抗猪传染性胃肠炎病毒单克隆抗体杂交瘤细胞株的建立     

黄绍棠  马思奇  王明  于文涛  魏凤祥 《中国预防兽医学报》1992,(1)

用猪传染性胃肠炎(TGEV)华毒株弱毒H-155代感染iBRS_2传代细胞,通过冻融、PEG3000沉淀、蔗糖密度梯度离心提纯制备的TGEV抗原,免疫BALB/c小鼠,取血清抗体阳性的免疫鼠的脾细胞,在50％PEG4000作用下,与SP2/0小鼠骨髓瘤细胞进行融合,产生杂交瘤。用ELISA间接法对杂交瘤细胞生长孔上清液进行检测,筛选阳性杂交瘤细胞株。通过有限稀释法进行3次克隆,获得了2株分泌抗TGEV的单克隆抗体杂交瘤细胞株。并对其所分泌的单克隆抗体免疫球蛋白亚类、特异性、中和反应性等特性作了初步鉴定。  相似文献   

牛血清中维生素A的简易测定法     

黄绍棠 《上海畜牧兽医通讯》1993,(6)

维生素A分类为三种相关的化合物——维生素A醇(视黄醇)、维生素A醛、维生素A酸。在血清中,绝大部分维生素A以视黄醇的形式存在。作者研制了一种仅用分光光度计就能测定血清中视黄醇浓度的价廉简易的方法。主要步骤是,牛血清经已烷抽取,过薄层层析,然后用分光光度计分别在325nm和453nm处测定吸光率(A325和A453),最后根据下列方程式计算:视  相似文献   

一种与传染性胃肠炎病毒相关的新病毒：—猪呼...     

黄绍棠 《中国兽医杂志》1992,18(1):48-49

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The modern university: concerns for the future     

Gould SB 《Science (New York, N.Y.)》1967,155(3769):1511-1514

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Effective use of simulations for the teaching and acquisition of veterinary professional and clinical skills     

Scalese RJ  Issenberg SB 《Journal of veterinary medical education》2005,32(4):461-467

Simulation technology will feature prominently in this exciting, yet challenging, time for veterinary medicine. The profession is evolving to keep pace with rapid changes in clinical practice, scientific discovery, and educational strategy, while ensuring that it follows the public mandate to produce competent veterinarians. Among the challenges to meeting this educational goal are limitations-due to important issues such as animal welfare-on the availability of real patients for training. Drawing chiefly on the experience in human medicine, this article explores the use of simulations in veterinary medical education to provide safe and ethical alternative opportunities for learners to practice essential clinical and professional skills.  相似文献   

The effects of automated plasmapheresis on clinical, haematological, biochemical and coagulation variables in horses     

Feige K  Ehrat FB  Kästner SB  Wampfler B 《Veterinary journal (London, England : 1997)》2005,169(1):102-107

The goal of this study was to determine the effects of plasmapheresis on the behaviour, general condition, haematological, biochemical and coagulation variables of donor horses for 32 days following the procedure. Twenty millilitres of plasma/kg body weight were collected via plasmapheresis in six clinically healthy horses. The general behaviour and condition of the horses was not affected by the procedure. During plasmapheresis, there was a mild increase in the haematocrit, haemoglobin concentration and total erythrocyte and leucocyte counts (P < 0.01). The mean concentrations of total protein and albumin decreased significantly (P < 0.01) and total protein did not normalise for about three weeks. Several other biochemical variables also decreased significantly during plasmapheresis, but mostly remained within reference ranges. After plasmapheresis, the mean value of the activated partial thromboplastin time and the thrombin time were mildly but significantly increased (P < 0.01), and the mean activities of factor V, factor VIII and antithrombin decreased significantly (P < 0.01), although all coagulation values remained within reference ranges. Our results indicate that, in horses, the collection of 20 mL of plasma/kg body weight via plasmapheresis results in mild changes in several haematological, biochemical and coagulation variables, although these were of no clinical relevance for the donors.  相似文献   

Effects of rice bran oil on plasma lipid concentrations, lipoprotein composition, and glucose dynamics in mares   总被引：1，自引：0，他引：1  

Frank N  Andrews FM  Elliott SB  Lew J  Boston RC 《Journal of animal science》2005,83(11):2509-2518

Plasma lipid concentrations, lipoprotein composition, and glucose dynamics were measured and compared between mares fed diets containing added water, corn oil (CO), refined rice bran oil (RR), or crude rice bran oil (CR) to test the hypothesis that rice bran oil lowers plasma lipid concentrations, alters lipoprotein composition, and improves insulin sensitivity in mares. Eight healthy adult mares received a basal diet fed at 1.5 times the DE requirement for maintenance and each of the four treatments according to a repeated 4 x 4 Latin square design consisting of four 5-wk feeding periods. Blood samples were collected for lipid analysis after mares were deprived of feed overnight at 0 and 5 wk. Glucose dynamics were assessed at 0 and 4 wk in fed mares by combined intravenous glucose-insulin tolerance tests. Plasma glucose and insulin concentrations were measured, and estimated values of insulin sensitivity (SI), glucose effectiveness, and net insulin response were obtained using the minimal model. Mean BW increased (P = 0.014) by 29 kg (range = 10 to 50 kg) over 5 wk. Mean plasma concentrations of NEFA, triglyceride (TG), and very low-density lipoprotein (VLDL) decreased (P < 0.001) by 55, 30, and 39%, respectively, and plasma high-density lipoprotein and total cholesterol (TC) concentrations increased (P < 0.001) by 15 and 12%, respectively, over 5 wk. Changes in plasma NEFA (r = 0.58; P < 0.001) and TC (r = 0.44; P = 0.013) concentrations were positively correlated with weight gain over 5 wk. Lipid components of VLDL decreased (P < 0.001) in abundance over 5 wk, whereas the relative protein content of VLDL increased by 39% (P < 0.001). Addition of oil to the basal diet instead of water lowered plasma NEFA and TG concentrations further (P = 0.002 and 0.020, respectively) and increased plasma TC concentrations by a greater magnitude (P = 0.072). However, only plasma TG concentrations and VLDL free cholesterol content were affected (P = 0.024 and 0.009, respectively) by the type of oil added to the diet. Mean plasma TG concentration decreased by 14.2 mg/dL over 5 wk in the CR group, which was a larger (P < 0.05) decrease than the one (-5.3 mg/dL) detected in mares that received water. Consumption of experimental diets lowered S(I), but glucose dynamics were not affected by oil supplementation. Addition of oil to the diet altered blood lipid concentrations, and supplementation with CR instead of water specifically affected plasma TG concentrations and VLDL free cholesterol content.  相似文献   

Ribotyping of Indian Isolates of <Emphasis Type="Italic">Pasteurella multocida</Emphasis> Based on 16S and 23S rRNA Genes     

Saxena MK  Kumar AA  Chaudhari P  Shivachandra SB  Singh VP  Sharma B 《Veterinary research communications》2005,29(6):527-535

The applicability of ribotyping based on 16S and 23S rRNA was evaluated for molecular epidemiological studies. Forty-eight isolates of Pasteurella multocida isolated from different hosts and geographical locations and one reference isolate were ribotyped. Only four ribotypes were found. All the isolates including reference isolate from wild carnivores had the same ribotype, though they had different serotypes. The isolate from a tiger had one band in addition to the bands present in the major ribotype. The isolates from lions represented two ribotypes; of these ribotypes, one (r2) had an additional band of 3.6 kbp, which was absent in all other ribotypes. The second ribotype (r4) from a lion had one band missing (6 kbp) that was present in the other ribotypes. These isolates were further typed using ERIC-PCR and REP-PCR. With ERIC-PCR and REP-PCR, higher D values of 0.83 and 0.89 were obtained. The current study revealed that ribotyping is not a very efficient typing tool for use in molecular epidemiology for differentiation of isolates.  相似文献   

The use of sarmazenil in the treatment of a moxidectin intoxication in a foal     

Müller JM  Feige K  Kästner SB  Naegeli H 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2005,19(3):348-349

A13-day-old Arabian Thoroughbred filly weighing 40 kg (88 1b) was presented to the University of Zurich Equine Clinic with a history of depression after deworming with moxidectin at a dose of 2 mg/kg (recommended dose 0.4 mg/kg body weight)^a the day before admission. The foal was found recumbent 12 hours after drug administration and was in an unconscious state 6 hours later  相似文献   

Spinal cord granuloma due to Coccidioides immitis in a cat     

Foureman P  Longshore R  Plummer SB 《Journal of veterinary internal medicine / American College of Veterinary Internal Medicine》2005,19(3):373-376

A6-year-old 5.5-kg female spayed domestic short-haired cat from Tucson, AZ, presented with an ˜5-day history of progressive pelvic limb weakness. The owners had returned from a weekend away to find the cat unable to use her left pelvic limb. Approximately 2 months previously, the cat had a cough and was treated for presumptive asthma with 5 mg prednisone PO q24h. The cat had a similar cough 1 year previously and seasonal allergy was suspected. The cough resolved and prednisone treatment was discontinued. Other past pertinent history included a skin problem ˜4 years previously that was described as alopecia, erythema, and pruritus of a pelvic limb. This problem had been diagnosed as an allergy and had since resolved. The cat was housed exclusively indoors and had been adopted as a kitten from a local retail store. Viral titers (FeLV and FIV) were negative, and regular vaccinations and veterinary examinations had been completed  相似文献