查询词典 bovine

The three types of reconstructed embryos(reconstructed embryo of goat-rabbit, goat-bovine and goat-goat) were produced respectively by nuclear transfer using goat ear firbroblast cells as donors and rabbit, bovine and goat ooctyes as recipients, and the factors of cytoplast environments influencing cloned embryo development in vitro, cytoplast effect in nuclear transfer, the methods of transferring cloned embryo and the effects of pregnancy factor on implantation of cloned embryo were studied in this experiment, in order to supply basis for solving the difficulty of implantation of inter-species cloned embryo in recipient and improving the efficiency of cloning.

本试验以波尔山羊耳成纤维细胞为供体，分别以牛、羊、兔的卵母细胞为受体进行体细胞核移植，构建了山羊-兔、山羊-牛和山羊-山羊三种重构胚。研究了不同的胞质环境对重构胚体外发育的影响与核移植中的胞质效应，并对异种克隆胚胎采用了去透明带移植和配种后再移植的方法，探讨移植方法和妊娠因子对异种克隆胚胎在受体动物体内发育的影响，旨在为解决异种克隆胚移植不易着床发育的难题和为提高动物克隆效率提供理论依据。

The experiment results were as following:All cytoplast recipients derived from oocytes of rabbit, bovine and goat can support early development of cloned embryo, the fusion rate of reconstructed embryos of goat-bovine and goat-rabbit were 59.91% and 74.10%, their cleaved rate were 57.48% and 72.57%, blastocyst rate were 9.59% and18.06% respectively, and the fusion of reconstructed embryos of goat-rabbit and goat-goat were 60.01% and 74.10%, their cleaved rate were 56.68% and 72.57%, blastocyst rate were 11.76% and18.06% respectively.

试验获得了如下结果：1。以山羊耳成纤维细胞为供体，以牛、羊、兔卵母细胞做为胞质受体构建重构胚，并经体外培养，发现不同的胞质受体均能支持重构胚的早期发育，但受体胞质对重构卵的重构胚早期发育速度和卵裂率均有显著影响。

Using the modern immunology experiment technology and the equipment carry on in-depth, careful, objective research to confirm immunoloregulation effect of bovine colostrum, which will certainly has the vital significance to health foods development of bovine colostrum, down to the entire dairying development.

利用现代免疫学实验技术及设备对牛初乳的免疫调节作用进行深入、细致、客观的研究，验证牛初乳的免疫调节功效性，这必将对牛初乳保健食品的开发，以至于整个乳业的发展具有重要的意义。

The objective of the study was to obtain the gene of bovine enterokinase light chain,which would be used in the cleavage and purification of fusion proteins.The fragment of bovine enterokinase light chain cDNA was obtained by RT-PCR from a sold bovine′s duodenal mucosa, then cloned into the pUCmT cloning vector and sequenced.Compared with the sequence deposited in GenBank,the cloned gene sequence is correct.

为克隆表达牛肠激酶轻链编码基因，以期应用于融合蛋白的切割与纯化，从市售北方黄牛十二指肠组织中提取总RNA，以RT-PCR方法扩增其cDNA片段，将此片段克隆于pUCmT载体中，经过特异性限制性内切酶酶切分析片段正确后，进行全序列分析。

Enzootic bovine leukemia is a virus disease caused by bovine leukemia virus.

流行性牛白血病是由病毒引起的牛的一种慢性肿瘤性疾病。

The cells were cultured under the following serum microenvironment. The primary cells of autoserum group were cultured with autoserum, changing the medium with fetal bovine serum after passage. The primary cells of homogeneity foreign serum group were cultured with homogeneity foreign serum, changing the medium with fetal bovine serum after passage. The primary cells of fetal bovine serum group were cultured with fetal bovine serum, and cultured with fetal bovine serum after passage. The primary cells of Dulbecco's modified Eagle's medium group were cultured with serum-free DMEM, changing the medium with fetal bovine serum after passage.

分别以下列血清微环境培养：自身血清组：分离细胞后原代用含大鼠自身血清的培养基培养，传代后换用含胎牛血清的培养基培养；同种异体血清组：分离细胞后原代用含同种异体血清的培养基培养，以后用胎牛血清培养基培养；胎牛血清组：分离后用含胎牛血清培养基培养，以后一直用含胎牛血清培养基培养；DMEM组：分离细胞后原代用不含血清的DMEM培养基培养，传代后换用含胎牛血清的培养基培养。

Above all, Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli are the main pathogens causing bovine subclinical mastitis; the bovine clinical mastitis is usually caused by Streptococcus agalactiae. Antibiotics such as Enrofloxacin, Erythromycin and Kita sermonic show effective on treatment; the preparation of Chinese traditional medicine has great potential on bovine mastitis treatment and should be widely spread.

实验结果说明：引起奶牛隐性型乳房炎的主要致病菌类型为无乳链球菌、金黄色葡萄球菌和大肠杆菌，引起临床型乳房炎的主要致病菌是无乳链球菌；抗生素中的恩诺沙星、红霉素、庆大霉素用来治疗奶牛乳房炎效果较理想，中药制剂在治疗乳房炎上应用潜力很大，应大力推广。

A complete bovine 18ku-bFGF gene was cloned by nested-PCR and subcloned into expression vector pET-28a.The recombinant plasmid pET-28a-bFGF was transformed into Escherichia coli BL21.At 25℃,recombinant protein was induced by 0.5mmol/L IPTG for 5 hours.Supernatant of cell lysate was purified using Ni-NTA method and the products was submitted to detect the bioactivity by Western-blotting,which indicated that the fusion protein contained recombinant bovine bFGF.Results showed that recombinant bovine bFGF was produced and solubly existed in the supernatant.NIH-3T3 fibroblasts were used to detect the bioactivity of the fusion protein.

采用巢式PCR方法克隆了牛18ku-bFGF基因完整的编码序列，并构建了原核表达载体pET-28a-bFGF，将其转化大肠杆菌BL21，在25℃低温条件下，用0.5mmol/L IPTG诱导表达5h，用Ni-NTA亲和纯化细胞裂解上清液，经Western-blotting检测，结果显示，在特定的诱导条件下，重组牛bFGF基因在大肠杆菌中获得了表达，并且主要以可溶性状态存在于细胞中。

ResultsRecombinant bovine prochymosin was not significant difference in molecular weight,immune characteristics, bioactivity and sensitivity of inhibitors comparison to nature bovine prochymosin.The milk-clotting activity of recombinant bovine prochymosin was 2×103 international milk-clotting unit per millilitre.

重组牛凝乳酶原与天然牛凝乳酶原比较，其分子量大小、免疫性质、生物活性和抑制剂敏感性没有发现显著差异，其凝乳活性可达2×103 IMCU/mL。

Bovine leukocyte adhesion deficiency is a haematogenous recessive disease of Holstein cattle.

牛白细胞粘附缺陷病(bovine leukocyte adhesion deficiency， BLAD)是一种牛的造血系统遗传性疾病。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。