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猪传染性胃肠炎是猪的一种急性肠道传染病.临床特征为腹泻、呕吐和脱水.可发生于各种年龄的猪.其病原体为冠状病毒科的猪传染性胃肠炎病毒.本文重点分析了该病的几项发病特点,并详细介绍具体防控措施. 相似文献
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猪传染性胃肠炎的综合防控 总被引：1，自引：0，他引：1
猪传染性胃肠炎（TGE）是由猪传染性胃肠炎病毒引起猪的一种高度接触性消化道传染病,以呕吐、水样腹泻和脱水为特征。近几年来在仔猪及成年猪中都有流行,特别是早春产仔季节流行时会造成大量死亡,严重影响养猪业的发展。本文针对该病流行情况,详细介绍了猪传染性胃肠炎的综合防控措施。 相似文献
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张清 《畜牧兽医科技信息》2023,(6):171-173
猪传染性胃肠炎是由猪传染性胃肠炎病毒感染引起的接触性肠道传染病。患猪会出现呕吐、腹泻及脱水症状,影响养殖业的安全发展。为了更好地防控猪传染性胃肠炎,要重视养殖过程中的各个环节,尤其是养殖区域的卫生和猪种的来源等,根据对实际情况总结出有针对性的防治措施,供参考。 相似文献
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猪传染性胃肠炎临床诊断及防治 总被引：1，自引：0，他引：1
猪传染性胃肠炎是由猪传染性胃肠炎病毒引起的急性高度接触性肠道传染病,临床上以腹泻、呕吐和脱水为特征,各种年龄的猪都可发病,对哺乳仔猪的危害最严重.然而以腹泻为主症的还有猪痢疾、仔猪黄痢、仔猪白痢、仔猪红痢(梭菌性肠炎)、流行性腹泻、轮状病毒感染、仔猪副伤寒等7种疫病,为了更有效地防控猪传染性胃肠炎,做到早诊断、早治疗.论文阐述了猪传染性胃肠炎与猪其他7种腹泻疫病的临床症状的区别及猪传染性胃肠炎的防治要点. 相似文献
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猪传染性胃肠炎是猪的一种急性肠道传染病,为了减轻猪传染病胃肠炎疾病的发生,我们要弄清猪传染性胃肠炎疾病的病原,然后再采取相应的预防和治疗措施,减少或降低猪传染病胃肠炎疾病的发生.本文分析了猪传染性胃肠炎疾病的临床症状、流行病学、病理变化、诊断方法、同时也提出了几点相应的预防和治疗措施,并分别对其进行了探讨研究. 相似文献
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《养殖与饲料．饲料世界》2019,(8)
猪传染性胃肠炎是由传染性胃肠炎病毒引起猪的一种高度接触性消化道传染病。其发病后表现为严重的腹泻和脱水症状,不仅严重影响到猪的生长发育,还能够导致猪的死亡,对养猪场造成极大的经济损失。本文针对猪传染性胃肠炎的病原、传播途径、临床症状、病理变化、诊断方法进行详细的剖析,并对本病的预防和治疗提出了具体的措施,为养猪场对猪传染性胃肠炎的防控提供参考。 相似文献
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L J Kemeny 《American journal of veterinary research》1978,39(4):703-705
A virologic survey was conducted to determine the frequency of transmissible gastroenteritis (TGE) virus infection in farm-raised sows. Pharyngeal swab specimens collected in an abattoir were examined for TGE virus by inoculation onto swine-testes cell culures. The virus was detected in 61 (3%) of a sample of 2,058 Iowa sows after slaughter. All TGE viral isolates, given orally to 2- or 3-day-old pigs, caused acute gastroenteritis and in some cases death. All pigs that recovered from illness had serum antibody to TGE virus. 相似文献
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Cross-protection studies between the feline infectious peritonitis (FIP) and the porcine transmissible gastroenteritis (TGE) viruses were conducted in cats, pigs and pregnant gilts. Cats vaccinated with TGE virus developed neutralizing antibodies against TGE virus and low titer antibody against FIP virus detected by an indirect fluorescent antibody technique but were not protected against a virulent FIP virus challenge. Baby pigs and pregnant gilts vaccinated with FIP virus did not develop detectable antibodies to TGE virus. Nevertheless, it appeared that vaccination of swine with FIP virus conferred some immunity against TGE virus infection. Seventeen-day-old pigs vaccinated with two doses of FIP virus had a 67% survival rate following a virulent TGE virus challenge, and 75% of the 3-day-old pigs suckling either FIP or TGE-virus-vaccinated gilts survived virulent TGE virus infection in contrast to 0% survival of baby pigs suckling unvaccinated gilts. 相似文献
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Intestinal phospholipase B activity in pigs inoculated with transmissible gastroenteritis (TGE) virus was studied. Phospholipase activity was quantified by measuring the hydrolytic release of free fatty acids in homogenized intestinal tissue incubated with lysophosphatidylcholine. An increase in enzyme activity was observed in the cranial and caudal portions of the ileum and jejunum in pigs killed 3, 6, and 8 days after inoculation with TGE virus. Seemingly, phospholipase B may be part of the host immune response against TGE viral infection. 相似文献
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A study was conducted in the USA to determine whether transmissible gastroenteritis (TGE) virus could be transmitted from carcases of slaughtered pigs. Transmissible gastroenteritis virus was transmitted to 6-day-old piglets by dosing with homogenates of muscle and lymph node collected from 500 clinically normal pigs at the time of slaughter. All piglets in 2 separately housed litters showed clinical signs of TGE with 5 piglets dying within 10 d of oral dosing with homogenates. Transmissible gastroenteritis virus was isolated from 2 of these piglets and all piglets developed TGE antibody. Transmissible gastroenteritis virus was not isolated in tissue culture from muscle and lymph node homogenates, but was isolated from 4 (0.8%) of 500 tonsil samples collected from the same pigs. A survey of 250 serum samples provided an estimate of the prevalence of slaughtered pigs with TGE antibody of 34.8% in the sample population. The results indicate that carcases of some pigs from TGE endemic areas contain viable TGE virus, and that there would be a substantial risk of introducing TGE virus into Australia by the importation of uncooked pig meat from these areas. 相似文献
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Enzootic pneumonia in feeder pigs: Association with transmissible gastroenteritis virus infection 
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下载免费PDF全文 Marois P Difranco E Boulay G Assaf R 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(4):328-330
Infection with transmissible gastroenteritis virus (TGEV) was present in some pigs on arrival at a feeder pig farm and was well established three weeks later. TGE infection preceded Mycoplasma hyopneumoniae infection, which was not detected until three weeks after arrival. Severe lesions of enzootic pneumonia were observed at the end of the fattening period. 相似文献
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K W Theil L J Saif E H Bohl A G Agnes E M Kohler 《American journal of veterinary research》1979,40(5):719-721
A 3-day-old suckling pig with diarrhea was necropsied, and immunofluorescent microscopic examination of the small intestinal mucosa, together with immune electron microscopic examination of the large intestinal contents, provided a presumptive diagnosis of a concurrent infection with transmissible gastroenteritis (TGE) virus and porcine rotavirus. Immunofluorescent microscopic, immune electron microscopic, and serologic data obtained from gnotobiotic pigs experimentally inoculated with the large intestinal contents of the suckling pig confirmed this diagnosis. Two gnotobiotic pigs, convalescent from previous TGE viral infections, became infected with porcine rotavirus only. However, another gnotobiotic pig, convalescent from a previous porcine rotaviral infection, became infected with TGE virus only, following inoculation with the large intestinal contents of the suckling pig. 相似文献
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AJ FORMAN 《Australian veterinary journal》1991,68(1):25-27
Sixteen 6-month-old pigs were exposed to transmissible gastroenteritis (TGE) virus by placing them in close contact with piglets infected at 1 week of age. Fourteen of the older pigs were slaughtered between 1 and 5 d after exposure to infection and their carcases dressed in simulated abattoir conditions. Samples of muscle, bone marrow and carcase lymph nodes were stored at -25 degrees C for at least 30 d and then homogenised and fed to groups of 1-week-old and 3-week-old pigs. Four of 12 one-week-old pigs died and TGE virus was isolated from intestinal contents of one of these. All pigs of both age groups developed neutralising antibody to TGE virus over the ensuing 4 w. The results indicate that carcases from pigs infected with TGE virus can represent a source of infection for susceptible pigs given access to them. 相似文献
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Simulation of the economic impact of transmissible gastroenteritis on commercial pig production in Australia 总被引：1，自引：0，他引：1
A simulation model (AUSPIG) was used to predict the effect of an increase in piglet deaths, and a reduction in growth rate and an increase in feed conversion ratio of grower pigs on the profitability of two herds representative of the Australian pig industry caused by the introduction of transmissible gastroenteritis virus (TGE) into those herds. For each herd, mortality rates for piglets under 1 week of age of 50% and 95% were assumed to represent a 'moderate' and a 'severe' outbreak, respectively. A reduction in net revenue of 70% was predicted to occur in the 6 months after a 'moderate' outbreak of TGE (100% for a 'severe' outbreak). This represents a total loss of between $260 and $330 per breeding sow in the 12 months after infection with the TGE virus. The likely financial impact of an outbreak of TGE on an Australian piggery is substantial and should be considered when addressing quarantine issues. 相似文献
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V. J Rejish Kumar Seo Byeong Joo Mun Mi Ran Kim Chul-Joong Lee Insun Kim Hongik Park Yong-Ha 《Tropical animal health and production》2010,42(8):1855-1860
A total of 310 bacterial strains isolated from the porcine gastrointestinal tract were tested for their activity against transmissible
gastroenteritis (TGE) coronavirus and other enteric pathogens. Based on activity, the strains Probio-38 and Probio-37 were
selected as potential probiotics and identified as Lactobacillus plantarum Probio-38 and Lactobacillus salivarius Probio-37 respectively by 16S rRNA gene sequencing. Supernatants of these strains inhibited TGE coronavirus in vitro in ST
cells, without any cytopathic effect even after 72 h of incubation. Both the strains exhibited high survival in synthetic
gastric juice. The strains were resistant to 5% porcine bile and exhibited antimicrobial activity against all the 13 enteric
bacterial pathogens tested. These strains also exhibited resistance to most of the antibiotics analyzed. The inhibition of
transmissible gastroenteritis coronavirus and enteric bacterial pathogens as well as the bile tolerance, high survival in
gastric juice, and the antibiotic resistance indicate that the two isolated bacterial strains are ideal probiotic candidates
for animal application after proper in vivo experiments. 相似文献
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Two- to three-months-old pigs infected with transmissible gastroenteritis (TGE) virus showed no clinical response when housed at 30°C, but comparable infected pigs exposed to temperature changes from 30°C to 4°C following infection showed typical signs of TGE. Development of TGE-specific immune responses, as measured by blastogenic response of tissue lymphocytes, occurred at 3 days post-inoculation (DPI) in pigs held at 30°C, but not until 7 DPI in infected pigs held under the adverse conditions.Immunosuppression with corticosteroids resulted in a fall in circulatory T cells, lowering of non-specific blastogenic response of circulatory lymphocytes, and clinical signs of disease when immunosuppressed pigs were infected with TGE virus and held at 30°C. It is suggested that clinical responses to TGE virus infection may be affected by the influence of ambient temperatures on the immune responses of pigs. 相似文献