artificial fertilization

Large scale mechanized operation and artificial fertilization were the main reasons of the contents and soil spatial variability of soil nutrient changed.

大规模机械化作业、施肥技术的改进等人为活动是研究区养分分布格局及含量发生变化的主要原因。

Especially GRTS oviduct through liquid and artificial fertilization.

尤其是GRTS输卵管一次性通液,人工授精.

To clarify Reproductive System structure of the Female Black bear and provide basic data for artificial fertilization study.

为了阐明雌性黑熊生殖系统的组织结构，为黑熊的人工授精等提供基础参考资料。

Materials used are taken from the experiments of artificial fertilization made during the spawning season of the fish at Rizhao county, Shandong province in1959.

材料于1959年生殖季节在山东省日照县涛雒口进行人工授精所得。有趣的是记录到黄姑鱼早期仔鱼的二个特有特征。

Objective To study the effect of artificial fertilization on infertility from anovulation.

目的探讨破泡授精术治疗促卵后排卵障碍性不孕症的可行性。

Conclusively, artificial factors such as fertilization intensified the spatial variability of soil mineral nutrients.

总的来说，施肥等人为因素加剧了土壤矿质养分的空间变异。

The 136 cases of puncturing group were in the guide of vagina ultrasound to help ovulation and were given artificial fertilization.

卵泡穿刺组136例，在阴道超声指引下行卵泡穿刺协助其排卵，同时行人工授精术；

It is still unclear what effects vasectomy has on the spermatogenesis in the testis and on the epididymal structures. It has potential influence on the fertility after reversal of the operation and on the success rate of artificial fertilization.

输精管结扎对睾丸精子发生和附睾结构的影响仍不完全清楚，而它可能影响输精管吻合术后生育能力的恢复或输精管结扎后进行人工受精的成功率。

Conclusions Semen infusion to fallopian tubes by uterine catheter can increase semen amount around oocyte in fallopian tube, increase the pregnancy rate and lessen hemorrhage in artificial fertilization.

结论利用双腔子宫通水管行输卵管内精液灌注人工授精能减少置管出血的发生，增加了输卵管内卵细胞周围的精子数量，有效地提高了妊娠成功率。

The results showed that: firstly, the fertility of artificial fertilization and hatchability of the ducks in the floors were higher than those of the ducks raised in nets ( P0.01), 4.11% and 2.84% higher, respectively.

结果表明：①地面平养组人工授精的受精率和孵化率比网上平养组分别高出4.11%和2.84%，且差异极显著（P＜0.01）。

Study on Techniques for Artificial Fertilization of Quail

鹌鹑的人工受精试验研究

The sperm density of mature male was 2 × 10~ ( 11)/ mL. The ratio of female to male was 2 ∶ 1 during the artificial fertilization and the fertilized rate was 75%-92%.

成熟雄性精子数量为200亿/mL，人工繁殖时雌雄比为2∶1，受精率75%～92%。

The preliminary research on artificial fertilization technology of Oncorhynchus masou masou

山女鳟人工受精孵化技术初步研究

In this paper, we established a quantitative determination method for platelet activating factor ( PAF), that is, washed platelet aggregation test ( bio-assay), to explore the changes of the concentration of PAF before and after artificial fertilization in giant panda.

本文建立了定量检测血小板活化因子（Platelet Activating Factor，PAF）的方法&血小板凝集生物学检测法，检测了大熊猫配种前后血浆中PAF的含量；

Diversity usually decreases or shows a unimodal pattern along natural gradients of increasing productivity. However, artificial fertilization gradients, the pattern is more consistent: diversity always decreases with increasing productivity.

在自然的生产力梯度上，多样性一般随着生产力增加表现为降低或单峰模式；在人工的生产力梯度上，这种关系比较一致，多样性总是随着生产力的增加而降低。

By artificial fertilization, some mutual-cross experiments were conducted among transparent color crucian carp, red crucian carp, ornamental carp and red purse carp to detect the survival rates, growth speeds and body color separations of hybrids.

利用人工授精的方法，进行水晶彩鲫、红鲫、锦鲤和荷包红鲤的相互杂交试验，测定各个杂交组合子代的成活率、生长速度和体色分离比例。

Studies on the oxygen evolution bioassay method for guiding artificial fertilization in large water bodies

指导大水域施肥的生氧量生物测验法的研究

The nitrogen entering natural ecosystems has been increasing with the growing of nitrogen deposition and artificial fertilization.

近年来，随着氮沉降、人工施肥的增加，输入自然生态系统的氮元素越来越多。

The research was used to study the effect of adding bee pollen in diets on the multiplication and endocrine of breeder cocks which can not ejaculate under artificial fertilization.

研究蜂花粉对人工采精中采不出精液的公鸡的繁殖性能及内分泌机能的影响。

After artificial fertilization, the first and second polar body was released from the egg. The blastula was formed by spiral cleavage. The gastrula, which was formed by invagination, was hatched at 24h pf ( post-fertilization).

单环刺螠虫受精后卵子先后排放第一、二极体，经螺旋型卵裂后生成腔囊胚，囊胚经内陷形成原肠胚，胚体于受精后24h孵化，形成担轮幼虫。

Artificial propagation of the Chinese alligator THE EXPERIMENTATION OF USING SALT SOLUTION ON SALMONS ARTIFICIAL FERTILIZATION

食盐水洗卵法在鲑科鱼人工繁殖中的应用试验