)

The word 繁殖する is a staple in specific professional and educational domains. If you watch a nature documentary narrated by a deep voice (like the Japanese equivalent of David Attenborough), you will inevitably hear about the 'hanshoku-ki' (breeding season) of salmon or the 'hanshoku-chi' (breeding grounds) of migratory birds. It is also common in the news when discussing environmental crises. For example, the 'red tide' (akashio) in the ocean is caused by plankton that 繁殖する excessively due to pollution or rising temperatures.

Science Classrooms: Japanese students learn this word in 'Rika' (Science) class when studying life cycles. It is the formal way to describe how life continues, distinct from the casual 'umareta' (was born).
Gardening and Farming: If you visit a 'Home Center' (DIY/Garden store) in Japan, you might see books on how to 繁殖する succulents or medaka (Japanese rice fish), which are popular hobbies.

ニュース：温暖化の影響で、本来なら日本にいないはずの蚊が北の方でも繁殖するようになっています。
(News: Due to global warming, mosquitoes that shouldn't be in Japan are now breeding even in the north.)

In the context of the pet industry, particularly 'breeders' (called 'buriidaa' in katakana), the word 繁殖する is used to describe their business. A reputable breeder ensures that animals 繁殖する in a healthy environment. Conversely, the term 'akutoku-buriidaa' (unscrupulous breeder) often appears in news reports about 'puppy mills' where animals are forced to 繁殖する in poor conditions for profit.

ドキュメンタリー：この川の上流は、サケが卵を産み、繁殖するための神聖な場所です。
(Documentary: The upstream of this river is a sacred place for salmon to lay eggs and breed.)

Bacteriology: Doctors or health experts might explain how viruses don't 繁殖する on their own but need a host cell, unlike bacteria which can 繁殖する on surfaces.

研究者：この新種のキノコがどのように繁殖するのか、まだ解明されていません。
(Researcher: It has not yet been clarified how this new species of mushroom reproduces.)

水槽の掃除を怠ると、コケがすぐに繁殖するので気をつけてください。
(Please be careful as moss will quickly multiply if you neglect cleaning the aquarium.)

The most significant mistake learners make with 繁殖する is applying it to human beings. In English, we might say 'the population is breeding' in a very broad or perhaps cynical sense, but in Japanese, 繁殖する is strictly biological and lacks the human element. If you use it to describe a family having children, it sounds as if you are talking about cattle or a scientific experiment. Instead, use 'kodomo ga umareru' (a child is born) or 'shison o nokosu' (to leave behind descendants).

Human Population vs. Animal Breeding: Mistake: 'Nihon-jin ga hanshoku suru' (Japanese people breed). Correct: 'Jinkou ga fueru' (The population increases) or 'Kodomo ga umareru' (Children are born).

❌ 彼の家族はどんどん繁殖する。
✅ 彼の家族はどんどん増えている。
(His family is increasing more and more.)

Another common error is confusing 繁殖 (hanshoku) with 増殖 (zoushoku). While they are similar, 'zoushoku' (proliferation) is often used for cells (like cancer cells) or abstract concepts like 'proliferation of nuclear weapons.' 'Hanshoku' is more specifically about the natural life cycle of an organism. You wouldn't say bacteria 'hanshoku' if you are talking about them multiplying inside a single tissue in a medical context; 'zoushoku' might be more appropriate there. However, for general 'multiplication' of bacteria in food, both are often used.

❌ 銀行の利子で、お金が繁殖する。
✅ 銀行の利子で、お金が増える。
(Money increases with bank interest.)

Kanji Confusion: The 'shoku' in 'hanshoku' (殖) is sometimes confused with 'shoku' in 'shokubutsu' (植 - plant). While plants do 'hanshoku', the kanji used for the verb is 殖 (multiply), not 植 (plant). Be careful when writing.

❌ この花は庭で繁植する。(Wrong Kanji)
✅ この花は庭で繁殖する。
(This flower multiplies in the garden.)

❌ 噂が街中で繁殖する。
✅ 噂が街中に広まる。
(Rumors spread throughout the town.)

Understanding the synonyms of 繁殖する helps you choose the right word for the right context. Japanese has several words for 'increase' and 'reproduction,' each with a slightly different nuance. While 'hanshoku' is the standard biological term, you might choose others depending on whether you are talking about cells, the simple act of birth, or a general increase in numbers.

繁殖 (Hanshoku) vs. 増殖 (Zoushoku): 'Hanshoku' is about organisms as a whole (animals, plants). 'Zoushoku' (proliferation) is more technical and often used for cells, bacteria, or even electronic data. If you are talking about a cancer tumor growing, you use 'zoushoku'. If you are talking about rabbits in a field, you use 'hanshoku'.
繁殖 (Hanshoku) vs. 生殖 (Seishoku): 'Seishoku' is the technical term for 'reproduction' as a physiological process (e.g., sexual reproduction = yuusei-seishoku). 'Hanshoku' focuses more on the result: the increase in the population. 'Seishoku' is what happens in the organs; 'hanshoku' is what happens in the habitat.
繁殖 (Hanshoku) vs. 増える (Fueru): 'Fueru' is the general, everyday word for 'increase.' It can be used for anything from people to money to problems. 'Hanshoku' is the formal, biological version of 'fueru' specifically for living things.

比較：
1. 庭の雑草が繁殖している。(The weeds are breeding/multiplying - biological focus)
2. 庭の雑草が増えている。(The weeds are increasing - general observation)
3. 細胞が増殖している。(Cells are proliferating - scientific/microscopic focus)

In some cases, you might use 蔓延する (man'en suru) if you are talking about something negative spreading, like a disease or a bad habit. While 'hanshoku' describes the biological growth of a virus or bacteria, 'man'en' describes the social spread of the resulting illness. Choosing between these words allows you to signal whether you are looking at the situation through a scientific lens or a social/practical one.

この島では、天敵がいないためネズミが異常に繁殖するという問題が起きています。
(On this island, due to a lack of natural enemies, a problem of rodents breeding abnormally is occurring.)

Summary of Alternatives: Use 産卵する (sanran suru) for laying eggs, 分身する (bunshin suru) for splitting (like amoebas), and 子を産む (ko o umu) for animals or humans giving birth to young.

How Formal Is It?

Curiosidade

The character 殖 (shoku) originally depicted 'bones' and 'to increase,' suggesting the increase of life from the remains of the old, or the growth of living things. The character 繁 (han) shows 'threads' and 'to be busy,' implying a complex, lush growth like tangled silk threads.

Guia de pronúncia

UK /han.ɕo.kɯ.sɯ.ɾɯ/

US /han.ʃo.kʊ.su.ru/

Japanese has pitch accent rather than stress. In 'hanshoku', the accent is 'Heiban' (flat), meaning the pitch stays relatively level after an initial rise.

Rima com

増殖する (zoushoku suru) 移植する (ishoku suru) 腐食する (fushoku suru) 過食する (kashoku suru) 断食する (danjiki suru - slant rhyme) 飽食する (houshoku suru) 就職する (shuushoku suru) 復職する (fukushoku suru)

Erros comuns

Pronouncing 'shoku' like 'shock'. It should be 'sho-ku'.
Over-emphasizing the 'u' at the end of 'suru'. It is often nearly silent in natural speech.
Confusing the pitch with 'hanshoku' (meaning 'eating half' - though rare).
Pronouncing the 'n' like an English 'n'. In Japanese, 'n' before 'sh' is a nasalized vowel sound.
Making the 'r' sound too much like an English 'r' with the tongue curled back.

Nível de dificuldade

Leitura 4/5

The kanji 繁殖 are N1 level and complex to write/read.

Escrita 5/5

Writing 繁殖 by hand is difficult even for some native speakers without practice.

Expressão oral 3/5

The pronunciation is straightforward, but the register must be correct.

Audição 3/5

Common in documentaries and news; easy to recognize once learned.

O que aprender depois

Pré-requisitos

増える (fueru) 生まれる (umareru) 動物 (doubutsu) 植物 (shokubutsu) 季節 (kiseitsu)

Aprenda a seguir

増殖する (zoushoku suru) 絶滅する (zetsumetsu suru) 生態系 (seitaikei) 外来種 (gairaishu) 生殖 (seishoku)

Avançado

遺伝子 (idenshi) 多様性 (tayousei) 進化 (shinka) 適応 (tekiou) 淘汰 (touta)

Gramática essencial

Suru-verbs

繁殖する (To breed), 繁殖させる (To make breed), 繁殖される (To be bred).

Noun + Ki (Season/Period)

繁殖期 (Breeding season), 成長期 (Growth period), 思春期 (Puberty).

Verb Stem + Yasui (Easy to...)

この場所は菌が繁殖しやすい。(This place is easy for bacteria to multiply.)

Intransitive vs. Causative

ウサギが繁殖する (Rabbits breed) vs. ウサギを繁殖させる (To breed rabbits).

Noun Modification

繁殖するスピード (The speed at which [something] breeds).

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Exemplos por nível

うさぎがたくさん繁殖しました。

The rabbits multiplied a lot.

Simple past tense of 'hanshoku suru'.

この花は繁殖するのが早いです。

This flower is fast at multiplying.

Using 'no ga' to turn the verb into a subject.

魚が池で繁殖しています。

Fish are breeding in the pond.

Present continuous tense 'te-iru'.

虫が繁殖するのは怖いです。

It is scary when insects multiply.

Describing a feeling about the action.

きれいに掃除しないと、バイ菌が繁殖しますよ。

If you don't clean well, germs will multiply.

Conditional 'to' indicating a natural consequence.

動物園でパンダが繁殖しました。

Pandas bred at the zoo.

Location particle 'de' used with the action.

ハムスターが繁殖して、１０匹になりました。

The hamsters bred and became ten.

Using 'te' form to connect actions.

春は動物が繁殖する季節です。

Spring is the season when animals breed.

Verb modifying the noun 'kiseitsu' (season).

この種類のメダカは、初心者でも簡単に繁殖させることができます。

Even beginners can easily breed this type of Japanese rice fish.

Causative form 'hanshoku saseru' + 'koto ga dekiru'.

湿気が多いと、カビが繁殖しやすくなります。

When there is a lot of humidity, mold becomes easy to multiply.

Verb stem + 'yasuku naru' (becomes easy to...).

野良猫が繁殖して、近所の人が困っています。

Stray cats have bred, and the neighbors are troubled.

Describing a resulting state that causes trouble.

その島には、たくさんの珍しい鳥が繁殖しています。

Many rare birds are breeding on that island.

Focusing on the state of the habitat.

この植物は、種をまかなくても勝手に繁殖します。

This plant multiplies on its own even without sowing seeds.

'katte ni' means 'on its own' or 'without permission'.

水槽の水を替えないと、藻が繁殖してしまいます。

If you don't change the aquarium water, algae will end up multiplying.

'te shimau' indicates a regrettable result.

冬の間、細菌はあまり繁殖しません。

During winter, bacteria do not multiply very much.

Negative form 'hanshoku shimasen'.

彼は趣味で珍しい昆虫を繁殖させています。

He breeds rare insects as a hobby.

Causative continuous 'saisete iru'.

外来種のブラックバスが繁殖し、在来種が絶滅の危機に瀕しています。

Invasive black bass have bred, and native species are on the verge of extinction.

Linking two clauses with the verb stem 'hanshoku shi'.

この森は、絶滅危惧種の鳥が繁殖する大切な場所です。

This forest is an important place where endangered birds breed.

Relative clause modifying 'basho' (place).

夏場は食中毒の原因となる菌が繁殖しやすいので、注意が必要です。

In the summer, bacteria that cause food poisoning multiply easily, so caution is necessary.

'gen'in to naru' means 'which becomes the cause'.

多肉植物は葉挿しで簡単に繁殖させることができます。

Succulents can be easily propagated (bred) by leaf cuttings.

'de' indicates the method/means.

渡り鳥は、繁殖のために毎年数千キロを移動します。

Migratory birds travel thousands of kilometers every year for the purpose of breeding.

'no tame ni' indicates purpose.

この地域では、害虫が大量に繁殖して農作物に被害が出ています。

In this region, pests have bred in large numbers, causing damage to crops.

Resultative 'te' form showing the cause of damage.

人工的にトキを繁殖させるプロジェクトが成功しました。

The project to artificially breed the Japanese crested ibis was successful.

Adverb 'jinkou-teki ni' (artificially).

サンゴ礁は多くの海洋生物が繁殖する場となっています。

Coral reefs serve as a place where many marine organisms breed.

'~to natte iru' means 'is serving as' or 'has become'.

特定の外来植物が異常に繁殖することで、現地の生態系が破壊されています。

The abnormal breeding of specific invasive plants is destroying the local ecosystem.

Using 'koto de' to indicate the cause/reason.

研究チームは、深海で新種の生物がどのように繁殖しているかを調査した。

The research team investigated how new species of organisms are breeding in the deep sea.

Indirect question using 'ka o'.

抗生物質の使用により、耐性を持つ菌が繁殖するリスクが高まっています。

Due to the use of antibiotics, the risk of drug-resistant bacteria multiplying is increasing.

Noun modification: 'risuku ga takamatte iru'.

この動物は、一回の繁殖で数十個の卵を産むという特徴があります。

This animal is characterized by laying dozens of eggs in a single breeding cycle.

'to iu tokuchou ga aru' (has the characteristic that...).

適切な繁殖管理を行わないと、近親交配の問題が生じる可能性があります。

If proper breeding management is not conducted, the problem of inbreeding may arise.

Formal compound 'hanshoku kanri' (breeding management).

温暖化により、蚊の繁殖域が北上していることが懸念されています。

There are concerns that the breeding range of mosquitoes is moving north due to global warming.

Noun 'hanshoku-iki' (breeding range).

この菌は酸素がない環境でも繁殖することが可能です。

This bacterium is capable of multiplying even in an environment without oxygen.

'koto ga kanou desu' is a formal way to say 'can'.

水質汚染が原因で、プランクトンが異常繁殖し、赤潮が発生した。

Plankton bred abnormally due to water pollution, causing a red tide.

Abbreviated compound 'ijou-hanshoku' (abnormal breeding).

個体群密度が一定を超えると、その種の繁殖率は急激に低下する傾向にある。

When population density exceeds a certain level, the reproductive rate of that species tends to drop sharply.

Technical term 'hanshoku-ritsu' (reproductive rate).

この論文は、気候変動が渡り鳥の繁殖周期に与える影響を論じている。

This paper discusses the impact of climate change on the breeding cycles of migratory birds.

Complex noun phrase 'hanshoku-shuuki ni ataeru eikyou'.

遺伝的多様性を維持しつつ繁殖させることは、保護活動において極めて重要だ。

Breeding while maintaining genetic diversity is extremely important in conservation activities.

'~tsutsu' means 'while doing' (formal).

ある特定の条件下では、ウイルスは細胞内で爆発的に繁殖（増殖）する。

Under certain specific conditions, viruses multiply (proliferate) explosively within cells.

Adverbial 'bakuhatsu-teki ni' (explosively).

商業的な目的での過剰な繁殖は、動物福祉の観点から批判を浴びている。

Excessive breeding for commercial purposes has drawn criticism from the perspective of animal welfare.

'~no kanten kara' (from the perspective of).

この植物は他家受粉によってのみ繁殖するため、隔離された環境では増えない。

Because this plant reproduces only through cross-pollination, it does not increase in isolated environments.

Logical connector 'tame' (because/due to).

外来種の繁殖を阻止するための法整備が急務となっている。

The establishment of laws to prevent the breeding of invasive species has become an urgent matter.

Noun 'hanshoku o soshi' (preventing breeding).

生殖隔離が起こることで、一つの種が二つの異なる種へと繁殖を分かつこともある。

When reproductive isolation occurs, one species may split its breeding into two different species.

Philosophical/Biological use of 'hanshoku o wakatsu'.

進化生物学において、個体が自らの遺伝子を次世代にいかに効率よく繁殖させるかは中心的な命題である。

In evolutionary biology, how an individual efficiently propagates its own genes to the next generation is a central proposition.

Using 'hanshoku saseru' in an evolutionary context.

その細菌は、宿主の免疫系を巧みに回避しながら繁殖を続ける能力を獲得していた。

The bacteria had acquired the ability to continue multiplying while skillfully evading the host's immune system.

Concessive 'nagara' (while) with 'kaihi suru' (evade).

絶滅の淵にある種の遺伝的ボトルネックを回避するため、厳密な計画繁殖が実施された。

To avoid the genetic bottleneck of a species on the brink of extinction, strict planned breeding was implemented.

Compound 'keikaku-hanshoku' (planned breeding).

生態学的ニッチが空白となった場所に、新たな種が入り込み急速に繁殖する現象を「遷移」と呼ぶ。

The phenomenon where a new species enters a place where an ecological niche has become vacant and rapidly multiplies is called 'succession'.

Defining a scientific concept using the verb.

無性生殖による繁殖は、環境変化に対する適応力が低いという脆弱性を孕んでいる。

Reproduction via asexual means carries the vulnerability of low adaptability to environmental changes.

'~o harande iru' (is fraught with / carries).

海洋深層水に含まれる栄養塩が表層へ供給されることで、プランクトンの爆発的繁殖が誘発される。

The supply of nutrients contained in deep-sea water to the surface induces an explosive multiplication of plankton.

Passive 'yuuhatsu sareru' (is induced).

バイオテクノロジーの進展により、特定の形質を持つ微生物を大量に繁殖させることが容易になった。

With the progress of biotechnology, it has become easy to breed microorganisms with specific traits in large quantities.

'~o hanshoku saseru koto ga youi ni natta'.

この島固有のトカゲが、人為的に持ち込まれたマングースによって繁殖を脅かされている事実は重い。

The fact that the breeding of lizards endemic to this island is being threatened by human-introduced mongooses is a serious matter.

Passive 'hanshoku o obiyakasarete iru'.

Colocações comuns

異常に繁殖する

急速に繁殖する

繁殖に適した環境

繁殖能力が高い

人工的に繁殖させる

繁殖期を迎える

細菌が繁殖する

大量に繁殖する

繁殖を抑える

繁殖を繰り返す

Frases Comuns

繁殖期 (hanshoku-ki)

— Breeding season. The specific time of year animals reproduce.

繁殖期の動物は気性が荒い。(Animals in breeding season are temperamental.)

繁殖地 (hanshoku-chi)

— Breeding ground. The location where organisms breed.

ここはツルの繁殖地として有名です。(This place is famous as a crane breeding ground.)

人工繁殖 (jinkou hanshoku)

— Artificial breeding. Reproduction managed by humans.

人工繁殖によって絶滅を防ぐ。(Prevent extinction through artificial breeding.)

繁殖力 (hanshoku-ryoku)

— Reproductive power. The ability of an organism to multiply.

驚異的な繁殖力を持つ雑草。(Weeds with amazing reproductive power.)

繁殖形態 (hanshoku keitai)

— Form/Method of reproduction.

魚の繁殖形態は様々だ。(The forms of fish reproduction vary.)

大量繁殖 (tairyou hanshoku)

— Mass breeding or an outbreak of multiplication.

クラゲの大量繁殖が問題だ。(The mass breeding of jellyfish is a problem.)

自然繁殖 (shizen hanshoku)

— Natural breeding. Reproduction without human aid.

野生での自然繁殖を確認した。(Confirmed natural breeding in the wild.)

繁殖率 (hanshoku-ritsu)

— Reproduction rate.

繁殖率を計算する。(Calculate the reproduction rate.)

繁殖用 (hanshoku-you)

— For breeding purposes.

繁殖用の牛を飼育する。(Raise cattle for breeding.)

繁殖成功 (hanshoku seikou)

— Successful breeding.

国内初の繁殖成功例。(The first successful breeding case in the country.)

Frequentemente confundido com

繁殖する vs 増殖 (zoushoku)

Zoushoku is for proliferation of cells or bacteria; Hanshoku is for organisms breeding.

繁殖する vs 生殖 (seishoku)

Seishoku is the physiological mechanism of sex/reproduction; Hanshoku is the population increase.

繁殖する vs 養殖 (youshoku)

Youshoku is aquaculture/farming (raising fish to eat); Hanshoku is the act of breeding.

Expressões idiomáticas

"ネズミ算式に増える"

— To increase exponentially (literally 'like a mouse calculation'). While not using 'hanshoku', it describes the result of rapid 'hanshoku'.

借金がネズミ算式に増えていく。(Debts are increasing exponentially.)

Common

"雨後の筍のように"

— Like bamboo shoots after rain. Used for things appearing one after another, similar to rapid plant 'hanshoku'.

新しいカフェが雨後の筍のように開店している。(New cafes are opening like bamboo shoots after rain.)

Common

"根を張る"

— To take root and spread. Related to how plants breed and establish themselves.

この文化はこの地に深く根を張っている。(This culture is deeply rooted in this land.)

Common

"火の付いたように"

— Like a fire being lit. Can describe a sudden 'ijou-hanshoku' (abnormal breeding) of pests.

害虫が火の付いたように繁殖した。(Pests bred like wildfire.)

Informal

"息を吹き返す"

— To come back to life/recover. Often used when a species starts to 'hanshoku' again after nearly going extinct.

絶滅寸前だった鳥が息を吹き返した。(The bird that was on the verge of extinction has made a comeback.)

Common

"虫の居所が悪い"

— To be in a bad mood. (Uses 'mushi' - insect, but unrelated to breeding).

今日は部長の虫の居所が悪い。(The manager is in a bad mood today.)

Common

"一網打尽"

— Rounding up everyone in one go. Often used when cleaning up pests that have 'hanshoku-ed'.

害虫を一網打尽にする。(Wipe out all the pests at once.)

Formal

"後の祭り"

— Too late. Used when people notice pests have already 'hanshoku-ed' too much.

対策を立てるのが遅すぎて、後の祭りだ。(It's too late to take measures; the damage is done.)

Common

"虎の尾を踏む"

— To tread on a tiger's tail (take a big risk). Related to approaching animals during 'hanshoku-ki'.

繁殖期のクマに近づくのは虎の尾を踏むようなものだ。(Approaching a bear in breeding season is like treading on a tiger's tail.)

Common

"草の根"

— Grassroots. Related to the way plants spread and multiply.

草の根運動が広がった。(The grassroots movement spread.)

Common

Fácil de confundir

繁殖する vs 増える (fueru)

Both mean 'to increase'.

'Fueru' is general; 'Hanshoku' is biological reproduction.

お金が増える (OK) vs お金が繁殖する (Wrong).

繁殖する vs 産まれる (umareru)

Both relate to new life.

'Umareru' is 'to be born' (individual); 'Hanshoku' is the population process.

赤ちゃんが産まれた (Individual) vs ウサギが繁殖した (Population).

繁殖する vs 広がる (hirogaru)

Both mean 'spreading'.

'Hirogaru' is spatial expansion; 'Hanshoku' is biological multiplication.

砂漠が広がる (Desert spreads) vs 雑草が繁殖する (Weeds multiply).

繁殖する vs 蔓延する (man'en suru)

Both describe things increasing/spreading.

'Man'en' is for diseases/evils spreading in society; 'Hanshoku' is biological.

病気が蔓延する (Disease spreads) vs 細菌が繁殖する (Bacteria multiply).

繁殖する vs 繁栄する (han'ei suru)

They share the kanji '繁'.

'Han'ei' means to prosper/flourish (cities, cultures); 'Hanshoku' is for babies/offspring.

国が繁栄する (Country prospers) vs 動物が繁殖する (Animals breed).

Padrões de frases

[Organism] が [Location] で繁殖する。

メダカが水槽で繁殖する。

[Organism] は繁殖能力が高い。

ネズミは繁殖能力が高い。

[Condition] と、[Organism] が繁殖しやすくなる。

温かいと、カビが繁殖しやすくなる。

[Organism] を人工的に繁殖させる。

パンダを人工的に繁殖させる。

[Organism] の異常繁殖が問題になっている。

害虫の異常繁殖が問題になっている。

[Organism] の繁殖を阻止するために [Action] する。

外来種の繁殖を阻止するために薬をまく。

[Organism] は [Method] によって繁殖する。

この植物は地下茎によって繁殖する。

[Organism] の繁殖戦略を分析する。

深海魚の繁殖戦略を分析する。

Família de palavras

Substantivos

繁殖 (hanshoku) - Breeding/Multiplication

繁殖期 (hanshoku-ki) - Breeding season

繁殖地 (hanshoku-chi) - Breeding ground

Verbos

繁殖する (hanshoku suru) - To breed/multiply (intransitive)

繁殖させる (hanshoku saseru) - To breed/cause to multiply (causative)

Adjetivos

繁殖的な (hanshoku-teki na) - Reproductive/Breeding-related (rare)

多産な (tasan na) - Prolific

Relacionado

生殖 (seishoku) - Reproduction

増殖 (zoushoku) - Proliferation

養殖 (youshoku) - Aquaculture/Farming

殖やす (fuyasu) - To increase/breed (transitive verb)

繁栄 (han'ei) - Prosperity

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Como usar

frequency

High in scientific, educational, and environmental contexts. Low in casual daily conversation.

Erros comuns

Using it for human population growth. → 人口が増える (jinkou ga fueru).
Hanshoku is for animals/plants. Using it for humans is dehumanizing.
Using it for money increasing. → お金が増える (okane ga fueru).
Hanshoku implies biological reproduction, not just any numerical increase.
Writing the kanji as 繁植. → 繁殖.
The second kanji is 殖 (multiply), not 植 (plant).
Using it for the spread of a rumor. → 噂が広まる (uwasa ga hiromaru).
Rumors are not biological organisms; they 'spread' but don't 'breed'.
Using it to mean 'to grow tall'. → 成長する (seichou suru).
Hanshoku means to increase in number, not to grow in size.

Dicas

Documentary Style

If you want to sound like a nature documentary narrator, use 'hanshoku suru' instead of 'fueru'.

Causative Form

Remember 'hanshoku saseru' when you are the one in control, like a farmer or a scientist.

Right Side of 殖

Don't confuse the right side of 殖 with other similar radicals. It's unique to 'shoku'.

Antonym Pair

Learn 'hanshoku' (breeding) and 'zetsumetsu' (extinction) together as they are often used in the same context.

Environmental News

Look for this word in news about 'Gairaishu' (invasive species) to see it used in a negative context.

Kitchen Safety

Use 'hanshoku' when talking about bacteria on sponges or cutting boards during summer.

Biology Exams

This is a key word for JLPT N2/N1 and for students taking science subjects in Japanese.

Compound Nouns

Get used to seeing it combined with other kanji like 'ki' (period) or 'chi' (ground).

Softening the Tone

If 'hanshoku' sounds too clinical for your pet, you can say 'akachan ga umareta' (babies were born).

Springtime

Notice how the word 'hanshoku' appears more frequently in Japanese media during the spring.

Memorize

Mnemônico

Think of a 'HAN' (Hand) planting seeds that 'SHOKU' (Shock) the world by how fast they grow! 'Hanshoku' is the biological 'shock' of rapid growth.

Associação visual

Imagine a rabbit (Han) jumping into a field and suddenly being surrounded by dozens of babies (Shoku - shock!).

Word Web

Animals Plants Bacteria Biology Ecology Babies Increase Season

Desafio

Try to find three different things in a park that 'hanshoku suru' (birds, weeds, insects) and write a sentence for each.

Origem da palavra

The word is a 'Kango' (Sino-Japanese word). It combines 'han' (繁) and 'shoku' (殖).

Significado original: To increase in abundance and multiply in number.

Sino-Japanese (derived from Chinese characters).

Contexto cultural

Never use this word for humans. It is perceived as treating people like animals or objects.

English speakers often use 'breed' for pets and 'multiply' for pests. 'Hanshoku suru' covers both, but is more formal/scientific than the average English conversation.

The 'Toki' (Japanese Crested Ibis) conservation program is the most famous real-world example of 'jinkou-hanshoku' in Japan. Nature documentaries by NHK frequently use this term. Scientific reports on the 'Red Tide' (Akashio) in Tokyo Bay.

Pratique na vida real

Contextos reais

Nature Documentaries

繁殖期を迎える
繁殖地へ向かう
厳しい環境で繁殖する
繁殖に成功する

Hygiene/Health

細菌の繁殖を防ぐ
カビが繁殖する
不衛生な場所で繁殖する
繁殖を抑えるスプレー

Gardening/Aquariums

メダカを繁殖させる
簡単に繁殖する植物
繁殖のコツ
水槽で繁殖する

Environmental Issues

外来種が異常繁殖する
生態系を壊して繁殖する
繁殖を阻止する
大量繁殖した害虫

Agriculture

繁殖用の家畜
効率よく繁殖させる
繁殖農家
繁殖能力の維持

Iniciadores de conversa

"最近、庭の雑草がすごく繁殖していて困っているんです。(Lately, I'm troubled because the weeds in my garden are multiplying so much.)"

"この熱帯魚、家で繁殖させるのは難しいですか？(Is it difficult to breed this tropical fish at home?)"

"ニュースで外来種のネズミが大量に繁殖しているって見ましたか？(Did you see on the news that invasive rats are multiplying in large numbers?)"

"パンダの繁殖に成功したというニュースを聞いて、嬉しくなりました。(I was happy to hear the news that they succeeded in breeding pandas.)"

"夏は湿気が多いから、菌が繁殖しないように気をつけないとね。(Since it's humid in summer, we have to be careful so bacteria don't multiply.)"

Temas para diário

もし自分が絶滅危惧種を守る科学者だったら、どのように繁殖プロジェクトを進めますか？(If you were a scientist protecting an endangered species, how would you proceed with a breeding project?)

最近、自分の周りで「増えすぎている」と感じる生き物（虫や植物など）はありますか？(Are there any living things around you lately that you feel are 'multiplying too much'?)

「繁殖」という言葉から、あなたはポジティブなイメージとネガティブなイメージのどちらを強く抱きますか？(Do you have a stronger positive or negative image of the word 'hanshoku'?)

ペットを繁殖させることについて、あなたの意見を書いてください。(Write your opinion about breeding pets.)

家の中の衛生管理で、菌の繁殖を防ぐために工夫していることはありますか？(In your home hygiene management, is there anything you do to prevent the multiplication of bacteria?)

Perguntas frequentes

10 perguntas

No, it is highly inappropriate. It sounds as if you are treating humans like animals or biological specimens. Use 'kodomo ga fueru' or 'shison o nokosu' instead.

'繁殖' (hanshoku) is used for organisms like animals and plants. '増殖' (zoushoku) is used for smaller units like cells or bacteria, or abstract things like data.

It is common in specific areas like news, science, and nature documentaries, but you wouldn't use it in a casual chat about your weekend unless you are a gardener or fish keeper.

The word is '繁殖期' (hanshoku-ki). You can use it like 'Ima wa shika no hanshoku-ki desu' (Now is the deer's breeding season).

Yes, it is very common for plants, especially when talking about weeds or how a specific flower spreads.

Use 'ga' for the subject (the thing breeding) and 'de' or 'ni' for the location.

Yes, use the causative form '繁殖させる' (hanshoku saseru) to mean 'to breed [something]'.

Yes, it is a noun. For example, 'Hanshoku no supiido' (The speed of breeding).

It means 'abnormal breeding' or 'over-multiplication,' often used for pests or invasive species.

In a biological sense, yes. It refers to any method of producing offspring or increasing the population of a species.

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