recipient

Japanese: recipient

...However, although there are tens of thousands of primordial follicles in the ovaries of female livestock, only a few of them develop and ovulate, and the majority of follicles, no matter how superior their characteristics, regress and never see the light of day. Therefore, if a large number of these follicles with superior characteristics are allowed to mature and ovulate, and then fertilized with the sperm of a male livestock with superior characteristics, and the fertilized eggs are collected (this female livestock is called a donor), placed in the uterus of an unsuitable female livestock (this female livestock is called a recipient), and allowed to give birth, superior livestock can be produced using the womb of an unsuitable female, which will further promote livestock improvement.
[Overview of Embryo Transfer]
(1) Multiple ovulation induction treatment: In order to obtain many fertilized eggs with superior genetic traits, donors are given hormone treatment to develop follicles and induce ovulation, which is then used for artificial insemination.

From [Organ Transplantation]

…Transplants are performed on almost all organs except the central nervous system. In a transplant, there is a donor and a recipient. When both donors are from the same organism, for example, transplanting one's own skin onto another, it is called an autotransplant. When both have the same genes, for example, transplants between identical twins or purebred mice, it is called a syngeneic transplant. When transplants are between the same species, for example, between humans and humans or between dogs and dogs, it is called an allotransplant. When transplants are between different species, for example, between humans and chimpanzees, it is called a xenotransplant. …

*Some terminology explanations that mention "recipient" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ところが，雌子畜の卵巣には数万個以上の原始卵胞があるが，その中で発育して排卵されるものはごくわずかで，大多数の卵胞はいかに優良な形質をもっていても退行してしまい，結局日の目を見ないことになる。そこで，この優良な形質をもつ多数の卵胞を成熟，排卵させて，優良な形質をもつ雄畜の精子によって受精させ，その受精卵を採取して(この雌畜をドナーdonor，供給者または供卵者と称する)，優良でない雌畜の子宮に入れて(この雌畜をレシピエントrecipient，受容者または受卵者と称する)，分娩させれば，好ましくない雌畜の腹を借りて，優良な子畜を生産できるので，家畜改良が一層促進されることになる。
［受精卵移植術の概要］
　(1)多排卵誘起処理　優良な遺伝形質をもつ受精卵を多く得るために，ドナーにホルモン処理を施し，卵胞を発育，排卵させて人工授精を行う。…

【臓器移植】より

…移植は，中枢神経以外のほとんどすべての臓器に行われている。移植には，臓器の供与者(提供者またはドナーdonor)と受容者(もらい手またはレシピエントrecipient)がいる。両者が同じ生体，たとえば自分の皮膚を自分の他の部に移植することを〈自家移植〉，両者の遺伝子が同じ場合，たとえば一卵性双生児や純系マウス間の移植を〈同系移植〉，同じ種間の移植，たとえばヒトとヒト，イヌとイヌ間の移植を〈同種移植〉，異種間，たとえばヒトとチンパンジー間の移植を〈異種移植〉という。…

※「recipient」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典第２版について | 情報

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