A thirst for knowledge (Miraida I. Vakulenko)]     

Z Khalidov 《Veterinariia》1976,(3):43-44

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Characteristics of the meat of cattle with cysticercosis due to experimental infection with the eggs of the tapeworm Taenia saginata and treated with praziquantel     

J Gilka  J Habrda  B Janková  P Krejcí  Z Matyás 《Veterinární medicína》1983,28(5):257-268

Eleven test and control bullocks of the Bohemian Spotted breed were studied for the effect of cysticercosis and their treatment with praziquantel on the properties of meat and fat. As found, the disease affected the composition of meat and fat and some of the studied characteristics and technological properties of meat. Although the measles disappeared after treatment, they were not resorbed. Therefore, irrespective of the worsened meat quality, the meat and organs of such animals cannot be evaluated in any other way but according to the valid veterinary regulations.  相似文献   

Atkinsiella hamanaensis sp. nov. isolated from cultivated ova of the mangrove crab,Scylla serrata (Forsskål)*     

B. Z. BIAN  S. EGUSA 《Journal of fish diseases》1980,3(5):373-385

Abstract. Atkinsiella hamanaensis sp. nov. a marine mastigomycete isolated from ova of the mangrove crab, Scylla serrata (Forsskål), is described and illustrated. The fungus grew over a temperature range of 15–32°C, with an optimum of 29–32°C. Its growth was observed in peptone-yeast extract glucose broth containing 1–5% NaCl, with optimum growth at 2–3% NaCl concentration. At 6% or more NaCl concentration, growth was inhibited. Its pH tolerance ranged from 4 to 9.  相似文献   

Research on Septoria Leaf Blotch: Recent Advances¹     

Z. EYAL 《EPPO Bulletin》1981,11(2):53-57

A review of the recent advances in research on Septoria leaf blotch is given with particular emphasis on epidemiology and control strategies. The effect of straw infected with pycnidia of Septoria tritici or perithecia of its perfect stage Mycosphaerella graminicola , infected seeds and alternative hosts on the initiation of epidemics is discussed. Reference is made to the effect of plant stature on the vertical progress of the disease. The role of fungicide protection in the control of the disease is discussed. Resistance and tolerance to Septoria leaf blotch is dealt with in more detail, with reference to the author's own research, and with implications on breeding strategies.  相似文献   

The development of antibodies in rabbits and cattle infected experimentally with an african strain of malignant catarrhal fever virus     

P.B. Rossiter  E.Z. Mushi  W. Plowright 《Veterinary microbiology》1977,2(1):57-66

An indirect immunofluorescence (IIF) test for antibody to wildebeest-derived strains of malignant catarrhal fever virus (MCFV) was developed using infected bovine embryonic kidney cells as antigen. This IIF technique and a microtitre method for the assay of virus-neutralizing (VN) antibody were then applied to sequential serum samples from rabbits and calves infected experimentally with a virulent strain of MCFV, which caused lethal disease.Antibody of the IIF type appeared in both species about 6–7 days prior to the onset of pyrexia and increased continuously until death. Neutralizing antibody was detected shortly before the end of the incubation period in the majority of rabbits but was not produced in calves which were killed up to 3 days after reaction. The presence of either antibody did not affect the fatal outcome in rabbits.  相似文献   

Cell lines from sheep and cattle blood     

Z. Woldehiwet  R. H. Johnson  G. R. Scott 《Veterinary research communications》1981,5(1):183-185

A simple and reproducible method of establishing cell lines from the blood of sheep and cattle is described. Buffy coat cells were allowed to adhere to plastic culture flasks in media containing 20 per cent autologous plasma overnight. The fluids were then replaced with growth medium supplemented with non-inactivated foetal calf serum, lamb serum or autologous serum. Ovine cell lines were established with any of the serum supplements but bovine cell lines were established more readily if unheated autologous serum was used.  相似文献   

Pea early-browning virus and tobacco rattle virus — two different,but serologically related viruses     

D. Z. Maat 《European journal of plant pathology / European Foundation for Plant Pathology》1963,69(5):287-293

Summary Early-browning virus (EBV) and tobacco rattle virus (RV) show similarities in many of their properties, although there are also some distinct differences (Bos & van der Want, 1962). Serological experiments carried out by the present author showed that EBV and RV are distantly related. Because of the difference in the normal lengths of their particles they have to be considered as separate viruses. It is suggested that they be regarded as members of one group.Samenvatting Vroege verbruining, een virusziekte bij erwten, is uitvoerig onderzocht doorBos & van der Want (1962). Uit hun onderzoek is gebleken dat de verwekker van deze ziekte, het vroege-verbruiningsvirus (EBV), veel overeenkomst vertoont met het ratelvirus van tabak (RV). Beide virussen hebben dezelfde deeltjesvorm, maar ze verschillen in lengte (EBV 105 en 210 m en RV 70 en 180 m). Beide gaan met de grond over en komen overeen wat betreft hun eigenschappenin vitro. Ook wat hun uitwerking op waardplanten betreft lijken ze, met uitzondering van enkele karakteristieke verschillen, veel op elkaar. Het duidelijke verschil in deeltjeslengte geeft aan, dat er verschillende virussen in het spel zijn. Het leek echter niet uitgesloten, dat ze toch in zekere mate verwant zouden zijn. Om deze mogelijkheid na te gaan werd uitvoerig serologisch onderzoek verricht. Met behulp van antisera met titers van ca. 1/128 kon geen verwantschap worden aangetoond (tabel 1). Daarom werden sterkere antisera bereid. Hiertoe werden EBV en RV vermeerderd opNicotiana rustica L. en gezuiverd volgens een enigszins gewijzigde methode vanWetter (1960).Door het toepassen van een combinatie van intraveneuze en intramusculaire injecties werden zeer sterke antisera verkregen. Met behulp daarvan werden beide virussen opnieuw getoetst. Als controle diende aardappel-X-virus (PVX), dat op dezelfde wijze was vermeerderd en gezuiverd als het EBV en het RV. De resultaten van deze proef zijn vermeld in tabel 2. Daar er nog een zwakke reactie met de controle optrad, werden de antisera verzadigd en werd de proef herhaald. De resultaten hiervan zijn weergegeven in tabel 3. Met de controle trad toen geen reactie meer op, terwijl EBV en RV nog duidelijk met elkaars antisera reageerden. Daar zowel een wederzijdse besmetting van EBV en RV als een gemeenschappelijke besmetting met een ander virus was uitgesloten, kunnen we concluderen, dat EBV en RV verwante virussen zijn. Naar analogie van wat door Duitse onderzoekers voor andere virussen is gevonden, kunnen we ook hier spreken van afzonderlijke virussen, die waarschijnlijk in eenzelfde groep ondergebracht kunnen worden.In het algemeen zijn in de tabellen slechts die antigeenverdunningen weergegeven, waarbij een maximale antiserumtiter werd gevonden. Wanneer geen bepaalde verdunning is aangegeven, betekent dit dat geen enkele verdunning reageerde.  相似文献   

The effect of Rumensin on the metabolic profile of rumen fluid in feedlot cattle     

R Dvorák  J Dvorák  Z Vrba  M Hradilová  J Ondrová 《Veterinární medicína》1980,25(10):585-600

The effects were studied of sodium monensinate dosed 125 mg on the metabolic profile of rumen fluid. The experiment was conducted under current farming conditions in a pavilion cattle fattening house. The experiment, which lasted 367 days, comprised 985 bulls of the Bohemian Spotted breed. The feed ration was based on silage with an additive of dried poultry litter and concentrates. The additive was administered in concentrate mixture, 125 mg per head/day. After the start of the experiment want of appetite to sodium monensinate was observed. The animals took approximately four weeks to adapt completely to the additive. The following characteristics were investigated to study the metabolic profile of rumen fluid: actual acidity, total titration acidity, ammonia, total nitrogen, lactic acid, total volatile fatty acids, per cent acetic acid, per cent propionic acid, molar ratio acetic acid: propionic acid, per cent iso- and n-butyric acid, absolute number of infusoria and energy net yield of volatile fatty acids. Increased levels of the clinico-biochemical parameters of the metabolic profile of rumen fluid were found in lactic acid, propionic acid and energy net yield of volatile fatty acids. The per cent of propionic acid increased at some samplings by up to 116%. A drop was recorded in total nitrogen, per cent acetic acid, per cent butyric acid, molar ratio C2 : C3 and total number of infusoria. The decrease in the per cent of acetic acid ranged around 16% and the drop in butyric acid level amounted at some samplings up to 78%. No response to the additive was observed in the other characteristics of the metabolic profile of rumen fluid.  相似文献   

Hypoproteinemia and alpha globulin deficiency in round heart disease of turkeys   总被引：2，自引：0，他引：2  

R Meirom  M Z Trainin  A Barnea  F Neumann  U Klopfer  T A Nobel  M S Dixon  H O Plesser 《The Veterinary record》1974,94(12):262-264

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An improved staining method for the counting of white blood cells in poultry     

Z Procházka 《Archiv fuer experimentelle veterinaermedizin》1967,21(2):603-607

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