Wyniki wyszukiwania - AGRO

1

The kinase suppressor of Ras [KSR-1] is required for differentiation of HL60 cells induced by near-physiological levels of 1,25 dihydroxyvitamin D3

100%

Wang X., Studzinski G. P.

Cellular and Molecular Biology Letters

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2002

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tom 07

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nr Suppl.

2

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Effect of disinfectants on Toxocara canis eggs survival

88%

Gundlach J. L., Sadzikowski A. B., Tomczuk K.

Wiadomości Parazytologiczne

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1998

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tom 44

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nr 3

3

The influence of environmental factors on survival of Yersinia enterocolitica 0:3

88%

Kot B., Blaszczyk M., Kulawiec U.

Polish Journal of Environmental Studies

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2005

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tom 14

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nr 3

The influence of the presence of bacteriophage ZD5, temperature, pH and the interaction of these factors on survival of Y. enterocolitica cells in pond water and buffers was examined. The presence of bacteriophage ZD5 and temperature have substantial influence on survival of Y. enterocolitica cells in buffers with different pHs. The statistical analysis showed a significant influence of the presence of phage ZD5 on the decrease in the number of Y. enterocolitica cells incubated in buffers with pHs 6, 7, and 8. In the presence of phage ZD5, pH itself turned out to be of no significance because the average numbers of Y. enterocolitica cells obtained in pHs 6, 7, and 8 did not differ significantly at p≤0.05. Statistical analysis confirms significant influence of the presence of phage ZD5 on the reduction of the number of Y. enterocolitica cells in pond water at both 4°C and 20°C. The lowest average value of the number of cells was obtained at 4°C in the presence of phage ZD5, both in the tested buffers and in the pond water.

4

Survival of Escherichia coli and Aeromonas hydrophila in non-carbonated mineral water

88%

Korzeniewska E., Filipkowska Z., Zarnoch D., Tworus K.

Polish Journal of Microbiology

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2005

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tom 54

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nr Suppl.

The study was carried out on the survival of Escherichia coli and Aeromonas hydrophila in samples of mineral waters. Enumeration of the bacteria was performed by spread inoculation of samples (0.1 cm³) over the surface of selected media in Petri plates. Twenty bottles (four bottles of each of the five brands) of non-carbonated mineral waters with different levels of dissolved solids and organic content were chosen to study every strain. Ten bottles were stored at 4°C, the other ten were kept at 22°C. Half of the samples of mineral water was filtered, the remaining water was unfiltered. The resulting growth curves depended on the time of storage. The number of E. coli increased during the first two weeks (except the seventh day) and decreased during the next days. E. coli was detected in 70% of samples of water after 182 days. The number of A. hydrophila decreased during the first three days, increased on the seventh day and decreased during the next days. A. hydrophila was detected in 15% of the samples of water after 182 days. The temperature of storage was inessential for growth. The most important factors were the brand and the filtering or unfiltering of water. The highest numbers of the bacteria analysed were detected in filtered water, irrespective of the water brand and temperature of storage.

5

Survival of radiocollared adult leopard cats Prionailurus bengalensis in Thailand

88%

Haines A. M., Grassman L. I., Tewes M. E.

Acta Theriologica

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2004

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tom 49

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nr 3

From December 1999 to December 2002, we radiocollared 25 adult (17 M, 8 F) leopard catsPrionailurus bengalensis Kerr, 1792 in Phu Khieo Wildlife Sanctuary, Thailand. We found no difference in annual survival rate between adult males (0.96 ±0.05) and females (0.87 ± 0.13), and we found no difference in mean seasonal survival rates between the dry (0.95 ± 0.04) and wet season (0.97 ± 0.04). We estimated a pooled mean annual survival of 0.92 ± 0.06 for adult leopard cats, and also estimated annual survival rates of 0.83 ± 0.24 and 0.53 ± 0.21 for leopard cats in 2 other studies. We believe our high mean annual survival estimate of adult leopard cats was related to our study site being located within a remote wildlife sanctuary with minimal anthropogenic effects.

6

Effect Cynkotox [Zineb] on the survival of some indicator bacteria and enteric pathogens in lake water

88%

Niewolak S., Komar M., Golas I.

Polish Journal of Natural Sciences

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2002

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tom 12

7

Survivability of Salmonella senftenberg W 775 in cattle slurry under various temperature conditions

88%

Budzinska K.

Folia Biologica

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2005

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tom 53

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nr Suppl.

8

Survival of Corynebacterium pseudotuberculosis within macrophages and induction of phagocytes death

75%

Stefanska I., Gierynska M., Rzewuska M., Binek M.

Polish Journal of Veterinary Sciences

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2010

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tom 13

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nr 1

143-149

Since C. pseudotuberculosis is a facultative intracellular pathogen the aim of this study was focused on evaluating mechanisms that allowed these bacteria to survive in macrophages and determining their influence on induction of cell death. The influence of Corynebacteria on the programmed cell death of macrophages was determined on the basis of induction the autophagy and apoptosis in the cultures of murine macrophage cell lines J774 infected with bacteria. Corynebacterium pseudotuberculosis strains could survive within macrophages more than 48 hours. During that time bacteria were released as a result of the process that lead to death of phagocytes. This property varied among studied strains. There was no increase of micro- tubule-associated protein I light chain 3 (MAP I LC3) activity in macrophages infected with examined strains comparing with uninfected cultures and cultures treated with autophagy inducer (rapamycin) that served as negative and positive controls, respectively. The study with confocal microscopy did not show the increasing of caspase-3 activity in the infected macrophages and their nucleus did not reveal the fragmentation.

9

Influence of different oxygen and nitrogen mixtures on the survival of worker bees after anesthesia with carbon dioxide

75%

Madras-Majewska B., Ochnio L., Ochnio M., Zajdel B., Kaminski Z., Ostaszewska T., Kamaszewski M.

Medycyna Weterynaryjna

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2014

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tom 70

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nr 12

Bee anesthesia has long been widely used in scientific research and for practical purposes. Bee anesthesia is usually induced with carbon dioxide. It is required for such procedures as populating mating hives and cages, introducing queen bees and instrumental insemination. The oxygen to nitrogen ratio may play a very important role in the process of awakening. The aim of the experiment was to investigate the survival rate of worker bees after the application of different concentrations of oxygen and nitrogen in their recovery from anesthesia. The general purpose was to determine the optimal gas mixture for the fastest recovery and the longest survival of bees. The results of this study provide a basis for future experiments on queen bees aimed at accelerating the awakening from anesthesia with carbon dioxide during insemination as well as the initiation of laying eggs. The lowest bee mortality in the first days after awakening from anesthesia was observed in the group awoken in a mixture of 48.6% O₂ and 51.4% N₂, but the highest average survival rate was noted in the group awoken in 60% O₂ and 40% N₂.

10

Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age

75%

Ambroziak E., Rekiel A.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

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2017

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tom 56[1]

Effect of birth weight of piglets on growth rate and rearing performance up to 8 weeks of age. The aim of the experiment was to determine the effect of the birth weight of piglets on their rearing results up to 56 days of age, as expressed by growth rate and survival. Observations were made on 277 crossbred piglets from 22 litters of F1 sows (Polish Landrace ´Polish Large White) derived from crossbred boars (Duroc ´Pietrain), which were kept and fed the same way. Piglets were reared with mothers for 5 weeks and observed for 8 weeks. At 1, 7, 21 and 56 day of age, piglets were individually weighed. The body weight on day 1 of age served as a basis for dividing the piglets into groups I, II, III and IV (≤1.2; 1.21-1.39; 1.40-1.59; and ≥1.60 kg body weight, respectively). Coefficients of correlation were estimated between body weight on day 1 of age and at 7, 21 and 56 days of age, and daily gains. The mean body weight of the piglets on days 7, 21 and 56 differed between groups I, II, III and IV (P ≤0.01) and depended on the birth weight (r=+0.773, r=+0.567, r=+0.504). In the subsequent rearing periods, daily gains in groups I-IV increased and the differences between the groups showed similar relationships. Differences between groups II and III were small (P>0.05), and those between groups I and IV considerable and highly significant. With the increasing mean body weight at birth, piglet survival increased and was higher in group IV vs I by 13.64 percentage points. The birth weight ≥ 1.60 kg ensured the best growth rate and survival of the piglets.

11

Effect of temperament on performance of primiparous dairy cows

75%

Sawa A., Bogucki M., Neja W., Krezel-Czopek S.

Annals of Animal Science

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2017

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tom 17

|

nr 3

12

Embryo development and survival in beef cattle administered ergotamine tartrate to simulate fescue toxicosis

75%

Schuenemann G. M., Hockett M. E., Edwards J. L., Rohrbach N. R., Breuel K. F., Schrick F. N.

Reproductive Biology

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2005

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tom 05

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nr 2

13

Growth and survival of prebiotic lactic acid bacteria in the presence of heterocyclic aromatic amines

75%

Nowak A.

Żywność Nauka Technologia Jakość

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2014

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tom 21

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nr 3

Heterocyclic aromatic amines (HCAs) ingested with heat-processed meat can contribute to colon cancer development. Those compounds interact with human intestinal microbiota. Under the research study, the effect was analyzed of IQ, MeIQx, or PhIP amines (each of them at 5 and 25 μg/ml concentration rates) on the growth (24 h cultivation in MRS broth) and survival (incubation for max. 120 h in a phosphate buffer) of four probiotic strains of Lactobacillus. It was found that no concentration level of the HCAs analyzed impacted the growth of bacteria. A higher concentration level of IQ (25 μg/ml) decreased the survival of Lb. casei 0900 after a 24 h period of incubation. MeIQx and PhIP also decreased the survival of Lb. paracasei 0919 after a 24 h period of incubation. Totally, the count of living cells decreased from 109 cfu/ml to 108 cfu/ml. Three strains were absolutely resistant to PhIP during a 120 h period of incubation. The results obtained prove that the probiotic bacteria studied maintain their high viability in the presence of the amines tested and, probably, they can bind together with them in human colon and, then, the aggregated particles are removed from the human body.

14

Survival of piglets from sows receiving energy supplement in the form of rapeseed oil

75%

Michalska G., Nowachowicz J., Zuraw J., Bucek T.

Annals of Animal Science. Supplement

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2003

|

nr 1

15

Survival of Oidium lycopersici [Cook et Massee], the causal agent of tomato powdery mildew

75%

Sobolewski J., Robak J.

Vegetable Crops Research Bulletin

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1998

|

tom 49

16

Effect of fungicide Topsin M70 WP [Thiophanate-methyl] on the survival of some indicator bacteria and enteric pathogens in lake water

75%

Niewolak S., Komar M., Golas I.

Polish Journal of Natural Sciences

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2002

|

tom 10

17

Effect of some factors on brood survival in a bee colony

75%

Kruk C., Skowronek W.

Journal of Apicultural Science

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2001

|

tom 45

18

Survival of Paenibacillus larvae subsp. larvae endospores in honey substitute obtained from bee colonies affected with American foulbrood

75%

Jelinski M.

Bulletin of the Veterinary Institute in Puławy

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2003

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tom 47

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nr 1

19

Mercury toxicity to Chlorella vulgaris Beijerinck: protection by amino acids

75%

Mohanty L., Mohapatra D. K., Mohapatra P. K., Mohanty R. C.

Polish Journal of Environmental Studies

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1998

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tom 07

|

nr 1

Mercury is known to be toxic to a number of phytoplankton even at very low concentrations. The metal inhibited survival, growth and biosynthesis of chlorophyll, carbohydrate and lipid of the green alga Chlorella vulgaris at its toxic concentrations (≥ 0.1 μM), but induced the biosynthesis of proline. The addition of amino acids (Alanine, Aspargine, Glutamate, Histidine and Cysteine) to the growth medium had a significant impact on bioassay results. The toxicity was expressed differently depending on concentration and type of amino acid added to cultures. LC50s ranged from 0.68 ± 0.004 to 0.97 ± 0.008 μM and the acute toxicity of Hg2+ in amino acid supplemented media followed the order C > C + ALA > C + GLU > C + ASP > C + HIS > C + CYS. The static dose of the metal to the alga was found to be 1 + 0.006 μM but its inhibitory effect on the alga was drastically reduced with the addition of amino acids. There were positive correlations between growth and metabolic activities of the alga and concentration of amino acid added to cultures at the presence of static concentration of Hg2+. The results suggested that amino acids have moderating effects on toxicity of Hg2+ because of their ability to regulate the concentration of free Hg2+ ions in growth medium.

20

The effect of temperature and organic substances on the survival of Escherichia coli and Streptococcus faecalis in lake water

75%

Zmyslowska M.

Polish Journal of Environmental Studies

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1993

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tom 02

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nr 2

Studies have shown that the bacteria strains Eschericha coli and Streptococcus faecalis survive 2 to 8 days longer at 4°C than at 20°C in the same lake water samples. An addition of glucose to lake water increased survival of these bacteria strains by 2 to 4 days. An addition of peptone was even more effective. Survival of E. coli increased by 5-15 days, and of Str. faecalis by 11-19 days. It was also found that E. coli showed longer survival than Str. faecalis in water samples with no organic additives and those containing glucose. In the case of water samples with peptone, survival of the two strains did not differ.

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