發(fā)布時間：2018-06-12 01:37

  本文選題：華南虎 + 死胎�。� 參考：《東北林業(yè)大學(xué)》2015年碩士論文

【摘要】：華南虎(Panthera tigris amoyensis)是中國的特有虎種,并于1996年被世界自然保護(hù)聯(lián)盟列為極度瀕危物種,因華南虎野生種群幾近消失存在野外滅絕的可能,使其成為目前世界上最受威脅的老虎亞種。而華南虎人工種群存在嚴(yán)重的近交衰退,主要表現(xiàn)為高死產(chǎn)率。研究發(fā)現(xiàn),死產(chǎn)胎兒發(fā)育正常,妊娠和分娩過程也正常,死亡主要發(fā)生在臨產(chǎn)或產(chǎn)中。我們推測死產(chǎn)的原因可能是分娩過程中胎盤早剝,導(dǎo)致胎兒供氧受阻而發(fā)生乏氧窘迫或死亡。為了證明上述推斷,我們以華南虎死胎為研究對象,產(chǎn)后5h死亡的華南虎幼虎及東北虎死胎作為對照組,利用HE染色定量分析死胎肺結(jié)構(gòu),比較各組間肺泡線性截距Lm值并進(jìn)行虎死胎肺部病理分析。以通過定量分析華南虎死胎肺結(jié)構(gòu)確認(rèn)胎兒在臨產(chǎn)或產(chǎn)中由于供氧受阻而發(fā)生乏氧窘迫或死亡,并分析華南虎死胎窒息的病因和機(jī)制進(jìn)而推測死胎死亡的原因。其中華南虎雄幼虎Lm值最大,華南虎雌虎死胎Lm值次之,東北虎死胎Lm值最小,且各組間差異顯著具有統(tǒng)計學(xué)意義(P0.05)。HE染色組織學(xué)觀察華南虎雌虎死胎肺泡腔內(nèi)檢出羊水成分。確定了華南虎死胎在臨產(chǎn)或產(chǎn)中供氧受阻而發(fā)生乏氧窘迫、遭受乏氧打擊。初步推測華南虎死胎可能是由于在分娩期間,胎盤發(fā)生類似胎盤早剝等功能障礙,從而使胎兒受到嚴(yán)重的乏氧打擊,發(fā)生乏氧窘迫至其在娩出前死亡。
[Abstract]:The South China tiger Panthera tigris amoyensis is a endemic tiger species in China and was listed as an extremely endangered species by the World Conservation Union in 1996. Make it the most threatened tiger subspecies in the world. However, the artificial population of South China tiger has a serious inbreeding decline, which is mainly characterized by high stillbirth rate. It was found that stillborn fetus developed normally, pregnancy and delivery were normal, and death occurred mainly in labor. We speculate that the cause of stillbirth may be placental abruption during delivery, resulting in fetal hypoxia distress or death. In order to prove the above inference, we took the dead fetus of South China tiger as the research object, and the dead infant of the cub and the Siberian tiger died at 5 hours postpartum as the control group. The lung structure of the dead fetus was quantitatively analyzed by HE staining. The alveolar linear intercept (LM) was compared among the groups and the lung pathology of the dead fetus was analyzed. In order to confirm the fetal hypoxia distress or death in labor or labor by quantitative analysis of lung structure of dead fetus of South China tiger, and analyze the cause and mechanism of stillbirth asphyxia in South China tiger, and then speculate the cause of death of stillbirth. Among them, the Lm value of male cub of South China tiger was the largest, that of female tiger of South China tiger was the second, that of dead fetus of Amur tiger was the least, and the difference among the groups was statistically significant (P 0.05) .HE staining was used to observe the amniotic fluid in the alveolar cavity of dead female tiger of South China tiger. It was determined that the dead fetus of South China tiger suffered from hypoxia and was hit by hypoxia due to the obstruction of oxygen supply in labor or labor. It is preliminarily speculated that the dead fetus of South China tiger may be due to the placental dysfunction such as placental abruption during delivery, which makes the fetus suffer from severe hypoxia and die before delivery.
【學(xué)位授予單位】：東北林業(yè)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：S858.93

【參考文獻(xiàn)】

相關(guān)期刊論文 前8條

1 余美佳;李俊男;王琳;劉穎蔚;常青;;119例胎盤早剝的臨床分析[J];實(shí)用婦產(chǎn)科雜志;2011年02期

2 王丁,劉仁俊,趙慶中,楊光,徐信榮,黃宗國,辛建軍,陳丙煜;一頭中華白海豚的病理解剖及死因分析[J];獸類學(xué)報;2003年02期

3 路健;王伶;;石蠟切片制作中的問題與解決[J];山西醫(yī)科大學(xué)學(xué)報(基礎(chǔ)醫(yī)學(xué)教育版);2001年03期

4 阮建波，何洪標(biāo)，，田宋先;快速石蠟切片的探討[J];實(shí)用醫(yī)學(xué)雜志;1994年06期

5 謝圖強(qiáng);何勉;陸兆游;;胎盤早剝82例臨床分析[J];新醫(yī)學(xué);2007年11期

6 馬逸清,閆文;老虎保護(hù)進(jìn)展[J];野生動物;1998年01期

7 楊廣英,張穗,孫麗,李軍;幾種快速石蠟切片技術(shù)的比較[J];診斷病理學(xué)雜志;2002年06期

8 李海,李福祥,沈謐;組織制片方法的改進(jìn)及體會[J];中國基層醫(yī)藥;2001年02期

本文編號：2007665