Wyniki wyszukiwania - AGRO

1

Effect of soil contamination by copper on the content of macroelements in spring barley

100%

Wyszkowski M., Wyszkowska J.

Polish Journal of Natural Sciences

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2003

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tom 14

2

Makro i mikroelementy zdrowia

86%

Rajzauer-Kruzel B.

Biuletyn Informacyjno-Handlowy. Ośrodek Doradztwa Rolniczego Boguchwała

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2001

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nr 03

25-26

3

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The content of mineral elements in two lamb genotypes dependent on the system of maintenance

86%

Pieta M., Patkowski K.

Journal of Elementology

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2009

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tom 14

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nr 3

527-537

The aim of the study was to determine the content of macro- and microelements in the blood serum and in the longissimus dorsi muscle (Musculus longissimus dorsi – Mld) of lambs, dependent on the system of maintenance of the lambs with their mothers, the genotype and the year of research. Lambs were reared together with their mothers in two maintenance systems: indoor system in a sheep fold and outdoor system in the open air with unlimited access to pasture. The lambs were of two genotypes: PLS (Polish Lowland sheep Uhruska variety) and BCP (the synthetic prolific meat line sheep). The concentration of elements in the blood serum was estimated in the second and third month of life, as well as in the Mld, after slaughter of the lambs at a weight of 25-28 kg. The results of the study show that the mineral compositions of blood change with the lamb’s age and related method of feeding. The system of maintenance had a modifying effect on the calcium, copper and zinc content in the blood serum, especially in the third month of the lambs’ life. It was noted that the copper content in the longissimus dorsi muscle in the lambs kept with their mothers in the outdoor system was higher compared to the lambs kept indoors. A similar tendency was observed in the content of mineral elements in the blood serum and in the longissimus dorsi muscle, dependent on the genotype and maintenance system. The concentration of elements (except sodium) in the blood serum in the lambs comprised within the reference values set for adult sheep.

4

The influence of pregnancy and lactation on the magnesium and calcium concentration in goats' blood serum

86%

Brzezinska M., Krawczyk M.

Journal of Elementology

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2010

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tom 15

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nr 1

31-37

The aim of this work was to trace differences in magnesium and calcium concentrations (both total and ionic form) between goats which were in late pregnancy and lactating goats. The study involved 30 goats. Blood samples were taken three times from each goat. Total concentrations of magnesium and calcium were determined with the colorimetric method and (A — 1.581 mmol dm-3; B — 2.052 mmol dm-3; C — 2.112 mmol dm-3). Ionic form of calcium based on using ion—selective analysis (A — 1.219 mmol dm-3; B — 1.126 mmol dm-3; C — 1.123 mmol dm-3). The study showed that mean value of both the total of calcium from each goat did not reach the reference level for this species. Ionic form of calcium was within the lever limit of the physiological norm. The content of magnesium in all the groups was within the range of reference concentrations (A — 1.051 mmol dm-3; B — 1.165 mmol dm-3; C — 1.117 mmol dm-3).

5

Sulphur as a fertiliser component determining crop yield and quality

86%

Skwierawska M., Benedycka Z., Jankowski K., Skwierawski A.

Journal of Elementology

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2016

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tom 21

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nr 2

The aim of this paper was to review 100 years of Polish studies on sulphur fertilisation and its effects on the growth and development of plants, the chemical composition and impact of sulphur compounds on the health of plants, and its fungicidal activity. In the reviewed studies sulphur deficiency generally delayed vegetative growth, caused the dying out of the growth cone, yellow discolouration of the generative and vegetative organs and delayed maturation. Observations of plants have demonstrated that sulphur is essential for normal photosynthetic functions. Plants suffering from a lack or shortage of sulphur had pale green or yellowish, narrow, short and small leaves, and a smaller than normal root system, which was associated with reduced chlorophyll synthesis. The availability of sulphur was found to enatil an improved uptake of nitrogen by plants, thus affecting their quality and optimising the N:S ratio. Fertilisation with sulphur increased the total content of sulphur and sulphates in plants. Findings from studies on the effect of sulphur on the content of macroelements in tested plants are inconclusive. Sulphur used in excess disturbed the ionic balance in plants and indirectly affected the intensity and level of uptake of other nutrients. The results of studies investigating the impact of sulphur on changes in the content of heavy metals were ambiguous and demonstrated either synergistic or antagonistic interactions. Generally, sulphur fertilisation increased the content of glucosinolates in plants and improved their nutritional value. Most studies also showed that sulphur fertilisation improved the disease resistance of plants. Some studies have also demonstrated an increased content of glucosinolates in plants fertilised with sulphur, which stimulated natural resistance to fungal infections.

6

Possible use of natural zeolites in animal production and environment protection

86%

Burmanczuk A., Rolinski Z., Kowalski C., Burmanczuk N., Markiewicz W.

Journal of Elementology

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2015

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tom 20

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nr 4

Natural zeolites contain micro- and macroelements such as calcium, magnesium, potassium, iron and copper. The aim of the following study has been to determine changes in poultry production induced by adding naturally occurring zeolites as dietary supplements. The study was carried out on 20,000 one-day chicks of the fattening breed called Ross. The birds were divided into two groups: the control group (group C) and the group supplemented with 5% of zeolite added to the feed (group E). Observations lasted for 45 days. Weekly measurements of the body weight of randomly chosen chicks were taken in both groups, and dead birds were counted. The composition of faeces was analyzed with an absorbance test. The air composition was determined with an instrument specially designed for that purpose. Differences in the body weight between groups C and E reached approximately 10%. A decrease in the mortality rate among chicks was observed in the treatment versus the control group. Mineral substances such as calcium and phosphorus were higher by about 4.4% and 9.5%, respectively, in the experimental group. Less ash in faeces (by about 20.4%) and less ammonia in the air (by about 33%) were determined for the experimental group, too. The present results may have important implications for poultry production, especially the fact that zeolite supplementation increased the body weight gain and reduced the number of falls. In conclusion, it is recommended to include zeolite in feed additives.

7

Macro- and microelements in eel (Anguilla anguilla) from the northern regions of Poland

86%

Polak-Juszczak L., Robak S.

Journal of Elementology

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2015

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tom 20

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nr 2

The abundance of the eel (Anguilla anguilla) in Europe has been on the decline in recent years, to the extent that this fish species is now considered to be threatened with extinction. Hence, the current implementation of the Eel Management Plan in Poland, whose aim is to restore w stocks of this fish. The main natural habitats of eel are the transitional waters of the Vistula and Szczecin lagoons and lakes in northern Poland. The eel is highly valued by many consumers for the taste and texture of its meat. The aim of the study was to determine differences in concentrations of macro- and microelements and toxic metals in muscles of the eel as a function of each specimen’s length, mass and the origin. The results of the study also served an evaluation of the health benefits and risks to consumers of eel meat with regard to the content of macro- and microelements and toxic metals. Specimens of the eel (Anguilla anguilla) were caught in 2011-2013, in five regions of Poland: the southern Baltic, inland lakes in northeast Poland, the Vistula and Szczecin lagoons, and in the Vistula River. The concentrations of Ca, P, Mg, Na, K, Fe, Sr, Zn and As were determined with optical emission spectrometry. The flameless atomic absorption spectrometry method was used to measure concentrations of Cu, Cd and Pb. The content of Hg and Se were determined with atomic absorption, those of mercury with cold vapour, and of selenium with hydride generation. The concentrations of macro- and microelements in most instances, with the exception of P and Zn, were negatively correlated with the eel’s length and mass, which indicated that small fish contained more minerals than large specimens. The eel is a rich source of phosphorus, zinc, selenium and iron, and it can supply significant quantities of the daily requirements of human consumers for these minerals. The other minerals occurred in eel muscle at levels that ranged from 2 to 6% of human daily requirements. Among the toxic metals, mercury was the cause for concern, while cadmium and lead occurred at low levels in all of the specimens examined regardless of their size. The mean concentration of mercury ranged from 0.147 to 0.273 mg kg-1 and was positively correlated with specimen length and mass. The content of mercury in large eel exceeded 0.500 mg kg-1, while small eel (up to 70 cm) contained lower levels of mercury. Large eel exceeding 70 cm can pose a threat to the consumer’s health because of mercury, and especially its organic from of methylmercury. This is why consumers should limit long-term consumption of larger eel, while it is safe to consume smaller specimens since they contain less mercury and more minerals than do large eel.

8

The effect of polyelectrolytes addition on potato stillage microfiltration

86%

Piotrowska-Cyplik A., Czarnecki Z., Cyplik P.

Food Science and Technology. Scientific Papers of Agricultural University of Poznan

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2001

|

tom 05

9

Macro- and microelements content in the sward depending on soil chemical composition

86%

Czyz H., Niedzwiecki E., Trzaskos M., Protasowicki M.

Folia Universitatis Agriculturae Stetinensis. Agricultura

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1999

|

tom 80

10

Interaction between mercury and macro- and microelements in animals

86%

Kossakowski S., Grosicki A.

Polish Journal of Environmental Studies

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1996

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tom 05

|

nr 3

We have reviewed available data from our and other laboratories relevant to the effects of single and repeated intoxication with mercury on the metabolism of several elements in animal bodies. Additionally, emphasis has been placed on the influence of zinc and selenium on mercury toxicity. The data indicate that mercuric chloride and methyl mercury affect quite differently the distribution pattern and concentrations of trace elements in animal organs. Moreover, it should be stressed that mercury intoxication decreases bone radiocalcium and thyroidal radioiodine levels which correlated with the size of mercury doses. The disturbances were chiefly attributed to impairments of the gastrointestinal absorption in mercury intoxicated rats. Moreover, haemodynamic alterations and mercury trace ele- ments-metallothionein complexes may also result in these disturbances. The effect of zinc on mercury toxicity is not uniquivocal. In contrast, the ability of selenium to decrease mercury's deleterious effect in animals is well recognised.

11

Accumulation of macroelements in plants on newly established fallows

86%

Zarczynski P., Sienkiewicz S., Krzebietke S.

Journal of Elementology

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2008

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tom 13

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nr 3

In spring 1996, four types of fallows were established on good wheat complex soil (classified as IIIa in the Polish soil classification system): sown with oriental goat’s rue (Galega orientalis, Lam.), traditional fallow, seeded with a mixture of oriental goat’s rue (Galega orientalis Lam) and smooth brome (Bromus inermis) and under smooth brome (Bromus inermis). This paper documents the results obtained in 2000-2004. Plant samples (4 x 1 m2) were taken from the fallows once every year at the same plant growth and development stage. The content of macroelements in the plant material was determined using conventional methods. The statistical elaboration of the results was based on the analysis of regression and correlation. The results proved that fallow under perennial plants is superior in activating and cycling nutrients to traditional fallow, overgrown with wild plants. On the other hand, when fallow soil is covered exclusively with a papilonaceous plant (e.g. oriental goat’s rue), it is more likely to experience transfer of nitrates (V) to ground waters. A good solution to this problem could be sowing fields which are set aside as fallows sown with a mixture of oriental goat’s rue and smooth brome. Soil protected by these two plants remains fertile and does not create an ecological risk caused by migrating N-NO3.

12

Selected blood and bone biochemical values in single and twin lambs born in autumn and spring

86%

Baranowski P., Baranow-Baranowski S., Klata W.

Bulletin of the Veterinary Institute in Puławy

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1999

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tom 43

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nr 2

The aim of the studies was to compare the Ht values and the content of Hb in blood, total protein. Na, K, Ca, inorganic P and Mg in blood serum and bone tissue in lambs born in different seasons. A higher (P≤0.05) Ht value, K and Ca content, and a lower total protein, Na, inorganic P and Mg content were found in the blood of lambs born in autumn. A higher (P≤0.05) content of Ca and Mg, but a lower of Na, K, and inorganic P were found in the bone tissue of lambs born in autumn compared to the content of those elements in spring born lambs. The type of lambs’ birth was of no effect on the content of macroelements examined in their bone tissue. No differences were found in Hb content and body weight in lambs born in selected seasons.

13

Effect of soil contamination by cadmium on potassium uptake by plants

86%

Ciecko Z., Kalembasa S., Wyszkowski M., Rolka E.

Polish Journal of Environmental Studies

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2004

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tom 13

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nr 3

The aim of the experiment was to determine the effect of cadmium (10, 20, 30 and 40 mg Cd · kg-1 soil) on the potassium uptake by oats, maize, yellow lupine and radish. The effect of organic matter on cadmium immobilization was investigated in several treatments of the experiment using non-supplemented soil and soil supplemented with compost soil, brown coal, lime or bentonite. The correlations between the potassium content and the cadmium contamination of the soil, plant yield and the content of macro- and microelements in the plants were determined. The species and organ of the plants determined the uptake of potassium and influenced the effect of cadmium on the uptake of potassium by plants. Artificial soil contamination by cadmium reduced the content of potassium in oat grains and in the above-ground parts and roots of yellow lupine and radish. A reverse effect - an increase in the concentration of potassium, was found for oat straw and roots and maize roots. The application of compost soil, brown coal, lime and bentonite reduced the potassium concentration in the particular organs of the experimental crops. The concentration of potassium was positively correlated with plant yield and the content of macroelements and some microelements in them.

14

Nitrogen species and macroelements in aerosols over the Southern Baltic Sea

86%

Nadstazik A., Marks R., Schulz M.

Oceanologia

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2000

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tom 42

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nr 4

The annual cycle of atmospheric nitrogen species and macroelements (Na+, K+, Ca2+, Mg2+ and Cl−) over the south-eastern Baltic region was investigated. A one-year record enabled the variability of nitrogen species and macroelements in the aerosol over the coastal station at Hel to be traced. The highest concentrations of sea salt components were recorded in summer, while anthropogenic nitrate concentrations were highest in winter. When the air masses were of mixed marine and continental origin, the nitric acid reacted with coarse sea salt particles to form stable, coarse sodium nitrate. This seems to be a permanent removal pathway for nitrate. Anthropogenic aerosol species like NH+4 or NO− 3 formed by gas-to-particle conversion were generally associated with fine particles (<1 μm). Coarse particles like sodium or chloride resulted from resuspension from seawater.

15

Content of macroelements and microelements in six different soils after 15 years of appropriate fertilisation

86%

Grzeskiewicz H.

Acta Agrophysica

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2001

|

tom 52

Systematic examinations of the soil in the static experiments carried out from 1974 by IHAR, Jadwisin Division, with respect to such parameters as pH, the content of available forms of phosphorus, potassium and magnesium, as well as some microelements (boron, zinc, manganese, copper), showed that common potato soils require systematic organic and mineral fertilisation as well as liming in order to maintain high productivity. The results obtained in 1997, after 15 years (from the time of last examinations in 1982) constitute the evidence supporting the above conclusion. For example pH in KCl increased from 5.61 to 5.94, the content of phosphorus, respectively, from 15.67 to 23.63 mg, potassium from 14.46 to 17.36 mg and magnesium from 3.66 to 7.25 mg/100 g of the soil and the content of microelements increased as follows: boron from 0.23 to 0.46 ppm, zinc from 4.86 to 5.63 ppm, manganese from 274.40 to 137.53 ppm in the soil.

16

Toxic metals in bottom sediments and ferromanganese concretion of the Southern Baltic Sea

86%

Szefer P.

Oceanological Studies

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2000

|

tom 29

|

nr 1

17

Mineral composition of high blueberry leaves and fruits depending on substrate type used for cultivation

72%

Ochmian I., Grajkowski J., Mikiciuk G., Ostrowska K., Chelpinski P.

Journal of Elementology

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2009

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tom 14

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nr 3

509-516

In 2004-2006, an experiment was established at the Experimental Station Rajkowo belonging to the Agricultural University (West Pomeranian University of Technology) in Szczecin. High blueberry bushes were planted in an alkaline reaction (pH 7.1) heavy soil using three different substrates. The bushes were planted in trenches filled with peat, cocoa husk and sawdust. The fertilization of the plants was limited to a sole nitrogen supply (30 kg N ha-1), because chemical analyses of both the soil and the substrates showed high and/or moderate content of other nutrients. In order to decrease cocoa husk reaction and to maintain the reaction of peat and sawdust, the bushes were irrigated with H2SO4 acidified water up to pH 2.5-3.5. The bed prepared of cocoa husk was characterized by the highest N (23.8 mg 100 g-1), Zn content (51.6 mg kg-1), and pH (5.0). On the other hand, sawdust substrate had the lowest salinity (0.35 g NaCl kg-1). Sawdust substrate showed the highest level of Mn (56.5 mg kg-1) and Cu (7.4 mg kg-1) and the lowest of Ca (83 mg 100 g-1), whereas, peat substrate showed the highest salinity (0.87 g NaCl kg-1) and the lowest pH (3.8). The usage of cocoa husk substrate resulted in the highest content of N (23.6), K (6.9 g kg-1) and Mn (104.5 mg kg-1) in cv. Sierra blueberry leaves as well as N (16.0) and K (6.5 g kg-1) in berries. The plants grown in sawdust substrate showed the highest level of Ca (1.75 g kg-1), Cu (3.2) and Zn (12.4 mg kg-1), in the leaves as well as S (1.7) and Cu (3.5 mg kg-1) in berries.

18

Distribution of elements in soils of moraine landscape in Masurian Lakeland

72%

Smolczynski S., Orzechowski M.

Journal of Elementology

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2010

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tom 15

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nr 1

177-188

The research was carried out in three catenas, in which the soils made a typical toposequence of the moraine landscape in Masurian Lakeland, i.e. eroded soils, deluvial soils, mucky soils as well as slightly and strongly silted peat-muck soils. The total content of Ca, Mg, K, P, Na, Fe, Mn, Zn and Cu was analyzed in these soils. The amounts of soil organic matter and measured elements showed catenal variation. Mucky soils had the highest content of Mg, K, Fe and Na whereas strongly and slightly silted peat-muck soils contained the highest amounts of P, Mn, Ca and Cu. The content of Ca was positively correlated with organic matter content. The amount of Mg, K, Cu and Mn was positively correlated with the amount of clay fraction. As the studied soils are located at the bottom of a slope, downwards water flow, where mineral compounds are accumulated in deposits or dissolved in water, mucky soils and silted peat-muck soils contain high amounts of the analyzed elements. Mucky soils and silted peat-muck soils play a role of biogeochemical barriers protecting wetlands against nutrients from surrounding moraine uplands. Surface horizons of deluvial soils were depleted of the analyzed elements (excluding P) whereas AO horizons of mucky soils and Mt horizons of peat-muck soils were abundant in the measured elements (excluding Ca). Various amounts of the analyzed elements in the pedons of the catena sequences should be taken into consideration when planning land use in the moraine landscape, which has unique natural values.

19

Nutritional assessment of selected patients with cancer

72%

Surwillo A., Wawrzyniak A.

Roczniki Państwowego Zakładu Higieny

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2013

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tom 64

|

nr 3

Background. It is recognised that both nutritional status and an improper diet have significant effects on weakening the outcomes of treatment in cancer patients. As a result, a lowered response to therapy and an increase in untoward side effects is often observed leading to a deteriorating quality of life. The role of an adequately balanced diet is thus regarded as being vital in supporting recovery. Objective. To assess the dietary consumption of calories, macro-elements and selected vitamins and minerals for subjects diagnosed with cancers of the breast, lungs and bones or soft tissue. Material and Methods. A survey was performed on 100 subjects diagnosed with various tumours between the September and December months of 2011 consisting of 34 with breast cancer, 33 lung cancer and 33 with bone or soft tissue cancer. The questionnaire was devised in-house, which included a three day dietary record. Results. The average daily calorific intake was found to be inadequate at 1608 kcal. In addition, abnormal proportions of energy derived from macro-elements was seen, where the contributions made by fats and proteins were somewhat high at respectively 35.1% and 16.5%, but too low in the case of carbohydrates at 52.1%. Up to 78% subjects had insufficient protein intakes, 88% showed deficiencies in consuming carbohydrates, as were 89% for fibre, 85% vitamin C, 99% calcium, 98% magnesium and 81% for iron. Conclusions. Many dietary shortcomings were observed in the studied subjects. There is therefore a need to educate persons suffering from cancer to adopt an adequate and balanced diet as means of providing vital support for treatment to be more effective.

20

Seasonal changes in the nutritional status and yielding of Anthurium cultorum Birdsey. Part I. Macroelements

72%

Kleiber T., Komosa A., Krzyszkowska J., Molinski K.

Folia Horticulturae

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2009

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tom 21

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nr 1

81-93

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