查询词典 cattle crossing

It implies that the relationship between Japanese black cattle and Mongolian cattle is more distant. According to that the rate of sequence divergence of mtDNA is estimated to be 2% per million years, Haplotype II and III of mongolian cattle s mtDNA might be separate about 240 thousand years ago, which is earlier than the 10000-year history of cattle husbandry. Haplotype of yellow cattleand zebu cattle might be separate about 0.73-0.92 million years ago.

按照哺乳动物mtDNA碱基突变率每百万年2％计算，单倍型Ⅱ和Ⅲ(遗传距离为0.478％)所代表的蒙蒙古牛和日本和牛遗传多态性比较研究硕士学位论文古牛群体之间的分化时间大约24万年，这比人类驯化牛10000的历史要久远得多。I单倍型和11、m两种单倍型(遗传距离为1.467%，1.83870)所代表的牛群体之间的分化时间大约73万年至92万年前。

H6 heliotype did not found in Nanyang cattle and Luxi cattle. 5 Yellow cattle and yak had different allele in UMN0307 locus, so this locus could be used to differentiate yellow cattle and yak. We did not find yak's allele in yellow cattle populations, which indicated that there was not yak male origin in these 4 populations.

UMN0307 位点在牦牛和普通牛、瘤牛有不同的等位基因，可以用于牦牛和瘤牛、普通牛的分离鉴定；在本实验研究个体中，没有在黄牛中发现和牦牛相同的等位基因，表明至少在这四个群体所检测个体中，没有发现牦牛的父系起源。

Animal husbandry is the ordinary people in Shandong Jiaxiang county by county Animal Husbandry Bureau approval to the improvement of cattle and sheep breeding, and optimize the culture, science and technology promotion, improved allocation in large-scale integrated animal husbandry science and technology companies, the main varieties are: Luxi cattle, Simon Tartu cattle, Limousin cattle, Charolais cattle; Boer goat, Small Tail Han sheep, Dorper sheep, the Asian Huangyangchuan, Charolais sheep.

山东老百姓牧业公司是由嘉祥县政府、县畜牧局批准，以牛羊的改良繁育、优化养殖、科技推广、良种调拨于一体的大型科技牧业公司，主要的品种有：鲁西黄牛、西门塔尔牛、利木赞牛、夏洛莱牛；波尔山羊、小尾寒羊、杜泊羊、亚洲黄羊、夏洛莱羊。

A new dimensionaless parameter, called the threshold-crossing intens ity, is defined as a measure of the threshold-crossing severity, which is equal to the ratio of the product of average number of crossing events per unit time a nd mean threshold-crossing duration and amplitude over the threshold.

定义了一种度量过阀严重程度的新指标，称为"过阀强度"，等于单位时间过阀平均次数、平均过阀延续时间和平均过阀幅值三项乘积与阀值之比。

The sketch and specific design approaches of mid-block street crossing are generalized and three management and control modes are discussed. Based on extensive investigation and survey, the paper analysis the arriving laws in different land-use condition and the traffic characteristics of different crossing entities under different control modes. The initial characteristic, the speed and dispersion of the mobile flow are also intensive studied, as well as the effect of mid-block street crossing. Establish the linear planning models on the coordination between the signals of mid-block crossing and intersection. Finally the evaluation of the model output is carried out from time saving results, safety, economic results and social results. Set the example of Taiping north road in Nanjing, surveying the traffic situation, applying the method of signal coordination between the mid-block crossings and intersection to realize the south-to-north signal coordination design. The evaluation results show the coordination plan are more superior to the current signal plan.

本文首先阐述了行人过街物理设施的概略设计和详细设计方法，讨论了路段人行横道的三种交通管制方式的设计方法和实用条件；其次，在充分的实际调查基础上，详细分析了不同用地性质条件下的过街需求的到达特性和不同交通管制下不同过街实体的交通特性，分析了进入路段的机动车初始流特性，并对机动车在路段中的车速特征、离散性以及路段信号控制人行横道对机动车流的影响进行了研究；然后，根据以上分析的过街交通和机动车交通的交通特性，建立了路段行人过街信号与交叉口信号协调控制的线性规划模型；最后，对模型输出的协调控制方案进行了效益评价分析，从时间效益、安全性、经济效益和社会效益四个方面，定量和定性相结合地对其实施效果予以评价；以南京市太平北路路段为例，根据现状交通状况，应用行人过街信号与交叉口信号协调控制的方法，对该路段由南向北方向进行单向协调控制设计，并进行方案效益分析评价，提出了优于现状控制方案的人行过街信号与交叉口信号协调控制方案。

However, crossing fertility between them was lower than that of mating in and in, and fertilized egg of reciprocal crossing can be incubated and produced F〓 without prezygotic isolation. Among all combinations of reciprocal crossing, crossing of wild male quail×female small-type domestic quail are proved to produce the best effect.

野生日本鸣鹑与家鹑群体之间的杂交能育性低于同种群交配水平，但可以实现正、反交，产生受精卵、孵化出杂种一代，不存在合子前生殖隔离；在所有正、反交组合中，以野雄鹑×小型雌家鹑的效果最好。

Results of interpopulation crossing test of mating, fertilization rate, embryo growth and hatchability under the condition of cage feeding indicated that:(1) due to difference in body size, morphology, habits and characteristics and reproducing season, crossing fertility between wild Japanese quail in China and domestic quail population was lower than that of intrapopulation mating, but fertilized egg through reciprocal crossing could be incubated and produced F1 without prezygotic isolation;(2) crossing of wild male quail ?female small-type domestic quail produced the best effect among all combinations of reciprocal crossings.

通过关于笼饲环境下交配行为、受精率、胚胎发育、种蛋孵化率的种群间杂交试验证明：由于体量、形态、习性、繁殖季节性的差异，我国境内的野生日本鸣鹑与家鹑群体之间的杂交能育性低于同种群交配水平，但可以实现正、反杂交，产生受精卵、孵出杂种一代，不存在合子前生殖隔离；在正反杂交组合中，以野雄鹑X小型雌家鹑的效果最好。

Chuang Tzu said, Baili Xi had no utilitarianism so he bred his cattle based on the cattle's interest. He didn't feed anti-bio to his cattle; he didn't inject his cattle with fatten dosage; he didn't breed them in byre.

庄子还说：「百里奚心中不具功利主义，所以，他养牛时，以牛本身的利益作为为出发点，他既不会喂它吃抗生素，也不会打催肥针，更不会将之围在兽栏里。

Levels of the antibody in the cattle re-vaccinated on days 15 and 60 post-PI were higher than that in the primarily-immunized cattle,the cattle belonging to protection range of 50% made up 56.3% and 63.1%, and the cattle belonging to protection range of 100% made up 34.3% and 29.5%,respectively.

结果，首免后第15d加强免疫牛和第60d加强免疫牛抗体水平较高，50%保护牛所占比例分别为56.3％和63.1％，完全受保护的牛所占比例分别为34.3％和29.5％。第60d加强免疫牛的保护率要高于第15d加强免疫牛和一次免疫牛的保护率。

Major suppliers, Charolais cattle, Limousin cattle, Friesian dairy cattle, fattening cattle, Small Tail Han sheep, Boer goats, Suffolk sheep, milk goats, Dorper sheep, Rex Rabbit, rabbit meat, wool-rabbit and other animals species.

主要供应、夏洛莱牛、利木赞牛、黑白花奶牛、育肥牛、小尾寒羊、波尔山羊、萨福克羊、奶山羊、杜泊绵羊、獭兔、肉食兔、长毛兔等畜种。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。