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Wyszukujesz frazę "Stopyra, A." wg kryterium: Autor


Wyświetlanie 1-2 z 2
Tytuł:
Selected electrolytic, haematological and enzymatic parameters in horses during endurance races
Autorzy:
Stopyra, A.
Żarczyńska, K.
Snarska, A.
Sobiech, P.
Powiązania:
https://bibliotekanauki.pl/articles/961377.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Long-distance endurance races are a big challenge for a horse’s body. The prolonged exercise and dehydration associated with it, in adverse circumstances, may dysregulate many metabolic processes. The aim of this study was to assess changes in electrolyte balance in horses during endurance races, and to explain the potential need for electrolyte supplementation. The experiment was performed on fifty-six horses aged 9-15 years. Haematological and biochemical parameters of horse blood were tested before, during and after the completion of a 120 km endurance race. Electrolyte status (Na+, K+, Cl-) was assessed by analysing test results in horses that completed the race without any clinical symptoms of metabolic disorders and received no additional mineral supplements before the race. The following haematological parameters were determined: red blood cell and white blood cell counts, haemoglobin levels, haematocrit and red blood cell indices (MCV, MCH, MCHC). Enzymatic tests involved the serum levels of lactate dehydrogenase and creatine kinase. A significant increase was found in the levels of haemoglobin, lactate dehydrogenase and creatine kinase activity, but the values of these parameters were within the normal physiological ranges. Other parameters (WBC, RBC, Ht, MCV, MCH, MCHC, Na+, K+, Cl-) changed slightly, but were also within the ranges characteristic of sporthorses. The results suggest that horses well prepared for effort do not require additional supplementation of minerals during endurance races under conditions of the Polish climate.
Źródło:
Journal of Elementology; 2016, 21, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The effect of micronutrient deficiencies on the health status of transition cows
Autorzy:
Żarczyńska, K.
Żarczyński, P.
Sobiech, P.
Snarska, A.
Stopyra, A.
Wieteska, M.
Płaczek, A.
Powiązania:
https://bibliotekanauki.pl/articles/962683.pdf
Data publikacji:
2017
Wydawca:
Uniwersytet Warmińsko-Mazurski w Olsztynie / Polskie Towarzystwo Magnezologiczne im. Prof. Juliana Aleksandrowicza
Opis:
Minerals, in particular micronutrients such as copper, manganese, zinc, selenium and chromium, deliver health benefits for high-yielding dairy cows. The availability of nutrients is particularly important during the transition period (between 3 weeks prepartum to 3-4 weeks postpartum), which is a highly vulnerable time in the production cycle that determines the health status of lactating cows, their milk yield and reproductive performance. In cows, prolonged mineral deficiency can produce subclinical symptoms of nutrient deficiency and, if untreated, can lead to a clinical presentation of the disorder. Less severe deficiencies, in particular micronutrient deficiencies, are more difficult to identify because they induce only minor functional and structural changes in the body, but together with energy metabolism disorders, they can lead to oxidative stress and immunosuppression, in particular in the transition period. Micronutrient supplements reduce the harmful effects of free radicals because the majority of micronutrients form the active centers of antioxidant enzymes. Dietary supplementation promotes reproductive performance, healthy fetal development and immunity. Micronutrients alleviate bacterial infections associated with mastitis, lower somatic cell counts in milk and minimize the risk of metabolic diseases caused by a negative energy balance. This study discusses the role of the major micronutrients in cattle nutrition and their effect on the health status of transition cows.
Źródło:
Journal of Elementology; 2017, 22, 4
1644-2296
Pojawia się w:
Journal of Elementology
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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