Because callow birds had not be marked with rings in the early period of protection , the pedigree was confused . so , it is very difficult to carry out artificial pairing . for its reference value to set reasonable breeding plan , the pedigree chart constructed by us can be applied in the protection to crested ibis . according to a good breeding project , inbreeding can be avoided and gene exchange can be increased 由于在朱?保護的初期階段未能對離巢幼鳥進行環志,故現存朱?的譜系關系混亂,給人工選種配對帶來了困難;我們所構建的譜系圖可以在一定程度上應用到西北大學碩士學位論文沐潭鳥保護的實際工作中,為合理地制定繁殖考。
Otherwise , in this paper , it will introduce the feature of ic chips , the key point on pcb design , the importance of making signal integrity , and the usage of the ibis modular . it will introduce the knowledge of i2c bus protocol , dsp / bios , usb2 . 0 portocol , windows driver model , dirverworks , and inf 本文對應用器件的功能與特點、 pcb設計的要點、所涉及到的信號完整性分析和ibis模型、 i2c總線協議、 dsp / bios 、 usb2 . 0通信標準、 wdm驅動程序模型、 driverworks開發及inf制作等多方面的知識,進行了簡要的介紹。
The main results as follows results from sinoatrial node in vivo 1 、 under bilateral vagi intact condition the value of hf ( high frequency power ) component , lf ( low frequency power ) component and apen value of ibis was the highest , but the lf / hf ratio was the lowest ; unilateral vagotomy decreased apen value of ibis , right vagotomy increased lf / hf ratio but left vagotomy did not 05 ) 。在離體竇房結還記錄到自發輕度不規則放電,自發不規則放電使竇房結放電間期近似嫡從對照時的0二8土0 09 ( n 6 )升高到不規則放電時的0
After purification using glutathione sepharose 4b affinity chromatography and digestion with thrombin , the recombinant ntfs were found to be biologically active in the pc 12 cells neurite outgrowth assay . the assays demonstrated that the purified ntfs proteins exhibited normal activity , which is the first step in developing a comprehensive gene therapy for nerve diseases of the giant panda and the crested ibis 最后,對重組表達蛋白經glutathlonesepharose4bmicrospincolumn親和純化后,進行大鼠腎上腺嗜鉻瘤細胞( p2 )神經營養因子的活性鑒定,發現其能夠誘導神經細胞分化產生突觸,即具有預期的生物學活性,表明所獲表達蛋白為大熊貓nt
Research on the egrets mixed population in xiamen egret natural reserve found that the reserve and its extending area provided the population fitting conditions through winter . the dominating component is little egret ( elpetta garzetta ) and there were some large egret ( egretta alba ) , cattle egret ( bubulcus ibis ) and few chinese egret ( egrtta eulophotes ) 2000 2001年,對廈門白鷺自然保護區的鷺類種群動態研究表明,保護區及其周邊地區為鷺類種群提供了優良的越冬條件,越冬鷺群主要包括白鷺和少量牛背鷺與大白鷺,偶見黃嘴白鷺。
Although the gene therapy of the human nerve system diseases are still in exploring so far , and similar studies applied to the wild animals have not even been reported , this study will inevitably provide clues for futher studies on the gene therapy in the giant panda and crested ibis 目前,雖然對人之癲痛與視神經病變類疾病的基因治療尚處于探索階段,而動物在此領域的工作尚未起步,但本文所完成的大熊貓和朱鶴神經營養因子( ntfs )基因家族的克隆、表達及活性鑒定工作,無疑為后續的深入研究奠定了基礎。
Because of the method is convenient and fast , and no molecular information about the species to be studied is needed , rapd is widely used in many areas such as study of phylogenetic tree and genetic diversity . we studied 32 crested ibises from yong county and 5 crested ibises from beijing zoo by rapd 我們采用rapd技術對來自洋縣的32只朱?和來自北京動物園的5只朱?進行了研究,根據實驗數據計算了任意兩個個體之間的相似性系數和遺傳距離,分別用upgma法和簡約法構建出其譜系關系,并對種群的遺傳多樣性作了初步的探討。
By the end of 1995 china had set up 175 zoological gardens and zoological exhibition sites in public parks , 227 artificial breeding centers for wild animals , more than 60 large botanical gardens and 255 wild plant gene and cell banks to ensure the continuation of rare and endangered species of plants and animals , including the giant panda , chinese alligator , chinese sturgeon , white - flag dolphin , manchurian tiger , crested ibis , cathay silver fir , dovetree , cycas revoluta and camellia chrysantha tuyama 到1995年底,中國共建動物園和公園動物展區175個、各種野生動物繁殖中心(場) 227個,建立大型植物園60多個、野生植物引種保存基地255個,使大熊貓、揚子鱷、中華鱘、白暨豚、東北虎、朱? 、銀杉、珙桐、蘇鐵、金花茶等珍稀瀕危動植物得到保護。