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1.
Cerebral cuterebrosis in a dog 总被引：1，自引：0，他引：1
E A Sartin C M Hendrix D L Dillehay B Nicholls 《Journal of the American Veterinary Medical Association》1986,189(10):1338-1339
A second instar Cuterebra larva was found in the thickened meninges of a 6-week-old female Doberman Pinscher at necropsy. The dog appeared blind and had chewing fits before death. Cerebral cuterebrosis in the dog is uncommon. This report briefly discusses the pathogenesis of the condition. 相似文献
2.
N Tsuji T Itabisashi Y Nakamura N Taira M Kubo S Ura A Genno 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》1992,54(6):1137-1143
For obtaining the preliminary data on the pathogenesis of sudden death in calves naturally heavily infected with Strongyloides papillosus, we monitored 8 Holstein calves experimentally infected with the larvae on electrocardiographic and pneumographic changes. Six calves died suddenly on days 11 to 17 after infection. Sinus tachycardia had been recorded continuously since 1 to 6 days before death. Heart rates increased gradually until death. Since 1 or 2 days before death, various patterns of tachyarrhythmia and bradyarrhythmia had been observed among patterns of sinus tachycardia. Arrhythmias included serious ventricular premature beat, paroxysmal ventricular tachycardia, complete atrioventricular block and so on. The terminal pattern observed suddenly in all of the cases was ventricular arrhythmias consisting of serial ventricular tachycardia, flutter and fibrillation, which were followed by respiratory arrest. Abnormal pneumograms were not obtained before the terminal ventricular fibrillation. Two of 8 calves recovered from the infection, only one of which showed sinus arrest and the second degree of atrioventricular block transiently. We concluded that calves heavily infected with the larvae died due to sudden cardiac arrest. 相似文献
3.
A 4% mortality in 5-to-11-day-old turkey poults was attributed to 1.85% sodium chloride in the feed. The syndrome included peracute respiratory distress, ascites, and sudden death that resembled peracute heart failure. Clinical signs were observed only in the final phase of the toxicity, but progressive histologic lesions were found. Live, apparently unaffected poults showed increases in intracellular glycogen and cytoplasmic granularity, loss of striation, and early mild intercellular myocardial edema; similar but more severe histologic lesions were seen in live, ascites-affected poults. The ascites-affected poults had hydropericardium and hydrothorax which seemed to develop just minutes before death. Ultrastructurally, focal areas of myocardial cells exhibited myofibrillar disarray, lysis of myofilaments, widened Z-bands, and dilation of sarcoplasmic reticulum. 相似文献
4.
AIM: An intensive 2-year field study of 65 hihi (or stitchbirds) on Mokoia Island provided an opportunity to investigate the causes of mortality of this endangered species in a free-living environment. METHODS: The birds were observed daily during the breeding season (October to March) and every 4 weeks during the remainder of the year. Any abnormalities in behaviour, voice and body weight were recorded and all sick or dead birds which could be recovered were taken to the laboratory for necropsy. RESULTS: Thirty-one birds died during the period of this study. Aspergillosis was found to be the cause of death in six of nine adult birds examined post mortem. Some of the affected birds experienced subtle voice changes before becoming ill and all birds had granulomatous lesions in airsacs or lungs at necropsy. A further eight birds for which carcasses could not be found or which were autolysed showed similar clinical signs before death or disappearance. CONCLUSION: Because Aspergillus is an opportunist pathogen it seems likely that affected birds were immunosuppressed. This may have occurred during the breeding season which in this species is highly stressful. The presence of fungal material in bronchial exudate and the occurrence of the disease in mates, raises the possibility that aspergillosis in hihi may be contagious. 相似文献
5.
A turkey breeder flock of 5600 31-week-old hens experienced an abrupt increase in daily mortality for a 2-day period. This higher mortality rate corresponded with the handling and moving of the hens 1 to 2 days before. No clinical illness was seen in the hens before carcasses were discovered. The four hens that were necropsied had small spleens, congested lungs, and enlarged livers. The most consistent histologic lesions were pulmonary hemorrhage and edema, and congestion of veins and capillaries in several visceral organs. One hen had subserosal hemorrhage of the oviduct and perirenal hemorrhage. The increased mortality pattern, the lack of clinical signs, and the histopathologic changes are consistent with a diagnosis of sudden death syndrome. The presence of concurrent inflammatory lesions in the lungs predisposed the hens to sudden death following the stress of handling and moving. 相似文献
6.
W.F. Robinson C.R.R. Huxtable D.A. Pass J. McC. Howell 《Australian veterinary journal》1979,55(8):351-355
Surviving puppies from three separate litters in which deaths had occurred from suspected viral myocarditis were examined clinically and electrocardiographically. Of 11 puppies examined, 5 subsequently died or were euthanised within 11 days of initial examination. ECG changes present in these puppies for 1 to 11 days prior to death were small R waves (less than 0.4 mV in lead II), S-T segment elevation, QRS notching and paroxysmal ventricular tachycardia (PVT). No clinical signs referable to the ECG changes were present before the terminal episodes of apparent sudden death or death following a brief period of dyspnoea. Multifocial subacute myocarditis was present on post-mortem examination. A sixth puppy with small R waves remained clinically normal for a further 4 weeks. It then developed severe dyspnoea which persisted for 24 hours before euthanasia. Extensive fibrosis of the left ventricle was present on post-mortem examination. 相似文献
7.
C R Sweeney D M Gillette 《Journal of the American Veterinary Medical Association》1989,195(3):374-377
Thirty-two horses and 3 ponies had neoplasia involving the thoracic cavity. Lymphosarcoma of the thorax was found in 19 (54.2%) of the equids. The other 16 equids had metastatic adenocarcinoma (7 horses; 20%), metastatic squamous cell carcinoma (5 equids; 14.3%), metastatic hemangiosarcoma (3 equids; 8.6%) or undifferentiated sarcoma (1 horse; 2.9%). Thoracic neoplasia was diagnosed before death in 15 equids (42.9%). 相似文献
8.
Neurologic, endocrinologic, and pathologic findings associated with large pituitary tumors in dogs: eight cases (1976-1984) 总被引：1，自引：0，他引：1
D Sarfaty J M Carrillo M E Peterson 《Journal of the American Veterinary Medical Association》1988,193(7):854-856
Invasive tumors of the pituitary gland were diagnosed in 8 dogs. Seven of the dogs had been treated for pituitary-dependent hyperadrenocorticism before the onset of neurologic signs. All 8 dogs had behavior abnormalities and similar neurologic signs: 6 dogs had rotary nystagmus and 7 dogs had symmetric tetraparesis. Once neurologic signs developed, the clinical course in all 8 dogs had a mean duration of 4.7 +/- 2.0 months before death or euthanasia; 5 dogs had a clinical course of less than or equal to 2 months. Necropsy was performed in 7 dogs. The histologic diagnosis was malignant pituitary adenocarcinoma in 2 dogs and pituitary adenoma in 5 dogs. 相似文献
9.
R. A. McKenzie B. J. Blaney M. D. Connole L. A. Fitzpatrick† 《Australian veterinary journal》1981,57(6):284-286
SUMMARY Acute aflatoxicosis was believed to be the cause of death of 12 of 90 drought-stricken Hereford calves fed peanut hay on the southern Darling Downs in Queensland. Jaundice, photosensitisation, diarrhoea, anorexia and depression were seen before death. Serum levels of enzymes of hepatic origin and bilirubin were elevated. After death haemorrhage, hepatocyte damage, bile ductule proliferation were found. Total aflatoxin levels up to 2230 μg/kg were detected in the peanut hay with most toxin concentrated in nut-in-shell. 相似文献
10.
Cardiac fibrosarcoma in a dog 总被引：1，自引：0，他引：1
D S Vicini P J Didier G K Ogilvie 《Journal of the American Veterinary Medical Association》1986,189(11):1486-1488
A cardiac fibrosarcoma involving the right ventricular free wall, the interatrial septum, and proximal portion of the interventricular septum, with a 2-cm diameter protrusion into the right atrial lumen, was found at necropsy of a 2-year-old Miniature Schnauzer. Severe distortion of the tricuspid valve and narrowing of the aortic and pulmonic outflow tracts had caused the dog to develop right-sided cardiac failure and to have syncopal episodes. A tentative antemortem diagnosis of congenital pulmonic stenosis had been made on the basis of results of physical examination and diagnostic work-up. Evaluation of the case exemplifies the difficulty encountered in diagnosing cardiac tumors before the patient's death. 相似文献
11.
Isolation of group eugonic fermenter-4 bacteria from a cat with multifocal suppurative pneumonia 总被引：1，自引：0，他引：1
R Drolet K B Kenefick M R Hakomaki G E Ward 《Journal of the American Veterinary Medical Association》1986,189(3):311-312
A pure growth of Group Eugonic Fermenter-4 bacteria (gram-negative) was isolated from the lungs of an 11-year-old male domestic cat that had been ill for 2 days before death. Clinical signs included anorexia, severe dyspnea, and salivation. The lungs contained several firm, slightly raised, yellowish-gray, spherical nodules of various sizes. Purulent exudate was found in the pericardial sac and left pleural cavity. Histologic evaluation revealed multifocal suppurative pneumonia. 相似文献
12.
The objectives of this study were to assess the risk associated with proportion Brahman inheritance, cow age, dystocia, and birth date weather conditions on calf vigor at birth (n = 3,253) and preweaning mortality (n = 3,631), and to estimate heritabilities for these traits. Calves that had poor vigor at birth and calves that died before weaning were coded 1, and those that had adequate birth vigor or survived to weaning were coded 0. Traits were analyzed using GLM. Year (1951 to 2002), cow age, calfgender, minimum temperature on date of birth (two levels: < 5.6 degrees C; or > 5.6 degrees C), and occurrence of dystocia were main effects in models. The proportion of Brahman inheritance in calves was modeled as a covariate. Males had greater odds of poor birth vigor (odds ratio = 1.44, 95% confidence interval = 1.14 to 1.82). The odds of death before weaning for steers relative to heifers approached significance (P = 0.07; odds ratio 1.41, 95% confidence interval 0.97 to 2.04). Calves born to young (3-yr-old) or very old (13 yr or older) cows had greater (P < 0.05) odds of poor vigor and death before weaning than calves of 5-yr-old cows. Calves with difficult births had 2.59 times greater odds of poor birth vigor (95% confidence interval 1.40 to 4.79) and 12.9 times greater odds of death before weaning (95% confidence interval 8.14 to 20.39) than calves born with no dystocia. Calves born on days with minimum temperatures of 5.6 degrees C or less had greater odds of poor vigor (odds ratio 1.97, 95% confidence interval 1.50 to 2.59) and of death before weaning (odds ratio 1.64, 95% confidence interval 1.27 to 2.13) than did calves born on days with higher minimums. The occurrence of rainfall on date of birth did not influence calf vigor at birth or preweaning mortality (P > 0.85). Purebred Brahman calves had 24.7 times greater odds (95% confidence interval 8.23 to 73.97) of poor vigor than 2/3 Brahman calves. The regression coefficient estimate for fraction of Brahman inheritance approached significance (P = 0.07) for preweaning mortality. Estimates of direct and maternal heritability were 0.09 +/- 0.05 and 0.10 +/- 0.04 for birth vigor, and 0.06 +/- 0.05 and 0.09 +/- 0.04, respectively, for preweaning mortality. Some exploitable genetic variation exists for these traits, but management of other factors may yield more immediate improvement than selection. 相似文献
13.
Monoclonal Antibody C219 Immunohistochemistry Against P-Glycoprotein: Sequential Analysis and Predictive Ability in Dogs With Lymphoma 总被引：1，自引：1，他引：0
Philip J. Bergman DVM MPH MD Gregory K. Ogilvie Barbara E. Powers 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》1996,10(6):354-359
In the present study, the prevalence of positive staining for P-glycoprotein using C219 monoclonal antibody was assessed in 58 tissue samples of high-grade lymphoma from dogs before initiation of chemotherapy. Samples were also evaluated at relapse in 22 dogs, at necropsy in 34 dogs, and at all 3 times in 15 dogs. The frequency of positive staining was significantly higher than that found prior to the initiation of chemotherapy at the following times: relapse ( P = .0001), necropsy ( P < .0001), and both relapse and necropsy ( P < .001, sequential data). The frequency of positive staining prior to the initiation of chemotherapy was significantly inversely related to remission ( P < .001) and survival times ( P = .0012). Similarly, when populations below and above the median initial C219 score were compared with respect to remission and survival times, the population with scores greater than the median had significantly lower remission ( P < .001) and survival ( P = .008) times, respectively. The frequency of positive staining determined at relapse was significantly inversely related to the time from relapse to death ( P = .0102). Similarly, when populations below and above the median relapse C219 score were compared with respect to the time from relapse to death, the population with C219 scores greater than the median had a significantly lower time from relapse to death ( P = .006). It appears that this immunohistochemical methodology may be used as a predictor of remission time, survival time, and the time from relapse to death. Additional studies are required to confirm the usefulness of C219 as a true marker of P-glycoprotein and to evaluate P-glycoprotein as a useful prognostic factor in dogs with lymphoma. 相似文献
14.
An analysis was made of the causes of death in horses and ponies over one year of age which died suddenly (Group 1) or were found dead but were considered normal when last seen (Group 2). There were 49 animals in Group 1. Thoroughbreds were overrepresented, but there were no ponies in this group. No cause of death was found in 30.6 per cent of cases and 16.3 per cent died from each of the following causes: haemorrhage in the respiratory system, central nervous system, and adverse drug reactions. Cardiovascular lesions were the cause of death in 14.4 per cent and the remaining 3.1 per cent had lesions of the gastrointestinal system. Racehorses mostly died suddenly from severe haemorrhage in various sites, particularly the thorax. In Group 2 there were 151 animals, and in 33.1 per cent no cause of death was determined. Gastrointestinal lesions were considered the cause of death in 39.2 per cent of cases and respiratory lesions killed 8.6 per cent. Lesions of both the central nervous system and cardiovascular system were considered the cause in 4.6 per cent of cases. The remaining 9.9 per cent of animals had miscellaneous lesions. Toxicological studies were performed in 46 of the total 200 cases, and only two had positive results; lead in one and nicotine in the other. 相似文献
15.
G K Saunders D J Blodgett T A Hutchins R M Prater J L Robertson P A Friday W K Scarratt 《Journal of veterinary diagnostic investigation》2000,12(3):269-271
Thirteen lactating dairy cows from a herd of 650 died over a 6-week period. Most animals were down in milk production at 1 milking and were found dead at the next milking. Two cows had elevated heart rate and enlarged mandibular lymph nodes. Two others had azotemia, elevated heart rate, hyperglycemia, and weight loss. Necropsy of 10 cows revealed hemorrhages on the intestinal serosa and epicardium, lymphadenopathy, interstitial nephritis, small intestinal hemorrhage, and interstitial pneumonia. Histopathology showed lymphocytic to lymphogranulomatous inflammation in the heart, spleen, kidney, lymph nodes, liver, lung, pancreas, and adrenal gland. Phlebitis was present in 2 livers. The lesions resembled those of hairy vetch toxicosis, but no vetch was being fed. Similar lesions have been reported with the feeding of citrus pulp. Citrus pulp was being fed to the lactating cows and had been added to the diet 6 weeks before the first death. The syndrome resolved with elimination of citrus pulp from the diet. 相似文献
16.
J Bartko 《Veterinární medicína》1979,24(5):285-294
The author describes the serological demonstration of toxoplasma antibodies in sheep of ten flocks kept in the lowland region of western Slovakia. The results of serological examination by the complement-fixation reaction (CFR) were positive in different degrees in nine flocks. In the remaining flock the blood of the sheep was not found to contain such antibodies. At the locality L. the author selected a small group of serologically positive sheep from the group of animals to be slaughtered and he studied the CFR values of antibodies in the course of nine months. Toxoplasma strain denoted as H-1 was isolated from the brain of a ram of this group which had a 1 : 256 antibody titre in the blood. This strain was found to be highly virulent for white mice. Toxoplasma antibodies were also identified in the blood of exposed workers, in the blood of dogs, mice and sewer rats. The patho-anatomic picture and isolation of toxoplasma strains from the brain of dead sheep or their foetuses which had the antibodies in the blood before death -- all this demonstrated the occurrence of congenital infection. 相似文献
17.
Nusinovici S Seegers H Joly A Beaudeau F Fourichon C 《Preventive veterinary medicine》2011,101(1-2):42-50
Inactivated virus vaccines have been widely used to control bluetongue after introduction of serotype 8 of the bluetongue virus (BTV) in northern Europe in 2006. To evaluate vaccination, quantitative knowledge of its possible side effects is needed. One current adverse reaction with inactivated vaccines is a rise in body temperature, which could reduce cow reproductive performance. The objective of this study was to quantify a possible side effect of vaccination on fertility before the implantation of the embryo of dairy cows under field conditions. The study was performed on herds that were not exposed to BTV. Fertility was assessed by return-to-service following artificial insemination (AI). Biological assumptions for a possible side effect of vaccination were conception failure and embryonic death. Associations between return-to-service rates and vaccine injections were assessed using mixed-logistic regression models and survival analysis. Two models were considered: a 3-week-return-to-service model comparing cows vaccinated between 3 days before and 16 days after AI and unvaccinated cows (assuming an effect on conception failure or early embryonic death), and a 90-day-return-to-service model comparing cows vaccinated between 3 days before and 42 days after AI and unvaccinated cows (assuming an effect on conception failure, early or late embryonic death). Only cows receiving a second vaccine injection between 2 and 7 days after AI had a significantly higher risk of 3-week-return-to-service (RR=1.19 [1.07-1.33]). This corresponds to an increase of return-to-service by 4 percentage points. A side effect of vaccination could be due to early embryonic death. The slight side effect on fertility associated with vaccination was low compared to effects of BTV-8 exposure on fertility. 相似文献
18.
Beth A Valentine Wilson K Rumbeiha Terry S Hensley Richard R Halse 《Journal of veterinary diagnostic investigation》2007,19(2):212-215
Over a 12-day period, 13 animals in a herd of 110 beef cattle developed ataxia with profound muscle fasciculations progressing to recumbency. Twelve animals (5 adults and 7 calves from 8-10 months of age) died, and 1 cow was euthanized. Hemorrhagic diarrhea occurred in some, but not all, animals. The onset of clinical signs was at least 12 hours after the cattle had gained access to contents of old buildings used for storage, and the majority of deaths occurred within 24 to 48 hours after the onset of clinical signs. Approximately 9 kg of unidentified pellets were found strewn in the barn area where the cattle had been. Autolysis considered more severe than expected for the postmortem interval, suggestive of high body temperature before death, and congestion of body tissues were the only significant findings detected in the cow that was euthanized and submitted for necropsy examination. The clinical history and lack of postmortem lesions were most consistent with toxicity. A toxic level of arsenic (6.18 ppm) was detected in the kidney, and metaldehyde was detected in the liver. The pellets were analyzed and found to contain both arsenic and metaldehyde, consistent with a discontinued molluscicidal product. 相似文献
19.
20.
Endrin toxicosis was believed responsible for the sudden death of a cat. Stomach contents contained bird remains, and chemical analysis revealed 233 micrograms of endrin/g. The cat's owner had been using an avicide on the premises just before the cat's death. Endrin is an effective pesticide for control of insects, rodents, and birds. It poses a problem with secondary poisoning in other animals. 相似文献