共查询到20条相似文献,搜索用时 80 毫秒
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柳州市沙塘镇某村一农户的一批 2— 3月龄的美国皇鸽 (共 1 0 0对 )在饲养中发生鸽痘。经采取隔离、免疫及治疗措施后 1周 ,疾病得到控制。现将诊治经过报告如下。1 发病情况起初 ,病鸽精神不振 ,羽毛松乱 ,呼吸困难 ,食欲减少 ,部分鸽拉水样粪便 ,少数拉黄绿色稀粪 ,消瘦、脱水。最后 ,少数鸽眼睑、嘴、鼻瘤等少毛的皮肤上长有芝麻大小的痘疹 ,走路时有震颤 ,不喜飞 ,头伸缩痉挛 ,饮欲大增。病重者爪、关结部有黄豆、玉米大的淡黄干燥坚硬痘 ,废食呆立 ,张口呼吸 ,翅膀下垂 ,眼结膜流泪发炎 ,眼睛半闭半开甚至失明。根据病鸽发生在眼睑、… 相似文献
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鸽痘是鸽的一种皮肤和黏膜形成一层痘痂为特征的传染病 ,由痘病毒引起。皮肤型的鸽痘多在喙角、眼角、腹部等无毛部位形成结节状痘痂 ;黏膜型鸽痘在口腔黏膜形成痘块或溃疡。前者影响胴体感官性状 ,后者则引起鸽机械性窒息死亡 ,但不管是哪种类型 ,其组织学特征均是上皮细胞增生、肿大 ,产生炎症反应。该病尚没有疫苗可用。有人用鸡痘疫苗免疫肉鸽预防鸽痘 ,但效果并不理想。鸽痘净是一种具有抗炎作用的纯中药制剂 ,资料表明组成鸽痘净的中药成分具有抗痘病毒功能。我们拟将该方剂在临床上加以应用 ,以评价该产品对鸽痘的防治效果。1 材料… 相似文献
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谭大茂 《上海畜牧兽医通讯》2002,(2):43-43
20 0 1年 5月我县某鸽场饲养的 65 0羽乳鸽 ,有 1 5 0羽发病 ,发病率达到 2 3 .1 % ,并伴有零星死亡 ,确诊为鸽痘病。我县发生鸽痘病尚属首次。1 临诊症状根据病变部位不同 ,将病鸽分为三种类型 ,皮肤型、白喉粘膜型和混合型。 (1 )皮肤型 :病乳鸽眼睑周围、喙角、鼻瘤、肛门、腿脚及两翅内侧等处出现灰白色小结节 ,有的小结节已变成棕褐色结痂。 (2 )白喉粘膜型 :病乳鸽喙部和咽喉粘膜上形成一层黄白色干酪样膜 ,恶臭 ,不易剥离。病鸽呼吸和吞咽障碍 ,表现张口呼吸、不愿采食 ,并伴有少量死亡。 (3 )混合型 :有少量的病鸽全身出现灰白色小… 相似文献
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1 临床症状。病鸽的眼睑、鼻部、嘴角、翅膀内外两侧、肛门周围和羽毛稀少的皮肤上,有绿豆至黄豆大小的棕褐色至灰褐色的、凹凸不平的硬实小结节痘痂,有的病鸽皮肤上的痘痂被细菌感染而发脓。病鸽眼肉有干酪样物质,有的单侧眼睁不开,个别患鸽单侧眼失明,病鸽表现精神萎顿.呆立脚软,头低垂,翅膀松散下垂,食欲减少或废绝。患鸽肛门周围的羽毛黏有粪便,部分病鸽呼吸困难.机体衰弱以至死亡。 相似文献
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本试验比较了3日龄及7日龄旋毛虫成虫可溶性抗原的免疫原性,比较了不同佐剂对免疫效果的影响,观察了不同免疫途径对免疫效果的影响及疫苗的免疫持续期。结果表明,3日龄及7日龄成虫可溶性抗原免疫猪所诱导产生的免疫力接近,说明免疫原性基本一致。以白油—司班佐剂乳化抗原的免疫效果优于弗氏完全佐剂(FCA)乳化抗原,其减虫率分别为86.3乏%与70.22%2而且白油—司班佐剂苗的粘稠度适中,便于注射。免疫途径对免疫效果的影响,以成虫可溶性抗原经腹腔注射(IP)的免疫效果优于肌肉注射(IM)。疫苗保存于4℃6个月不影响其免疫效力。猪免疫接种成虫可溶性抗原疫苗后免疫持续期至少6个月。 相似文献
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INFECTION STUDIES ON A RETICULOENDOTHELIOSIS VIRUS CONTAMINANT OF A COMMERCIAL MAREK''S DISEASE VACCINE 总被引:8,自引:0,他引:8
Reticuloendotheliosis virus (REV) was isolated in cell cultures from commercial Marek's disease (herpesvirus of turkeys) vaccine and re-isolated from the organs of vaccinated chickens. Runting and feathering abnormalities were produced when 1-day-old specific pathogen free chickens were inoculated with REV. Histopathological lesions in infected chickens were hypoplasia of the thymus, bursa and spleen, and inflammation of the proventriculus, kidneys and liver. Serological responses to REV were detected by the indirect immunoflorescence test in chickens directly inoculated with contaminated vaccine, and spread of REV infection to in-contact chickens was demonstrated by histopathological and serological investigations. 相似文献
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为了解鸡毒支原体(Mycoplasma gallisepticum,MG)F弱毒疫苗株的细胞免疫特性,分别以活菌浓度为109(A组)、106(B组)ccu/mL的MG F株及生理盐水(C组)点眼接种SPF鸡,采用流式细胞技术及T淋巴细胞增殖试验对免疫前后淋巴细胞亚类Th/T、Tc/T、Th/Tc及刺激指数(SI)的动态变化规律进行研究。结果显示免疫后A、B组的Th/T、Tc/T、SI明显升高,其中Th/T于d5、d7,Tc/T、SI于d7、d14,A组显著高于B组(P〈0.05)。研究结果表明,免疫MG F株可较好的提高鸡的细胞免疫,且MG F株活菌浓度与接种鸡外周血Th/T、Tc/T、SI呈正相关。 相似文献
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丝胶的胶着性与胶凝有密切的关系。在一定的条件下,丝胶分子相互藉氢键的结合而发生凝集,形成束状的网络结构,分子结构由无规卷曲转化为β构象,失去流动性而发生胶凝作用,随着胶凝作用的进行胶着力增强并固化。高温多湿环境中蚕儿吐丝时由于水分发散难,长时间处于多湿环境中,丝胶分子由无现卷曲转化为β构象,丝胶发生胶凝作用,干燥固化而被覆于茧丝表面。丝胶的强度、胶着力相对增加,茧丝剥离抵抗强,蚕茧解舒就变劣。因此,相对优良的营茧环境是控制丝胶分子不发生构象转化、胶凝作用,生产优质蚕茧的有效途径。 相似文献
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Studies on the treatment and control of equine allergic dermatitis, a disease associated with the development of a hypersensitivity to the sandfly Culicoides robertsi (Lee and Reye) are reported.
Sandfly attack could be prevented by stabling the animals in an insectary from 4 p.m. to 7 a.m. during the warmer months of the year. Good protection was also obtained by spraying weekly during this period with 1 per cent. or 2 per cent. DDT. The higher concentration gave better protection during rainy weather and on short haired animals.
Treatment with the histamine azoprotein, "Hapamine", at specified intervals caused a rapid recession of lesions in five of six animals and four animals showed a complete recovery.
Trials with antihistamines applied as creams or intramuscularly showed that these preparations could be expected to. relieve the irritation but were too costly to use. 相似文献
Sandfly attack could be prevented by stabling the animals in an insectary from 4 p.m. to 7 a.m. during the warmer months of the year. Good protection was also obtained by spraying weekly during this period with 1 per cent. or 2 per cent. DDT. The higher concentration gave better protection during rainy weather and on short haired animals.
Treatment with the histamine azoprotein, "Hapamine", at specified intervals caused a rapid recession of lesions in five of six animals and four animals showed a complete recovery.
Trials with antihistamines applied as creams or intramuscularly showed that these preparations could be expected to. relieve the irritation but were too costly to use. 相似文献