交配

Alter being fed 50 days for depleting the VA store in body, the female rats copulated with male rats. All the copulated rats were randomly divided into 4 groups: VA deficient group, VA supplement group, VA marginally deficient group, VA marginally deficient supplement group.

将交配后的雌鼠在各组内随机分为VA缺乏组、VA缺乏妊娠0d补充组、VA边缘缺乏组、VA边缘缺乏妊娠0d补充组。B、D组于妊娠第0d喂饲补充饲料。

Results:weijian obviously shortened the latent period of erection in castrational rats after electric stimulus and the latent period of coitus in castrational mice,increased coitus times in castrational mice,increased the appearance rate of sperm suppository in copulated female mice. the acute toxicity tests showed that the half lethal dose(ld50) of weijian was 901.53 mg/kg and 319.60 mg/kg, the long-term toxicity tests showed that large dose of weijian slightly increased the level of glutamic pyruvic transaminase and decreased the glucose,triglyceride and cholesterol of blood, while had no effects on other biochemical factors.

结果： 伟剑能明显缩短去睾丸大鼠的电刺激阴茎勃起潜伏期，明显缩短去睾丸小鼠的性交潜伏期，并增加去睾丸小鼠的性交次数，增加交配后雌性小鼠的精栓出现率；急性毒性试验测得伟剑的口服半数致死量（ld50）为901.53 mg/kg，腹腔注射的ld50为319.60 mg/kg；长期毒性试验研究表明该药在大剂量时可轻度升高谷丙转氨酶，轻度降低血糖、总胆红素及胆固醇，而对其他血液生化指标无影响。

Since he cannot be sure of paternity, the best he can do is prevent his mate from copulating with any other males.

由于怕不能确保父子关系，对他来说，最好的办法就是防止配偶和他人交配。

When the mature stallion without copulating smelled a mare, he will set a hot pursuit.

当一匹没有交配过的成年公马嗅到母马的气息时，它会发出热烈的追求。

These included "lizards in their skin, birds with beaks and eyes, spiders with their webs, and frogs copulating."

其中涉及&皮肤上的蜥蜴纹、长喙和眼的鸟、带网的蜘蛛、交配的青蛙&等内容。

The mature sperm was vented from copulating.

最终成熟的精子经过交配活动排出体外。

So one evolutionary consequence to keep an eye out for in Laysan albatross populations that have high rates of female-female pairs is the evolution of males that spend more time copulating with females to whom they are not permanently bonded, says Bailey.

因此，引人关注的莱桑信天翁种群当中出现高比例的雌雌配对现象，是雄鸟进化的结果，因为它们可以有更多的时间同那些关系并不永久的雌鸟交配，。贝利指出。

How the Males Escape: The best known self-preservation tactic for male mantises is simply waiting until their partner has caught a snack - and to hoping she isn't still hungry after they finish copulating.

雄性如何逃脱：雄性螳螂的自卫策略就是简单地等待雌性到来，然后将它们吞食，或许雄性不被雌性吞食的最大可能性就是在雌性完成交配后并未感到饥饿。

Pheromones of conspecific male inse cts are usually belonged to the same type chemical, while the chemical structure s are different. However, male insects can utilize the little difference to attr act female insects, urge the copulating and prevent interspecific mating, etc.

通过不同部位释放的雄性昆虫性信息素种类是多样的，但其化学结构的差异又是细微的，雄性昆虫则利用这些差异来引诱雌性昆虫、促进交配和生殖隔离等。

Sagittarius, each female constructs a tunnel after she has mated and then packs it with the stuff in the form of a brooding ball, on which she lays her eggs. Her mate guards the entrance, fighting other males to stop them entering the tunnel and cuckolding him.

举箭嗡蜣螂为例，每只雌性蜣螂在交配后就会建洞穴，在球状物上产卵，然后把带卵的球状物塞满整个洞穴，其伴侣则守护洞穴出入口，对抗其它雄性蜣螂阻止他们入侵，也避免自己被戴绿帽。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。