共查询到20条相似文献，搜索用时 421 毫秒
1.
弧菌性肝炎是因鸡感染空肠弯曲杆菌而发生的一种肠道和生殖道传染性疾病.鸡感染弧菌性肝炎后,虽然死亡率较低,但对鸡的健康及鸡蛋品质影响较大.为有效提升鸡弧菌性肝炎治疗效果,根据鸡弧菌性肝炎的流行病学特征和临床症状,结合实际总结具体防治措施,以供参考. 相似文献
2.
1疾病概述鸡弧菌性肝炎又称鸡弯曲杆菌性肝炎、传染性肝炎,主要由空肠弯曲杆菌引起的幼鸡和成年鸡的一种传染病。本病以肝出血、坏死性肝炎伴有脂肪浸润,发病率高,死亡率在1～10%,若有其它病混合感染,发病率可高达20～30%。 相似文献
3.
4.
5.
食菌蛭弧菌的分离鉴定初报 总被引：1，自引：0，他引：1
从鸡场三批鸡粪便的污水中，以鸡大肠杆菌Ｏ５０、新分离的鸡大肠杆菌和鸡白痢沙门氏菌作为被捕食菌，分离出二株食菌蛭弧菌，这些蛭弧菌在３０℃中培养３￣５ｄ出现蚀斑，以后蚀班面积逐渐扩大。 相似文献
6.
采用鸭肝炎弱毒疫苗和油乳剂灭活疫苗免疫肉鸭,制备抗鸭病毒性肝炎高免血清,其鸡胚中和抗体效价达１∶６４ 以上,对雏鸭病毒性肝炎的临床治愈率达８０％ 以上。 相似文献
7.
1．发病情况辽中县某养鸡户2003年5月21日从外地购进经过马立克疫苗接种1日龄杂交雏鸡2000只，采用室内大电灯泡保温育雏，饲料按鸡的生长特点配制。10日龄作新城疫Ⅱ系疫苗滴鼻免疫。6月14日(即25日龄)开始出现病鸡，由于没有及时确诊，患雏陆续死亡。6月22日，笔者临诊时已死亡鸡105只，占25日龄成活雏鸡的5.4％(105／1961)。在确诊为弧菌性肝炎后，经用庆大霉素肌注，喹乙醇拌料和卡那霉素饮水，控制了疫情。 相似文献
8.
[目的]深入了解鸡大肠杆菌病的病理组织学变化.[方法]试验采用流行病学调查、临床症状观察、病理剖检观察、实验室诊断和石蜡组织切片制作等方法对昌黎县某鸡场发生的一起蛋鸡以心包炎、肝周炎为主要特征的疾病进行诊断和病理组织学观察.[结果]试验分离到的病原菌为大肠杆菌;患病蛋鸡的病理组织学变化表现为:心脏呈心肌细胞变性、炎性细胞浸润;肝脏呈纤维素性肝周炎和坏死性肝炎;脾脏呈淋巴细胞减少、炎性细胞浸润;肺脏呈充血、淤血,肺房内存在红细胞;肾小球毛细血管透明变性;小肠粘膜上皮细胞脱落.[结论]该研究为鸡大肠杆菌病的诊断和防治提供了科学依据. 相似文献
9.
经研究证明近年来在某些肉联厂发现的不明原因的肉用仔鸡肝肿大,是鸡感染次睾吸虫所致。鸡次睾吸虫的主要病变是胆管炎及胆管周围炎、间质性肝炎和肝脏的灶状坏死。 相似文献
10.
《甘肃农业大学学报》1959,(4)
选取毒力一致的四株腐败弧菌,以生理盐水作成不同稀释度,以0.1毫升接种于10日令鸡胚的绒毛尿囊膜上,于37——38°下经一昼夜以其死亡与否判定结果,并以海猪、小白鼠作为对照,海猪肌肉注射1毫升,小白鼠0.3毫升。结果表明鸡胚对四株腐败弧菌均有高度 相似文献
11.
高位虾池水体细菌和弧菌的数量变化及影响因素 总被引：1，自引：0，他引：1
研究了位于广东湛江东海岛北寮村和庵里村的4个凡纳滨对虾（Penaeus vannamei）高位池养殖过程水体中的可培养异养细菌和弧菌的数量变化及其影响因素.结果表明：1）北寮村虾池BL1和BL2的可培养异养细菌数量变化均呈现中间高两头低、后期多于初期的单峰变化趋势;BL1的弧菌数量变化趋势和可培养异养细菌的变化趋势相似,而BL2则是前期稍微升高而后下降,后期又呈升高态势,峰值出现在养殖末期;水源地BL3的可培养异养细菌数量变化为初期平缓,后期明显多于初期,大体呈上升态势;而BL3弧菌数量变化趋势则比较平缓.2）庵里村发病的虾池AL1的可培养异养细菌和弧菌数量呈现出单峰变化趋势,在养殖中途爆发病害时,可培养异养细菌数量高出未发病的正常池2个数量级;庵里村虾池AL2的可培养异养细菌数量变化趋势也是中间高两头低,而弧菌的数量变化则是无规律的波动;水源地AL3的可培养异养细菌数量变化大体呈下降趋势,弧菌数量放养初期最高.3）高位虾池的可培养异养细菌和弧菌数量虽多于水源地,但差异不显著,同一个位点,细菌和弧菌数量呈现同步增多或减少.虾场水体的可培养异养细菌和弧菌数量与多数环境因子之间相关性不显著,这与虾池养殖生态系统受人为因素影响较大有关,同时反映了高位虾池生态系统受多种因子作用的复杂性. 相似文献
12.
13.
文蛤生物体及内脏中弧菌的研究 总被引：3，自引：0，他引：3
[目的]鉴定文蛤体内弧菌的类型及致病性强度,并筛选治疗这些病原菌的最佳药物。[方法]用TCBS培养基从文蛤生物体内分离出12株弧菌,对其进行致病性试验,对致病性较强的3株弧菌进行鉴定及药物敏感试验。[结果]该3株菌分别为河流弧菌H04（Vibrio fluvialis）,H06副溶血弧菌（Vibrio parahaemolyticus）,H11创伤弧菌（Vibrio vulnificus）,其对环丙沙星、先锋赛高度敏感,对青霉素G、先锋霉素V有耐药性,临床上可以首选环丙沙星、先锋赛作为治疗这些病原菌的药物,其次是头孢曲松、氟哌酸、丁胺卡那、四环素、庆大霉素等。[结论]结果为文蛤疾病的防治提供了理论依据。 相似文献
14.
Study on the Quantity Dynamic Changes of Heterobacteria and Vibrios in Larvae Industrialized Culture System 总被引：4，自引：0，他引：4
MA Yan LI Jian WANG Bin WANG Qun LIU Qi. College of Life Sciences Technology Dalian Fisheries University Dalian . Key Laboratory for Sustainable Utilization of Marine Fishery Resources Ministry of Agriculture Yellow Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Qingdao 《（《农业科学与技术》）编辑部》2008,(2)
[Objective] The dynamic change of heterobacteria and vibrios in larvae industrialized culture system was studied to provide scientific reference for healthy cultivation of shrimp.[Method] The heterobacteria,vibrios and pathogenic vibrio parahaemolyticus were monitored in larvae industrialized culture system.[Result] The heterobacteria,vibrios and pathogenic vibrio parahaemolyticus were the most in fertilized eggs of shrimp but the least in nauplius,then their number would increase with growth. During whole rearing period,both heterobacteria in larvae,vibrios in water would increase by one order of magnitude,while both vibrios in larvae and heterobacteria in water would increase by two orders of magnitude.There were many heterobacteria and vibrios but few vibrio parahaemolyticus in living bait.The correlation coefficients between larvae and heterobacteria and vibrios in water were 0.704 and 0.840 in culture system respectively,while the correlation among heterobacteria,vibrios in living bait and larvae,water were weak or negative.[Conclusion] There was a dynamic relation between water and larvae in rearing period,and restrictly control of culture condition would restrain the occurrence of disease caused by vibrio parahaemolyticus,besides that bacteria number in bait was not obviously correlated with bacteria nubmer in culture system. 相似文献
15.
[Objective] The dynamic change of heterebacteria and vibrios in larvae industrialized culture system was studied to provide scientific reference for healthy cultivation of shrimp. [Method] The hcterobacteria, vibrios and pathogenic vibrio parahaemolyticus were monitored in larvae industrialized cul-ture system. [Result] The heterobacteria, vibrios and pathogenic vibrio parahaemolyticus were the most in fertilized eggs of shrimp but the least in naupli-us, then their number would increase with growth. During whole rearing period, both heterobscteria in larvae, vibrios in water would increase by one order of magnitude, while both vibrios in larvae and heterobacteria in water would increase by two orders of magnitude. There were many heterohacteria and vibri-os but few vibrio parahaemolyticus in living bait. The correlation coeffcients between larvae and heterobacteria and vibrios in water were 0.704 and 0.840 in culture system respectively, while the correlation among heterobacteria, vibrios in living bait and larvae, water were weak or negative. [Conclusion] There was a dynamic relation between water and larvae in rearing period, and restrictly control of culture condition would restrain the occurrence of disceae caused by vibrio parahaemolyticus, besides that bacteria number in bait was not obviously correlated with bacteria nubmer in culture system. 相似文献
16.
《（《农业科学与技术》）编辑部》2008,(2)
[Objective] The dynamic change of heterobacteria and vibrios in larvae industrialized culture system was studied to provide scientific reference for healthy cultivation of shrimp.[Method] The heterobacteria,vibrios and pathogenic vibrio parahaemolyticus were monitored in larvae industrialized culture system.[Result] The heterobacteria,vibrios and pathogenic vibrio parahaemolyticus were the most in fertilized eggs of shrimp but the least in nauplius,then their number would increase with growth. During whole rearing period,both heterobacteria in larvae,vibrios in water would increase by one order of magnitude,while both vibrios in larvae and heterobacteria in water would increase by two orders of magnitude.There were many heterobacteria and vibrios but few vibrio parahaemolyticus in living bait.The correlation coefficients between larvae and heterobacteria and vibrios in water were 0.704 and 0.840 in culture system respectively,while the correlation among heterobacteria,vibrios in living bait and larvae,water were weak or negative.[Conclusion] There was a dynamic relation between water and larvae in rearing period,and restrictly control of culture condition would restrain the occurrence of disease caused by vibrio parahaemolyticus,besides that bacteria number in bait was not obviously correlated with bacteria nubmer in culture system. 相似文献
17.
18.
19.
取五倍子、乌梅等45种中草药,分别采用水提取法和醇提取法制备提取液,除菌后滴加至中6mm空白药敏滤纸片上,制成试验用药敏纸片。测试了提取物对拟态弧菌SM060818、梅氏弧菌SM060813、霍利斯弧菌SM060913等3种分离自锯缘青蟹体外抑菌的效果。结果表明：所试验的45种中药提取物中,有28种中药提取物对试验弧菌表现有抑菌作用;其中五倍子、乌梅、秦皮、艾叶中药提取物抑菌作用较好,对3种菌株均有较好抑菌效果;天冬、白头翁、赤芍、金银花、黄精、黄柏、青蒿等11种中草药提取物仅对2种菌株有较好抑制作用,千里光、穿心莲等17种中药提取物对弧菌无抑制作用;大部分中药抑菌活性成份均为水溶性提取物,青蒿存在明显的醇溶性抑菌物质。测定了五倍子等9种中药提取物对致病弧菌的最低抑菌浓度（MIC）,五倍子、乌梅和天冬3种药物对拟态弧菌和梅氏弧菌的MIC分别为0．172mg／mL、0．461mg／mL、1．042mg／mL,对霍利斯弧菌的MIC分别为0．086mg／mL、0．922mg／mL和1．042mg／mL,有较好的抑菌作用。 相似文献
20.
鳙鳃凝集素的稳定性及细胞凝集作用 总被引：1，自引：0，他引：1
[目的]为了探明鳙鳃凝集素在各种条件下的稳定性及其细胞凝集活性。[方法]测定经各种条件处理过的鳙鳃凝集素样品的血凝活性,评价其稳定性;通过镜检测定鳙鳃凝集素对微藻细胞及各种微生物细胞的凝集作用。[结果]琥珀酰化修饰、胰蛋白酶水解、SDS及β-巯基乙醇处理均使鳙鳃凝集素活性大大降低;在设定的处理浓度下,二甲基亚砜、NaC l及三氟乙酸对其活性没有影响;鳙鳃凝集素能专一地凝集雨生红球藻及哈维氏弧菌和鳗弧菌。[结论]鳙鳃凝集素稳定性受各种因素影响,能够选择性地凝集雨生红球藻及2株鱼类病原弧菌。 相似文献