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动物医学和人类健康论文范文英文版

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2018aabb

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学术性的还是用来毕业用的。

动物医学和人类健康论文范文英文版

151 评论(14)

abc140821

给你贴一个吧,不知道你能不能用:当前猪高热复合症的治疗方法及预防对策近几年,猪的高烧不退,即所谓的猪“高热复合症”发生较多,给养猪业带来严重的损失,以致许多猪场倒闭,许多农户不敢养猪。猪高热复合症是由多种病原体引起的一种以病猪持续高温、食欲废绝、皮肤发红为主要特征的复合性传染病,主要有猪附红细胞体病、猪伪狂犬病、非典型性猪瘟、蓝耳病、圆环病毒病、传染性胸膜肺炎等引起,多为混合感染或继发感染。该病自去年六月份发病以来,发病状况及发病原因与往年不同,出现了一些新特点,因而在诊断和治疗我们研究所总结了一些切实可行的治疗方法及预防对策,现介绍如下,供同行参考:1 主要临床症状病猪体温升高40OC-42OC,食欲减退或废绝,精神沉郁,淌眼屎,卧地不起,运动失调,呼吸急促,鼻流清涕,粪便干硬,小便发黄,全身皮肤发红,或腹部、耳尖发绀;或在耳根、腹部、四肢内侧等处出现紫红色血点;或眼圈青紫,肛门周围青紫。个别猪发病数天后皮肤黄染或苍白,少部分猪毛孔针尖状出血。有的猪腹泻,发抖、消瘦。四肢、眼睑周围水肿,体表淋巴结肿大。公猪不育,母猪不易受孕,怀孕猪易早产,死胎、木乃伊胎。2 剖检变化 从对病猪剖检情况来看,病猪的病变以肺部变化为主,肺脏有的苍白,有的有出血点、出血斑;有的肺脏水肿,呈斑驳状到褐色大理石样病变,有的实质变性,如海绵状,可在水中飘浮;有的似水煮状;更有很多病猪的肺脏多处部位肉变,特别是尖叶、心叶和膈叶的前缘,,部分病变肺叶支气管内充满脓性分泌物;气管内有较多的泡沫,部分气管环黏膜充血。心肌有出血点,心包积液,为淡黄色液体。肝脏有的灰白色;有的有坏死灶;有的有出血点,有的肿大变性呈黄棕色,表面有黄色条纹状或灰白色坏死灶。肾脏肿大、呈褐色或土黄色,质地较脆,有淤血现象;有的有大量针尖状出血点;有的表现典型的大理石样花纹;有的有坏死点、坏死斑。脾脏肿大、边缘有多处梗死灶。胃充血、出血;部分猪胃底粘膜出血、坏死、溃疡,回盲肠有大量溃疡灶。肠出血严重,特别是小肠和结肠多数有坏死灶。淋巴结广泛肿大,特别是腹股沟淋巴结和肺门淋巴结。部分病猪喉头粘膜水肿、出血,猪膀胱粘膜出血。个别患猪表现多发性浆液纤维素性胸膜炎和腹膜炎。3 实验室检查情况 猪瘟、猪流感和饲料霉菌毒素检测采用ELISA方法检测,猪繁殖与呼吸综合征病毒(PRRSV)、伪狂犬病毒(PRV)、猪圆环病毒(PCV-Ⅱ)用RT-PCR(聚合酶链式反应)方法检测,分离到的细菌用生化试验鉴定,弓形体、附红小体的检测分别用脾触片和血涂片进行检查。从实验室检查情况来看,通过对部分发病猪场进行的实验室检测结果发现,猪高热复合症今年的发病状况与往年(2001年-2005年)不同,2005年前在临床中主要以附红细胞体感染为主,少见附红细胞体与蓝耳病、伪狂犬、链球菌等病混合感染;而今年六月份以后,蓝耳病、伪狂犬、圆环病毒的发病率明显高于去年。病毒以猪繁殖与呼吸综合征病毒(PRRSV)、猪圆环病毒(PCV-II)、猪流感病毒(SIV)、伪狂犬病毒(PRV)猪瘟病毒(HC)、为主,细菌主要为猪胸膜肺炎放线杆菌(APP)、副猪嗜血杆菌病(HP)、猪链球菌属2型(SS-II)、多杀性巴氏杆菌(PM)等。
278 评论(11)

weegrg

以“如果我掌握了克隆技术”为题,写一篇作文If I have mastered cloning technology, I think for the benefit of mankind, there is a need for the patient to clone their required human Entering the hospital ward, a patient groaned in pain, I went into their clone The first patient to clone a I use the machine to check his heart gene and shape, and then in the computer drawing of a heart with him as like as two peas, I was not to be Because the heart is all the most critical organs, can not tolerate But I think before doing so many cloned cardiac operation, he is confident to Half an hour later, cloned cardiac completed, then the task is more formidable, I put the oxygen input in And then through the advanced equipment to his heart and I clone good heart phase exchange, will I am a little It is also useful in cardiac patients, only the degeneration of cardiac So I went through the device will heart storage is good, wait until the next patients in need of a heart, can come in I wish I could master the cloning technology, then I must realize this great 假如你是李华,你的朋友Peter来信咨询如何学好英语,根据以下要点回信: 参加中文学习班 看中文书刊、电视 学唱中文歌曲 交中国朋友
276 评论(9)

ohsolo

Last summer, my family and I went to Hawaii for a holiday! We flew across the Pacific to the tiny island from B After we booked into a hotel, we Our fun started the next day and lasted for two long During our time there, we ate delicious exotic food and drank numerous fruit The Hawaiians are very proud of their unique food, often 'spiced up' with slices of juicy pineapple and strings of delicious There were also fantastic beaches right accoss the tiny Last summer, my family and I went to Hawaii for a holiday! We flew across the Pacific to the tiny island from B After we booked into a hotel, we Our fun started the next day and lasted for two long During our time there, we ate delicious exotic food and drank numerous fruit The Hawaiians are very proud of their unique food, often 'spiced up' with slices of juicy pineapple and strings of delicious There were also fantastic beaches right accoss the tiny The water was sparkling blue and the sand dunes radiated with an inviting warmth of The place was wonderful and the locals were really nice; I really enjoyed my The water was sparkling blue and the sand dunes radiated with an inviting warmth of The place was wonderful and the locals were really nice; I really enjoyed my
135 评论(15)

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