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Wyszukujesz frazę "Kurek, K." wg kryterium: Autor


Wyświetlanie 1-7 z 7
Tytuł:
Indicators of mineral and energy metabolism in the three days following milk fever symptoms in dairy cows
Wskaźniki przemiany mineralnej i energetycznej w pierwszych trzech dobach po ustąpieniu objawów porażenia poporodowego u krów mlecznych
Autorzy:
Kurek, L.
Lutnicki, K.
Olech, M.
Powiązania:
https://bibliotekanauki.pl/articles/13574.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
A total of 60 dairy cows met the requirements of the study (50 disease cases and 10 as the control group), located on 10 farms in the central Lublin region. The cows were aged 3 to 8 years, with good or very good milk production and about a week after parturition. They were first divided into two groups based on their clinical symptoms of milk fever. During the experiment, two subgroups were distinguished from the groups, based on the condition of the animals during the observation period. At 24, 48 and 72 hour,s blood was taken from the animals after no clinical symptoms were detected and at least 36 hours after the last administration of medicines. In the first days of the analysis, low levels of minerals (calcium – Ca and inorganic phosphorus – Pi) and low concentrations of glucose and cholesterol with simultaneously higher amounts of free fatty acids (FFA) were observed in the serum. On the second day of the analysis, these levels had dropped and on the third day some of the cows were observed to have small problems with appetite or difficulty getting up; therefore, after taking material for evaluation and analysis, treatment was begun or prophylaxis increased. Based on the results, the authors can conclude that the major health threat to cows recovering from milk fever appears 2 to 3 day after the subsidence of any signs of acute hypocalcaemia, and 3 days after the last application of medicines. Cows which had been clinically healthy in this period showed significant differences in biochemistry results versus the control groups and needed to receive prophylactic preparations to resolve the mineral and energy insufficiencies. Our observations suggest the necessity for check-up blood tests in cows for 3 days after an episode of milk fever, as well as mineral and energy prophylactic supplementation during that time.
Źródło:
Journal of Elementology; 2014, 19, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Copper and iron deficiency in dairy cattle
Autorzy:
Abramowicz, B.
Kurek, L.
Chalabis-Mazurek, A.
Lutnicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/1192794.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
haematology
copper and iron deficiency
dairy cows
Opis:
Copper deficiency is a common homeostatic disorder in dairy cattle farms in Poland. A simultaneous decrease in blood copper and iron concentrations is very rarely diagnosed and described in dairy cows. Copper is necessary for the mobilization of iron from the liver and its transport to bone marrow, where it is used for erythropoiesis. The aim of the study was to observe changes in haematological parameters in cows, resulting from copper deficiency or simultaneous deficiency of copper and iron, in comparison with animals from the same herds in which no deficiencies of these micronutrients were found. The study was conducted on 56 cows of the HF breed, aged from 3 to 6 years, from 3 dairy farms. The animals selected for the study were divided into three groups, two deficiency groups and one control group – without deficiency. Group I comprised animals with reduced concentration of copper in the serum, while group II comprised animals with low copper and iron concentrations. Group III comprised healthy cows without clinical symptoms and mineral deficiency. In both deficiency groups, the one characterized by a low concentration of copper, as well as the one with low concentrations of copper and iron, a reduction in red blood cell parameters, which was statistically significant versus the control group, was observed. In the examined animals, normocytic normochromic anaemia was found in group I, while normocytic hypochromic anaemia was diagnosed in group II. Cows with simultaneous Cu and Fe deficiency have worse milk yield results and they are more often culled from the herd. It is not clear why only some animals in a herd develop simultaneous deficiency of these micronutrients.
Źródło:
Journal of Elementology; 2021, 26, 1; 241-248
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation of the effectiveness of selected phosphate preparations in the equalization of subclinical hypophosphataemia of dairy cows
Autorzy:
Olech, M.
Kurek, L.
Abramowicz, B.
Riha, T.
Lutnicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/14691.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2019, 24, 3
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hematological parameters in dairy cows with copper deficiency
Autorzy:
Abramowicz, B.
Kurek, L.
Debiak, P.
Madany, J.
Lutnicki, K.
Powiązania:
https://bibliotekanauki.pl/articles/15039.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Źródło:
Journal of Elementology; 2019, 24, 2
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in selected biochemical blood parameters following various methods of postpartum hypocalcaemia prophylaxis
Autorzy:
Kurek, L.
Lutnicki, K.
Olech, M.
Brodzki, P.
Marczuk, J.
Golynski, M.
Powiązania:
https://bibliotekanauki.pl/articles/14835.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
biochemical parameter
blood parameter
postnatal period
prophylaxis
hypocalcaemia
dairy cattle
cow
macroelement
Opis:
The current methods of preventing calcium deficiency during the periparturient period are based primarily on a diet low in calcium and acidifying the rumen content before parturition, as well as on oral administration of liquid preparations or boluses. The available literature does not provide information on whether these forms of prevention are effective only immediately after the parturition, or whether they also affect an organism throughout the initial lactation period. The aim of the study was to examine the effects of three methods for the prevention of postpartum hypocalcaemia on selected indicators of mineral and energy metabolism, as well as on functional parameters of the parenchymal organs during the two week period following parturition in dairy cows diagnosed with low calcium concentrations before parturition, induced by a lower dietary mineral content. The study was conducted in 60 HF cows, aged 3-6 years old, fed TMR. The animals were divided into three groups: the first group received only a mineral preparation contained in the feed, adjusted to the physiological stage and milk production level; the second group received three additional doses (directly before the parturition, then 24 hours and 48 hours after the delivery) of an oral fluid preparation containing 62.5 g of Ca; while the third group received an intraruminal bolus containing 43 g of pure calcium (immediately after parturition). This research showed that physiological hypocalcaemia occurred at the beginning of lactation in the groups which had received additional calcium preparations (groups II and III), whereas in group I blood collection one week and two weeks after the parturition demonstrated subclinical hypocalcaemia. A statistically significant increase in magnesium and a decrease in phosphorus concentrations were also observed in the latter group, as well as an excessive GGTP activity and high bilirubin concentrations. Using only one complex mineral supplement in high yielding milk cows after parturition does not ensure the expected prophylactic effects, especially in the long term.
Źródło:
Journal of Elementology; 2016, 21, 1
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Changes in selected biochemical blood parameters following various methods of postpartum hypocalcaemia prophylaxis
Autorzy:
Kurek, L.
Lutnicki, K.
Olech, M.
Brodzki, P.
Marczuk, J.
Golynski, M.
Powiązania:
https://bibliotekanauki.pl/articles/1189793.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Tematy:
biochemical parameter
blood parameter
postnatal period
prophylaxis
hypocalcaemia
dairy cattle
cow
macroelement
Opis:
The current methods of preventing calcium deficiency during the periparturient period are based primarily on a diet low in calcium and acidifying the rumen content before parturition, as well as on oral administration of liquid preparations or boluses. The available literature does not provide information on whether these forms of prevention are effective only immediately after the parturition, or whether they also affect an organism throughout the initial lactation period. The aim of the study was to examine the effects of three methods for the prevention of postpartum hypocalcaemia on selected indicators of mineral and energy metabolism, as well as on functional parameters of the parenchymal organs during the two week period following parturition in dairy cows diagnosed with low calcium concentrations before parturition, induced by a lower dietary mineral content. The study was conducted in 60 HF cows, aged 3-6 years old, fed TMR. The animals were divided into three groups: the first group received only a mineral preparation contained in the feed, adjusted to the physiological stage and milk production level; the second group received three additional doses (directly before the parturition, then 24 hours and 48 hours after the delivery) of an oral fluid preparation containing 62.5 g of Ca; while the third group received an intraruminal bolus containing 43 g of pure calcium (immediately after parturition). This research showed that physiological hypocalcaemia occurred at the beginning of lactation in the groups which had received additional calcium preparations (groups II and III), whereas in group I blood collection one week and two weeks after the parturition demonstrated subclinical hypocalcaemia. A statistically significant increase in magnesium and a decrease in phosphorus concentrations were also observed in the latter group, as well as an excessive GGTP activity and high bilirubin concentrations. Using only one complex mineral supplement in high yielding milk cows after parturition does not ensure the expected prophylactic effects, especially in the long term.
Źródło:
Journal of Elementology; 2016, 21, 1; 77-87
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Long-term subclinical copper deficiency and it is influence on functions of parenchymal organs and the serum macro-element deficiency in dairy cows
Autorzy:
Kurek, Ł.
Olech, M.
Lutnicki, K.
Riha, T.
Brodzki, P.
Gołyński, M.
Abramowicz, B.
Powiązania:
https://bibliotekanauki.pl/articles/962687.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Copper deficiency is a mineral management disorder increasingly often diagnosed in dairy cattle herds in Poland. Diagnosis of this disorder in herds can be very difficult as subclinical deficiencies may occur over long periods of time without clear clinical symptoms. Subclinical or atypical deficiencies that long remain untreated cause major disturbances in homeostasis. Information is scarce in the literature about the changes that occur in biochemical blood parameters in the course of atypical long-term subclinical copper deficiency. This study was conducted on a group of 80 cows from farms in the central part of the Lublin region in Poland. The animals were divided into four groups: three groups with Cu deficiency (two of these groups did not receive preventive supplementation, and the third one had oral copper supplementation administered) and a control group (clinically healthy cows). Blood for the tests was collected in the same period, 6 and 12 weeks after calving and a year after the previous tests. The results obtained in the groups where no special preventive measures had been taken showed a negative influence of copper deficiency on the functional condition of organs, especially the liver and pancreas (in the final stage of the study), and on blood phosphorus concentration. Such findings were not observed in the group supplemented with a copper-rich feed additive. In this group, after only a month of being supplemented with a preparation containing copper, a 15% increase in milk yield was observed. Meanwhile, the milk yield decreased in the remaining groups.
Źródło:
Journal of Elementology; 2017, 22, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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