insemination

名词受精; 授精，播种

1. 授精：按照术语学家的定义,授精( insemination) 使得精卵相遇,精卵质膜融合. 受精( fertilization)指的是精子和卵子各自的单倍体基因组相融合形成两倍体合子的事件. 对于那些在卵子完成减数分裂之前精子进入卵子的生物体而言,

2. 受精：第四篇 昆虫的生物学 第三章 胚胎发育 性成熟的昆虫,通过交配雄虫以不同的方式把精子送入雌虫的体内,这一过程叫受精(insemination). 而精子使卵受精(fertilization)是在卵产出之前在中输卵管或阴道内发生的,其实质是雄性原核与雌性原核结合为合子(zygote).

3. 人工授精：hormone荷尔蒙,激素 | insemination人工授精 | insulin胰岛素

4. 接种;播种：insectology 昆虫学 | insemination 接种;播种 | insert 插入

1. Pandas have a low birth rate and artificial insemination is common in captive breeding programs.

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2. Hua Mei became pregnant via artificial insemination on May 8 this year after various attempts at natural mating with two other male adult pandas failed.

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3. Liu said artificial insemination could be used to crossbreed tigers and lions in the future.

4. insemination

4. China has successfully used artificial insemination to impregnate giant pandas since 1978.

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5. The sperm shortage and growing infertility rate have spurred human trafficking and illegal insemination in the underground market.

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6. He also stressed that an organized harvest, a reasonable purchase price and summer insemination of maize are important.

7. Doctors of Xijing Hospital tried to make her in a good mood and adjusted her menstrual period before carrying out an external insemination.

8. Yeh added that the reproduction of giant pandas had always been a problem, so artificial insemination became a common practice when breeding pandas living in captivity.

9. They produced a cub Tai Shan, via artificial insemination in 2005.

10. But after numerous attempts at artificial insemination and a visit by Chinese zoologists, it emerged that Yan Yan was rendered infertile by a hormonal disorder.

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