Toxoplasma gondii antibodies in the white stork Ciconia ciconia     

Andrzejewska I  Tryjanowski P  Zduniak P  Dolata PT  Ptaszyk J  Cwiertnia P 《Berliner und Münchener tier?rztliche Wochenschrift》2004,117(7-8):274-275

The prevalence of Toxoplasma gondii in chicks of wild birds and captive individuals was studied in the Poznań environs and in the Poznań Zoological Garden in the years 2002-2003. Bird blood was tested for T. gondii antibodies by an indirect fluorescent antibody test. T. gondii antibodies were detected from 5.8% of 205 analysed white stork chicks and 13.6% of 44 analysed adult storks in the zoo. Because toxoplasmosis is one of the more common parasitic zoonoses worldwide, we briefly discuss the potential epidemiological importance of stork toxoplasmosis to humans.  相似文献   

Decorin concentrations in canine normal and neoplastic mammary gland tissues     

Marek Szczubiał  Marta Kankofer  Jacek Wawrzykowski  Roman Dąbrowski  Wojciech Łopuszyński  Mariola Bochniarz  Piotr Brodzki 《Reproduction in domestic animals》2020,55(10):1404-1410

In the present study, the concentration of decorin in canine normal and neoplastic mammary gland tissues was examined to understand the potential role of decorin in development and progression of canine mammary tumours. The homogenates of 48 mammary gland tumours (10 benign and 38 malignant) and 10 samples of normal canine mammary gland tissue were used in the study. The presence and quantification of decorin was examined in the homogenates using Western blot and specific canine ELISA. Western blotting confirmed the presence of decorin both in the normal mammary gland tissues and in the mammary gland tumours. The concentration of decorin was significantly higher (p < .05) in the benign tumours and non-metastatic malignant tumours than in the normal mammary gland. The concentration of decorin was significantly lower (p < .05) in the malignant tumours with metastasis to regional lymph nodes compared with benign tumours and non-metastatic malignant tumours. No significant differences were found in the level of decorin between the benign and the non-metastatic malignant tumours. Both the histological type of malignant tumours and the histological grade did not significantly affect the concentration of decorin. These findings suggest that neoplastic transformation in the canine mammary gland leads to increase in the decorin protein synthesis. The reducing decorin concentration in canine malignant mammary tumours appears to facilitate the metastatic spread of these tumours.  相似文献   

Changes in blood gonadotropin level in mature female carp following hypophysial homogenate injections     

Krzysztof Bieniarz  Piotr Epler  Bernard Breton 《Aquaculture (Amsterdam, Netherlands)》1980,20(1):65-69

A hypophysial homogenate injection increased blood gonadotropin level in adult female carp and maintained it at that level for three days after injection.The blood gonadotropin level in adult female carp seems to be dependent on the physiological condition of the ovary expressed by the relation of old oocytes with a completed vitellogenesis process to the new ones, and the relation of the oocytes with the nucleus shifted to the periphery to those with a centrally placed nucleus.  相似文献   

In vitro evaluation of the ovistatic and ovicidal effect of the cosmopolitan filamentous fungi isolated from soil on Ascaris suum eggs     

Joanna Blaszkowska  Piotr Kurnatowski  Anna Wojcik  Katarzyna Goralska  Katarzyna Szwabe 《Veterinary parasitology》2014,199(3-4):165-171

The ovicidal activity of seven fungal strains: Acremonium alabamense, Alternaria chlamydospora, Cladosporium herbarum, Fusarium solani, Paecilomyces variotii, Paecilomyces viridis and Penicillium verruculosum isolated from urban soil samples from Poland was determined in vitro. The fungal mycelium was co-cultured with Ascaris suum eggs on plates with 2% water–agar for 28 days. Eggs exposed and unexposed (control) to fungal mycelium were observed weekly by light microscopy and the percentage of malformed eggs were determined. The eggs were classified according to following parameters: type 1 – biochemical and physiological effect without morphological damage to the eggshell; type 2 – lytic effect with morphological alteration of the eggshell and embryo; type 3 – lytic effect with morphological alteration of eggshell and embryo with hyphal penetration and internal egg colonization. All examined species of fungi extended embryogenesis, but the retardation of embryonic development was varied and depended on the species. A. alabamense, A. chlamydospora and P. verruculosum exhibited very high inhibitory activity on A. suum egg development. The fungus-exposed eggs revealed morphological alternations in all stages of embryogenesis. Isolates of F. solani, P. variotii and P. viridis showed hyphal penetration and internal colonization of A. suum eggs (type 3 effect). No appressoria were produced and simple hyphal penetrations were most commonly observed. A. alabamense and P. verruculosum demonstrated morphological destruction, with eggshell destruction. The remaining fungi showed type 1 effect. The results demonstrated that examined strains of F. solani, P. variotii and P. viridis may be considered to be potential limiting factors of parasitic geohelminth populations.  相似文献   

The Use of a Plastic Guide Improves the Safety and Reduces the Duration of Endotracheal Intubation in the Pig     

Adrian JANISZEWSKI  Robert PAS?AWSKI  Piotr SKRZYPCZAK  Urszula PAS?AWSKA  Andrzej SZUBA  Józef NICPO? 《The Journal of veterinary medical science / the Japanese Society of Veterinary Science》2014,76(10):1317-1320

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Multifactorial Analysis of the Follicular Environment is Predictive of Oocyte Morphology in Cattle     

Ewelina WARZYCH  Adam CIESLAK  Zofia E. MADEJA  Piotr PAWLAK  Anna WOLC  Dorota LECHNIAK 《The Journal of reproduction and development》2014,60(1):1-8

Numerous attempts have been recently made in the search for a reliable, fast and noninvasive assay for selection of oocytes suitable for in vitro embryo production. Potential markers have been described in the follicle such as follicular fluid (FF) or cumulus cells (CCs). However, the reported findings are contradictory, which may reflect the complexity of metabolism of the ovarian follicle. In the present experiment, a data set from individual follicles of known diameter was obtained: cumulus-oocyte complex (COC) morphology, fatty acid composition and glucose concentration in FF as well as apoptotic index in CCs. The obtained data was statistically analyzed either separately (univariate analysis) or simultaneously (multivariate analysis) to examine its predictive value in morphology assessment of bovine COCs. Although the univariate analysis yielded a complex relation system of the selected parameters, no clear outcome could be established. In multivariate analysis, the concentration of the four fatty acids (C16:0, C16:1, C18:1cis9, C22:5n3) and Δ⁹-desaturase (16) as well as elongase activities were selected as covariates. This allowed prediction of the morphology of a COC with an accuracy of 72%, which is the most interesting finding of the experiment. The present study indicates that the multifactorial model comprising of selected parameters related to the follicle appeared more effective in predicting the morphology of a bovine COC, which may improve the effectiveness of in vitro production systems.  相似文献   

Landscape patterns of variation in blood glucose concentration of nestling blue tits (Cyanistes caeruleus)     

Adam Kaliński  Mirosława Bańbura  Michał Glądalski  Marcin Markowski  Joanna Skwarska  Jarosław Wawrzyniak  Piotr Zieliński  Iwona Cyżewska  Jerzy Bańbura 《Landscape Ecology》2014,29(9):1521-1530

Integration of landscape ecology and conservation physiology has been recommended as a potentially useful way to investigate consequences of human-induced changes in habitats for animal populations. A central goal of this paper was to examine if a simple physiological parameter displays any consistent patterns of spatio-temporal variation. Blood glucose concentration in birds reflects their high metabolic demands and may be influenced by a number of environmental factors. Therefore we present results concerning variation in glucose concentration in the blood of c. 14-day-old nestling blue tits (Cyanistes caeruleus) in central Poland in an 8-year period, 2005–2012, in two landscapes: an urban parkland and a deciduous forest. The most important findings of the study were: (1) mean levels of blood glucose varied markedly among years, most probably due to variable weather conditions, (2) glucose concentrations were significantly higher in the parkland study site than in the forest site, (3) heavier nestlings had lower glucose levels, and (4) high glucose levels were negatively correlated with fledging and breeding success. Thus we have confirmed that a consistent spatio-temporal pattern really exists.  相似文献   

Transgenic cucumber lines expressing the chimeric pGT::Dhn24 gene do not show enhanced chilling tolerance in phytotron conditions          下载免费PDF全文

Tomasz L. Mróz  Agnieszka Ziółkowska  Piotr Gawroński  Ewelina Pióro‐Jabrucka  Sylwia Kacprzak  Magdalena Mazur  Stefan Malepszy  Grzegorz Bartoszewski 《Plant Breeding》2015,134(4):468-476

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How geographic and climatic factors affect the adaptation of Douglas-fir provenances to the temperate continental climate zone in Europe     

Niemczyk  Marzena  Chmura  Daniel J.  Socha  Jarosław  Wojda  Tomasz  Mroczek  Piotr  Gil  Wojciech  Thomas  Barb R. 《European Journal of Forest Research》2021,140(6):1341-1361

European Journal of Forest Research - The contribution of Douglas-fir (Df) to European forests is likely to increase as the species is a potential adaptation option to climate change. In this...  相似文献