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柳要涛 《畜牧兽医科学(电子版)》2021,(5):61-62
葡萄球菌感染是家禽养殖中一种常见的细菌性传染疾病,鸡养殖中的葡萄球菌感染通常是致病性金黄色葡萄球菌感染的一种慢性或急性传染性疾病,通常慢性疾病感染会导致鸡只出现关节炎症或者足部疾病,急性型感染会导致鸡只出现急性败血症病变。葡萄球菌感染疾病所导致的鸡只死亡率较高,尤其在雏鸡和育成阶段,对于成年鸡的死亡率相对较低,但是会对其生产性能和机体健康状况造成严重的损伤,进而影响鸡养殖的经济效益。该文主要对鸡养殖中葡萄球菌感染的临床症状,解剖检查变化及相关的防治措施进行论述。 相似文献
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正提到散养鸡,首先浮现在大家眼前的便是各种可口散养鸡"鸡肴"或鸡汤,但孰不知如此美味的汤肴是从何而来。近年来,由于种禽类疾病致使散养鸡的产量大大降低,严重影响了养殖效率。现对此情况,为大家介绍一些相关有益于养殖散养鸡的饲养方法,具体如下。1 农村散养鸡的病害种类及病因1.1 散养鸡的病害种类1.1.1 禽霍乱禽霍乱又称禽巴氏杆菌病,该病是由多杀性巴氏杆菌引起的所有家禽都会感染的急性败血性疾病。该病的特点为来势急、病情重、 相似文献
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鸡巴氏杆菌病也叫做鸡出血性败血症、禽霍乱,是由于感染多杀性巴氏杆菌而发生的一种接触性传染病。急性型主要是突然出现发病,表现出败血症、下痢症状;慢性型主要是肉髯、鸡冠发生水肿,并伴发关节炎。在气候突变、鸡群饲养管理不当以及机体抵抗力下降时就会诱发该病。大部分国家都可出现发病,且病菌强毒株可导致年龄不同的育成鸡和成年鸡全部感染发病,病死率超过60%,造成巨大的经济损失。现概述该病的防控措施。 相似文献
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《中国动物保健》2021,(8)
肉鸡规模化养殖中传染性疾病的出现是限制肉鸡养殖生产的重大阻碍,细菌性传染性疾病容易导致鸡群的感染,进而影响肉鸡养殖产业的健康发展。肉鸡养殖中大肠杆菌疾病的出现主要是由于治病性大肠埃希氏菌感染导致,引起鸡只局部组织或者全身性感染症状。由于不同的感染类型,肉鸡大肠杆菌感染可以分为急性败血型感染、脑炎型感染、眼炎型感染以及生殖系统型感染等,均会导致肉鸡机体健康状况和生产性能的显著下降。现阶段肉鸡养殖中大肠杆菌感染疾病的防治措施受到广大肉鸡养殖户的关注,良好的疾病防治措施才能有效保障肉鸡养殖产业的科学发展。本文将对肉鸡养殖中大肠杆菌疾病的流行特点、常见的疾病症状以及相关的防治措施进行介绍,旨在为肉鸡的健康养殖提供帮助。 相似文献
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正目前,鸡是我国家禽养殖业中的主要种类之一,可为养殖户带来比较可观的经济收益。但在养殖过程中,细菌病却非常常见,如鸡霍乱、鸡白痢、鸡大肠杆菌病等。若这些细菌病没有及时进行治疗,很容易引发其他疾病。因此,本文主要对鸡常见细菌病的诊断与治疗进行分析与介绍。1 禽霍乱1.1 发病原因禽霍乱又叫做巴氏杆菌病,是由多杀性巴氏杆菌引起的一种传染病,主要通过被污染的饲料或水感染。多出现在环境污染比较严重和设备及条件比较简陋的小型鸡场。多发 相似文献
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鸡巴氏杆菌感染又名"禽霍乱",是养禽生产中较为常见的一种条件性传染病,禽类均易感,多发生于季节交替和气温骤变时节,患病后极易导致急性暴发性死亡,如得不到及时有效的处置,极易导致群体大规模死亡,造成不必要的经济损失。2011年9月底,我省某绿壳蛋鸡养殖基地饲养的绿壳蛋鸡先后暴发了以急性死亡、传播速度快为特征的疑似"禽霍乱"疾病,经相关流行病学调查、临床和病理变化以及 相似文献
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《中国动物保健》2021,(8)
牛病毒性黏膜疾病是牛养殖中一种常见的传染性疾病,主要会导致牛只出现腹泻以及急性和慢性的黏膜性炎症病变,进而导致牛只出现持续性疾病感染以及免疫耐受和免疫抑制的情况,妊娠母牛在感染疾病后将出现流产或者分娩出畸形胎儿的情况,严重影响了牛养殖的生产性能和机体健康状况,同时制约了牛养殖产业的健康发展。牛病毒性黏膜疾病主要是由于牛病毒性腹泻病毒感染所导致,这种致病病毒不仅在牛养殖中出现,对于羊、鹿、耗牛、猪等动物养殖中也会导致患病的情况,给畜禽养殖生产带来负面影响。本文将对现阶段牛病毒性黏膜疾病的研究进展以及疾病的防治措施进行介绍,旨在为牛养殖中病毒性黏膜疾病的防治以及牛养殖产业的科学发展提供帮助。 相似文献
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禽霍乱蜂胶灭活疫苗对鸡鸭鹅的现场免疫应用效果 总被引：1，自引：1，他引：0
对鸡、鸭、鹅健康群和禽霍乱发病群现场应用禽霍乱蜂胶灭活疫苗，结果表明，该疫苗安全可靠，不影响开产日龄和产蛋；保护率高，４个月内保护率为９８．７％～１００％，６个月内保护率为８５％～９５％，６个月以上保护率为６０％～８０％；对禽霍乱暴发群配合内服药物，可于５～７ｄ内迅速控制和扑灭疫情，且不复发 相似文献
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As part of a case-control study designed to identify fowl cholera risk factors, 2087 blood samples were collected from 71 California meat-turkey flocks. Samples were tested for antibodies to three mycoplasmas and four viruses pathogenic for turkeys. Flocks that had antibodies to Newcastle disease virus and/or Mycoplasma meleagridis had an increased risk of having an outbreak of fowl cholera. This information should prove useful for fowl cholera control programs in meat turkeys. 相似文献
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Shivachandra SB Kumar AA Gautam R Joseph S Saxena MK Chaudhuri P Srivastava SK 《Research in veterinary science》2006,81(1):8-18
Avian strains of Pasteurella multocida were typed by employing restriction endonuclease analysis (REA) and single enzyme-amplified fragment length polymorphism (AFLP) to evaluate their applicability for epidemiological studies of fowl cholera outbreaks. A total of 72 strains isolated from different avian species (chicken, duck, turkey, quail and goose) belonging to various geographical regions of India were characterized. REA using two different enzymes HhaI and HpaII produced 9 and 18 clusters respectively, whereas Single enzyme-AFLP recognized 32 patterns out of 72 strains typed. The study indicated that REA using HpaII is a simple and resource efficient method, however, further typing with more stringent and rapid method like Single enzyme-AFLP, could drastically enhance investigation in epidemiological studies of fowl cholera outbreaks. 相似文献
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Six cases of fowl cholera in growing turkeys and 3 in adult breeder chickens of the broiler type as well as one case each of a Pasteurella (P.) multocida-associated disease in ducklings and goslings were described in consideration of own laboratory findings and available informations of the case history. Furthermore a report is given on a treatment strategy successfully used in turkeys with highly acute fowl cholera. All the P. multocida strains isolated culturally could be assigned to the subspecies multocida. In one case Bordetella avium, Salmonella (S.) arizonae and S. hadar were additionally cultured form part of turkeys submitted. P. multocida and Moraxella (Pasteurella) anatipestifer could be determined as the causative agents of the disease of ducklings and goslings. P. multocida strains from turkeys were identified serologically as serovars A:3.4 (3x), F:3.4 (2x) and A:3 (1x); those from the breeder chickens as A:3 (3x); and one each from ducklings and goslings as F:3.4 and -:3. (uncapsulated). No death occurred in turkeys with clinical signs of a highly acute fowl cholera if the treatment of the affected birds was started with an intravenous injection of sulfadimethoxine and continued with a combination of sulfachlorpyridazine (SCP) and trimethoprim (TMP) given in the drinking water for 5 days. However relapse occurred 2-3 days after withdrawal of the drug, although the therapy was clinically highly effective. The recurrence of the disease could be prevented reliably if the turkeys were vaccinated with an effective oil-based bacterin and subsequently treated with the SCP-TMP combination given in drinking water over a 12 day period. 相似文献
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P Zhang N Fegan I Fraser P Duffy R E Bowles A Gordon P J Ketterer W Shinwari P J Blackall 《Journal of veterinary diagnostic investigation》2004,16(5):458-460
Two outbreaks of fowl cholera on a multiage free-range egg farm were investigated. The outbreaks occurred in 1994 and 2002. A total of 22 strains of Pasteurella multocida were available for study, 11 from the 1994 outbreak and 11 from the 2002 outbreak. Lesions typical of acute fowl cholera were seen in the 1994 outbreak, whereas both acute and chronic fowl cholera occurred in the 2002 outbreak. The isolates were examined in an extended phenotypic typing methodology, by a P. multocida-specific polymerase chain reaction (PCR), by the Heddleston somatic serotyping scheme, and by restriction endonuclease analysis (REA) typing using the enzyme HpaII. All 22 strains had the same phenotypic properties, all were confirmed as P. multocida by PCR, all were Heddleston serovar 4, and all had the same REA pattern. The results indicate that these 2 outbreaks were caused by the same clone of P. multocida--despite the 8-year time period between the outbreaks. 相似文献
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Virulence and toxigenicity of capsular serogroup D Pasteurella multocida strains isolated from avian hosts 总被引：1，自引：0，他引：1
Five capsular serogroup D strains of Pasteurella multocida isolated from avian hosts were examined for virulence and toxigenicity. Virulence was based on development of lethal infections or lesions following intramuscular exposure of turkey poults. The four strains isolated from turkeys varied from slightly to moderately virulent; the strain isolated from a chicken was avirulent. Poults exposed by intra-airsac inoculation with relatively few organisms of the more virulent of the strains had a high mortality rate; however, intranasal exposure of poults with this strain did not cause clinical disease or establish infections. All strains from turkeys were toxigenic, producing heat-labile toxins that killed poults when administered intraperitoneally and caused focal dermal lesions when administered intradermally. Using these criteria, the strain from a chicken was not toxigenic. The demonstration of virulence, particularly the high mortality in poults exposed via air sacs, indicates avian capsular serogroup D strains are a potential cause of fowl cholera. 相似文献
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Natural disease outbreaks of erysipelas and fowl cholera occurred in several lines of turkeys maintained for genetic studies. There were line differences in mortality during both outbreaks, suggesting that there is genetic variation in resistance to these diseases. A line developed by selection for increased egg production had a higher mortality rate from fowl cholera than did the randombred control line from which it was developed. Both the egg line and its control line had a lower mortality rate in the erysipelas outbreak than did a line selected for increased growth rate. Both diseases induced high mortality in a line selected for increased growth. 相似文献