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Bovine hyperkeratosis is a polyetiologic disease that is increasingly widespread at high milk yielding dairy farms. Clinical manifestation is characterized by focal skin lesions with distinct borders. A clinical study and observation were carried out on 26 Holstein-Friesian dairy cows. During the initial phase of the condition, the skin of the affected cows was itchy, hence the animals tended to lick...
The effectiveness of the immunohistochemical method in determining Cu/Zn SOD concentrations in red blood cells of dairy cattle and farm-raised deer was evaluated by a computer-assisted analysis of microscopic images and scanning technique. Superoxide dismutase (Cu/Zn SOD) concentrations in erythrocytes were determined in smears of whole blood samples collected from 16 Polish Holstein-Friesian cows...
Two theories, one based on the metabolism of inorganic substances, the other on metabolism of organic substances, have played an important role in the explanation of the origin of life. They demonstrate that the original environment of life on Earth was seawater containing micronutrients with structural, metabolic and catalytic activity. It is assumed that the first primitive organisms lived around...
The aim of this experiment was to evaluate the effect of "anionic salts", such as ammonium chloride (NH₄Cl), aluminium sulphate (Al₂(SO₄)₃·16 H₂O), ammonium sulphate (NH₄)₂SO₄, and calcium chloride (CaCl₂·2H₂O), on the calcium metabolism, copper, zinc, and molybdenum concentrations and superoxide dismutase (SOD) activity in bovine blood. The experiment was carried out on 26 cows over a 2...
The aim of the research was to evaluate serum copper concentration and superoxide dismutase activity (SOD) in the erythrocytes of cows with clinical mastitis. Forty-four cows were divided into four groups: A, B, and C with clinical form of mastitis caused by Staphylococcus aureus, Streptococcus agalactiae, and Escherichia coli, respectively, and healthy control group D. Copper concentration was determined...
There are many studies exploring the topic of acute phase response and oxidative status in inflammation of the mammary gland of cows. However, many phenomena are relatively not well known. Mastitis is associated with significantly higher concentrations of inflammatory and oxidative mediators in the cells and blood. Results of experiments have shown that there are evident changes in serum interleukins...
The most important enzymatic mechanisms which protect an organism against oxidative stress are superoxide dismutase (SOD), peroxidase (Px), e.g. glutathione peroxidase (GSH-Px) and ascorbate peroxidase, catalase and glutathione reductase. Their activity depends on many trace elements. Enzymatic mechanisms, functioning under physiological conditions, prevent the spread of free radical reactions. New...
Technological advances in last decades of XX centuries were well utilised in the studies of biological oxidation processes. Biological oxidation can lead to the oxidative stress and subsequently to the cell damage of animal organisms leading to many diseases. Free radical processes taking place in cattle under pathological conditions. Metal ions are often responsible for the damage of biological systems...
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