Foetal active immunization of calves following inoculation of the dam with a bovine viral diarrhoea vaccine (Védévac)   总被引：2，自引：0，他引：2  

K Bognár 《Acta veterinaria Academiae Scientiarum Hungaricae》1973,23(1):1-11

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Comparison of immunity produced by B. melitensis Rev. 1 and B. abortus strain 19 in guinea pigs challenged a month nd a year after vaccination     

C García-Carrillo 《Zentralblatt für Veterin?rmedizin. Reihe B. Journal of veterinary medicine. Series B》1986,33(3):231-236

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Introduction of polyethylene catheter in the right common carotid artery in the rabbit     

R Príbys 《Veterinární medicína》1972,17(4):249-252

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The effect of blood-sucking diptera on the weight of grazing heifers     

J Ríha  J Minár  O Králík 《Veterinární medicína》1981,26(6):321-328

It was demonstrated experimentally that bloodsucking dipterans (gad-flies, gnats, midges, black flies) influenced negatively weight increments of grazing heifers and that it was suitable to treat the heifers with repellents; 10% water emulsion of the repellent diethyltoluamide was used for heifer spraying in the intervals of 48 hours. Over the 66 days of the experiment, the total live weight of one heifer from the test group increased by 5.00 kg, in comparison with the controls. The coefficient of loss per untreated animal was 105.00 Kcs., the returns of investments per 1.00 Kcs of investment costs were 1.90 Kcs. Owing to worse climatic conditions in the experimental years which significantly differed from meteorological conditions in the previous four years, which ensued from mathematico-statistical evaluation, differences in weight increments over the period of study were statistically insignificant.  相似文献   

Plasma ferritin of sows during pregnancy and lactation     

J J Calvo  J R Allue  A Escudero  L J García 《The Cornell veterinarian》1989,79(3):273-282

We studied a set of indicators of iron metabolism in sows and new-born piglets: hemoglobin, plasma iron, total iron binding capacity and plasma ferritin. Iron status of seventy-two sows was studied throughout pregnancy and lactation. The results point to mobilization of iron from its storage sites up to the second month of gestation, but no appreciable decrease during the second half of pregnancy. No appreciable mobilization of the iron stores of sows was observed during the lactation period. Nine sows and their 78 piglets were used to compare the status of iron in the sows and the end of gestation with the iron status of the piglets at birth; there was a positive correlation between the mean values of plasma ferritin concentration in the piglets and the levels of plasma ferritin in their mothers.  相似文献   

The effect of colostral immunity on the active formation of antibodies in pigs after the administration of inactivated vaccine against Aujeszky's disease     

L Valícek  E Jurák  L Rodák  B Smíd  L Dvorácek  A Jaks 《Veterinární medicína》1987,32(5):289-300

In a large herd of pigs where a trial was performed to cure the animals from Aujeszky's disease (AD) by applying to all animals an inactivated vaccine, a post-vaccination antibody response was studied in piglets coming from the sows that were vaccinated several times. When the piglets were vaccinated at the age of eight weeks (the average virus-neutralizing titer (VNT) of colostral antibodies was 1:11.4) and revaccinated at the age of 11 weeks, 73% of the forty-five animals (examined at the age of 17 weeks) did not have any virus-neutralizing (VN) antibodies in the blood serum. After the third vaccination dose (at the age of 17 weeks), 11% of piglets did not have any VN antibodies if they were examined at the age of 22 weeks (the average antibody VNT was 1:15.3). Applying the ELISA procedure, the antibodies were demonstrated in the sera of all piglets after three vaccination doses. Shifting the time intervals of vaccination (at the age of 8, 13 and 19 weeks), the VN antibodies were found out after three vaccination doses in the sera of all piglets examined at the age of 23 weeks (the average VNT was 1:56.4). After three vaccination doses at the age of 12, 17 and 23 weeks, the VN antibodies were also demonstrated in all piglets at the age of 27 weeks (the average VNT was 1:208).  相似文献   

Dynamics of acid-base changes during acute acidosis in cattle]     

J Bouda  P Jagos  R Dvorák  J Illek  B Hofírek 《Veterinární medicína》1977,22(5):273-280

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The pathogenetic significance of Erysipelothrix rhusiopathiae in the acute and chronic form of erysipeloid arthritis]     

L C Schulz  W Drommer  H Ehard  B Hertrampf  W Leibold  C Messow  J Mumme  G Trautwein  S Uebersch?r  R Weiss  J Winkelmann 《DTW. Deutsche tier?rztliche Wochenschrift》1977,84(3):107-111

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Blood enzyme activities in different breeds of geese.     

J Bulla  A Kolataj  J Granát  J Zelník  A Grom  M Dobálová 《British poultry science》1979,20(3):255-257

1. Enzyme activities were studied in blood plasma from Rhenish, Italian, Landes and Masseubian geese. 2. Strains used for liver production (Landes, Masseubian) showed higher activities of aspartate transaminase (AST) [EC 2.6.1.1], alanine transaminase (ALT) [EC 2.6.1.2] and fructose aldolase (FRA) [EC 4.1.2.13] while breeds with high egg production (Rhenish, Italian) had higher activities of both alkaline phosphatase (ALP) [EC 3.1.3.1] and acid phosphatase (ACP) [EC 3.1.3.2]  相似文献   

Morphologic and biochemical changes in the hypothalamus in hormonally stimulated sheep     

A Staníková  J Arendarcik  B Pástorová 《Veterinární medicína》1989,34(1):39-50

The effect of exogenous hormonal preparations (PMSG, SG, PMSG + PGF2 alpha and FSH) was studied as exerted on neurosecretion and on changes in the nuclear volume of nucleus paraventricularis, nucleus ventromedialis, nucleus infundibularis and nucleus tuberomamillaris, and on histological changes in the third cerebral ventricle. Changes in catecholamine concentrations were determined in the rostral, medial, and caudal hypothalamus of the ewes. The study was performed with 28 ewes of the Slovak Merino breed during the oestrus period. The oestrus was synchronized by the Agelín vaginal tampons (Spofa). The ewes of four experimental groups were stimulated by the administration of 1000 I.U. PMSG (Antex-Leo), 1000 I. U. Serum Gonadotropin (Bioveta Ivanovice na Hané), 1000 I. U. PMSG with 250 micrograms Oestrophan inj. (Léciva Praha), and 450 I. U. Folistiman (VEB Arzneimittelwerk Dresden, GDR). The brain samples were processed by common histological methods. A caryometric analysis was performed at 3000-fold magnification and by measurement of 200 cells of one sample. The data were subjected to mathematical processing after Fischer and Inke (1956). The amount of neurosecretory material was evaluated by light microscopy (Nakahara, 1963). The multiplication of neurosecretion in the hypothalamic nuclei testifies to the fact that the administration of hormonal preparations stimulates the function of hypothalamic structures, which corresponds with the results of the caryometric analysis. It also ensues from the results that the administration of serum gonadotropins (PMSG and SG) at the dose of 1000 I. U. results in a statistically significant decline (P less than 0.001) of the concentrations of norepinephrine in the rostral, medial and caudal hypothalami of the ewes, although the PMSG preparation has a more pronounced effect when compared with SG. The hormonal stimulation with PGF2 alpha and with FSH causes no significant changes in the concentration of norepinephrine in the hypothalamus of the ewes. As norepinephrine is considered as a neurosecretion inhibitor, the multiplication of neurosecretion in the hypothalamus nuclei after stimulation with serum gonadotropins correlates with the decline of hypothalamic norepinephrine concentrations.  相似文献