细化搜索
结果 301-310 的 510
Токсикологическая оценка препаративных форм сабельника болотного
2009
Titovich, L.V. | Tolkach, N.G., Vitebsk State Academy of Veterinary Medicine (Belarus) | Buzuk, G.N., Vitebsk State Medical Univ. (Belarus)
Investigation of acute sub-acute toxicity of preparative forms (herbal infusion, tincture liquid extract and pulvis) of marsh cinquefoil (Comarum palustre) by the example of laboratory animals was realized in the conditions of the Republic of Belarus. White mice of both sexes with body weight of 18-20 g and white rats with body weight of 180-200 g were used in the experiment. Experimental preparations were administrated on empty stomach after 12 hours of absolute diet. The animals were supervised in course of 14 days. All changes in behavior were registered. Calculations of parameters of acute and average toxicity of all analyzed forms were presented. Research results showed that all analyzed preparative forms could be referred to the substances hazard category 4 (low-hazardous substances) with lethal dose 50 more than 5000 mg/kg of live weight. It was determined that the analyzed preparative forms proved to be highly effective against strongylatosis (Strongylata) of gastro-intestinal tract of sheep and calves
显示更多 [+] 显示较少 [-]Терапевтическая эффективность электрохимическиактивированных растворов при заболевании молодняка крупного рогатого скота
2009
Shparkovich, M.V. | Stolbovoj, D.A. | Belko, A.A., Vitebsk State Academy of Veterinary Medicine (Belarus)
Investigation of efficiency of electrochemically active solutions in complex therapy of calves with diseases of the digestive apparatus and respiratory organs was realized in the conditions of the Republic of Belarus. Calves diseased with dyspepsia and bronchopneumonia were chosen for investigation of gastrointestinal diseases and respiratory diseases. At the first stage there was studied the therapeutic efficacy of water solution of electrochemically active neutral anolyte and sodium hypochloride solution Akvamed for calves sick with dyspepsia. At the second stage there was analyzed the therapeutic efficacy of 0,04 % solution sodium hypochloride Akvamed for the treatment of bronchopneumonia of calves. Research results showed that inclusion into complex therapeutic regimen of calves of electrochemically active solutions promoted the reduction of disease duration and severity. Electrochemically active solutions had high biocidal activity and could be produced in large volumes, had practical safety, low price and acute therapeutic effect
显示更多 [+] 显示较少 [-]Остаточные количества фенбендазола, ветеринарно-санитарная оценка мяса крупного рогатого скота при применении болюсов пролонгированного действия
2009
Yatusevich, I.A. | Zhukovskaya, N.I., Vitebsk State Academy of Veterinary Medicine (Belarus)
Results on determination of residual quantities of fenbendazole and its metabolites in cattle meat, organs and tissues after administration of preparation Febolvet in dose of one bolus per one animal realized in the conditions of the Republic of Belarus were presented. Animals were killed in 35 and 80 days after administration of preparation. There were no strangulates in animals organs. Pieces of nephros, liver, cordis, fat and muscle tissue were chosen for residual quantity of fenbendazole and its metabolites evaluation. The level of carcasses bleeding was good at application of boluses of infested activity with fenbendazole. In 24-48 hours of keeping in refrigerator the drying crust was well-defined, muscle tissue in cut had firm texture and from light red to red color, cut areas were wet. Tendon was form and elastic. Soup was clear, flavored and without extraneous odors. Study of physical-chemical indexes estimated peroxidase activity, pH, presence of products of primary breaking of protein in 24 and 72 hours after killing. Biological value decreased slightly (on 1,04%). Veterinary-sanitary evaluation of cattle meat was conducted in the investigation. Research results showed no residual quantities of fenbendazole in the analyzed samples after application of long lasting boluses. Application of the analyzed boluses in case of cattle strongylatosis did not lower the veterinary and sanitary indexes of meat and did not render substantial effect on its quality
显示更多 [+] 显示较少 [-]Параметры острой и хронической токсичности пролонгированного антигельминтика
2009
Yatusevich, I.A. | Zhukovskaya, N.I., Vitebsk State Academy of Veterinary Medicine (Belarus)
Results of studies of acute and chronic toxicity of control samples of long acting boluses on the basis of fenbendazole for the treatment of strongylatosis (Strongylata) of gastro-intestinal tract of cattle realized in the conditions of the Republic of Belarus were presented. White rats and mice were used for studying of acute and chronic toxicity of the prolonged anthelmintic. The preparation was tested in doses of 400; 800; 1200; 1600; and 2000 mg/kg of body weight. Prolonged anthelmintic was administrated introgastrally in the form of suspension. Preparation was reduced to fragments before application. White rats with body weight of 80-100 g were divided in three groups and were used for testing. Bolus of prolonged activity was reduced to fragments and mixed with feed before application. Rats ate the preparation during 30 day in dozes of 250 mg/kg, 375 mg/kg, and 500 mg/kg. Study of acute toxicity of preparation established that LD0 for white mice was 400 mg/kg; LD16 - 620 mg/kg; LD50 - 1080 (1062,7 / 1097, 3) mg/kg; LD84 - 1660, LD100 - 200 mg/kg. Signs of animal toxicosis were revealed in shakiness, depression, whiteness of visually accessible mucous coat, cramps. Catarrhal-haemorrhagic gastroenteritis and numerous effusions of blood on mucous coat of digestive tract were established at postmortem examination. There were no morphological changes in tissues of lungs, heart, liver and nephros. Eating of prolonged anthelmintic with feed during 30 days did not render toxicological influence on rats. There were no signs of intoxication, physiological deviations and no animal death. Research results showed that the analyzed prolonged anthelmintic could be referred the substance hazard category 3
显示更多 [+] 显示较少 [-]Ветеринарно-санитарная экспертиза мяса и продуктов убоя телят, обработанных гипериммунной сывороткой против колибактериоза сельскохозяйственных животных
2009
Dremach, G.Eh. | Aleksin, M.M. | Gorbunova, I.A. | Gorbunov, A.A., Vitebsk State Academy of Veterinary Medicine (Belarus)
Realization of veterinary and sanitary examination of meat and slaughter products of calves treated with hyperimmune serum against cattle colibacillosis was conducted in the conditions of the Republic of Belarus. There were formed two groups calves of 3-5 days old. Calves of the first group were treated with serum biological preparation of trial series produced at Vitebsk Biofabrika (Belarus). Calves of the second group were intact animals. Calves of each group were killed in 14 days after preparation application for realization of veterinary-sanitary examination. Slaughter meat was studied in accordance with the following indexes: pH; peroxidase activity; presence of products of primary protein breakdown; moisture content; relative biological value of meat; bacterial examination. The research results of organoleptic indicators showed that meat of both groups corresponded to the standards. Hyperimmune serum against colibacillosis of live-stock animals did not render negative influence on organoleptic, physical and chemical indexes of meat. Indexes of the relative biological value in meat of calves treated with the examined serum were higher than the similar indexes of intact animals. Meat of all examined animals did not have any germs of toxico-infections and toxicoses
显示更多 [+] 显示较少 [-]Эффективность применения концентрированной вакцины против рожи из матрикса Конева
2009
Dremach, G.Eh., Vitebsk State Academy of Veterinary Medicine (Belarus)
Production examination of efficiency of concentrated vaccine against swine erysipelas from matrix Konev of trial series, control of its immunizing power and production experiments of biological preparation were realized in the conditions of the Republic of Belarus. Research results showed that the presented vaccine had more expressed immunogenic properties in comparison with its production analogue and provided piglets protection against infection. There was analyzed the immunological efficiency of the vaccine: determination of quantity of erythrocytes; leukocytes; content of hemoglobin, level of lysozyme activity, bacterial growth-inhibitory activity, blood serum, phagocytic activity, neutrophilic leukocytes, content of total protein and protein fractions, titre of erysipelas antibodies, and preventive properties of blood serum. Efficiency of biological preparation was determined on the basis of analysis of disease incidence rate, loss of immunized swine caused by swine erysipelas
显示更多 [+] 显示较少 [-]Определение патогенности культуры Paenibacillus alvei, выделенной из погибшего пчелиного распада
2009
Dunets, E.N. | Gerasimchik, V.A., Vitebsk State Academy of Veterinary Medicine (Belarus)
Evaluation of pathogenicity of Paenibacillus alvei culture obtained from a dead bee brood from Berezinsky Biosphere Nature Reserve was realized in the conditions of the Republic of Belarus by an example of 30-day old white male mice with body weight of 16-18 grams. Experimental animals were infected with European foul brood (Paenibacillus alvei) intraperitoneally. Research results showed that bacteria Paenibacillus alvei after the intraperitoneal infection with various amount of microbial cells did not cause mouse death; i.e. it was not pathogenic for white mice. In course of the realized observations over the laboratory mice after introduction of infection there were stated no changes in mice behavior and overall condition. There were no visible pathologicoanatomic changes in internal organs. After the bacteriologic examination of internal organs and blood there were isolated pure cultures of Paenibacillus alvei
显示更多 [+] 显示较少 [-]Оценка антагонистической активности и эффективность применения новых бесклеточных пробиотиков
2009
Zhuk, V.P. | Mashero, V.A., Vitebsk State Academy of Veterinary Medicine (Belarus)
Evaluation of antagonistic activity of strains of lactic and bifid bacteria, metabolite producers, as well as the treatment and prophylactic efficacy of Laktimet and Batsinil probiotics was realized in the conditions of the Republic of Belarus. In course of study there were estimated 29 strains of lactic acid bacillus of different kinds, 13 strains of bifid bacteria and 35 strains of bacillus (Bac. subtilis and Bac. pumilis). There were studied 3 strains of bifid bacteria: Bifidobacterium adolescentis MS-42; Bifidobacterium adolescentis BIM V-01; Bifidobacterium adolescentis BIM V-87; 2 strains of lactic acid bacillus: Lactococcus lactis subsp. Lactis BIM V-132, Lactococcus casei subsp. rhamnosus BIM V-189; and 6 strains of Bacillus subtilis. Research results showed that the main part of the studied strains had steady antagonistic activity to test-cultures of opportunistic pathogenic bacteria. Zone of growth delay of test-cultures of the main quantity of strains (from 54 up to 92%) was from 11 up to 30. Research results showed that application of cell-free probiotics Laktimet and Batsinil promoted the increasing of resistance by means of increasing or lowering of total protein, insignificant increasing of blood serum bactericidal activity and increasing of phagocytic activity of leukocytes on 7,3%
显示更多 [+] 显示较少 [-]Питательная среда для выделения сальмонелл из водной среды
2009
Medvedev, A.P. | Biletskij, O.R. | Gribanova, M.V. | Koshnerova, L.A., Vitebsk State Academy of Veterinary Medicine (Belarus)
Creation of effective and easy-to-replicate in laboratory conditions culture medium for isolation of salmonella out of water, which could make it possible to increase the safety, authenticity and efficiency of bacteriological study of aquatic medium objects, was realized in the conditions of the Republic of Belarus. In course of the numorous preliminary experiments there was developed an enrichment medium containing the following: nutrient yeast (5 g/l); potassium phosphate monosubstituted (8,6 g/l); sodium hydrate (1,4 g/l); 0,1% brilliant green solution (5 cm3/l); 0,01% solution of crystal violet (10 cm3/l); distilled water (1 l). The analyzed medium was estimated in accordance with the following propertiesd: medium sensitivity; efficiency; inhibition of bacteria growing. Research result showed that the experimental medium was more sensitive in comparison with the selenite one. Studying of the efficiency of the compared media showed that accumulation of test strains of S. enteritidis on the experimental medium was in 10E4 times higher, S. typhi – in 10E3; S. typhiniurium, S. anatum was in 10 times higher than at selenite media. The experimental studies proved that the experimental culture medium for salmonella isolation out of city water and surface water was more sensitive and easier to use than the selenite medium
显示更多 [+] 显示较少 [-]Терапевтическая эффективность метаболитного пробиотика при гастроэнтеритах у поросят-отъемышей
2009
Pritychenko, A.V. | Pritychenko, A.N., Vitebsk State Academy of Veterinary Medicine (Belarus)
Studying of therapeutic effectiveness of metabolic probiotic Diamixan (sterile concentrate of waste products of Lactobacillus acidophilus, Lactobacillus debrueckii, and Streptococcus salivarius) against piglet gastroenteritis appearing at weaning period was realized in the conditions of the Republic of Belarus. The analyzed preparation contained complex of substances: bioartificial lactic acid, amino acids, polysaccharides, and some other ingdredients. In course of analysis of the state of intestinal microbiocenosis there were analyzed the following indexes: bifidus bacteria; lactic acid bacillus; E. coli; enterococcus; Proteus; Staphylococcus saprophyticus; Clostridia; yeast-like fungi; enterobacteria. Research results showed that application of the examined preparation made it possible to shorter the terms of animal recovery on 2,2 days, as well as to facilitate the severity of a disease. Bottle feeding of the metabolic probiotic promoted the stabilization and normalization of the main hematological indexes. The analyzed preparation created the optimal pH in lumen of the intestine, inhibited the rowth of opportunistic pathogenic bacteria, promoted quicker reconstruction of microecological status by means of normalization of standard flora of bifidus bacteria and lactic acid bacillus
显示更多 [+] 显示较少 [-]