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Prooxidant and antioxidant processes and diseases of cattle resulting from decreased bioavailability, or redundant copper in animal feed are often connected to biogeochemical and antropogenical factors. Therefore, it is very important to include biogeochemical and antropogenical zones in which animals were raised while analysing the bioavalibility of trace elements in feeds and the disturbances in their metabolism. The goal of the study was to evaluate the nutrition of dairy cows with feeding matter originating from the region irrigated with utility refuses from the potato industry through prooxidant and antioxidant activity in blood of cows. The experiment comprised 120 cows of the Black-White breed, at 5 to 7-years-of-age. Cows were chosen from 3 districts. Cows from A and B, the experimental groups, inhabited areas irrigated with utility refuses from a potato processing company. The area inhibited with cows from A group was irrigated with utility refuses by using a flow method. The area inhabited with cows from B group was irrigated with utility refuses by using a sprinkle method. Cows from C group (control) inhabited an area where utility refuse irrigation was not used. Mineral analysis of utility refuses had been made before experiment started. The cow blood parameters determined were copper and malondialdehyde. The average value of particular parameters for cows from group A was, respectively: 10.33 and 1.82 µmol/dm3; for cows from group B it was, respectively: 8.88 and 2.47 µmol/dm3; and for cows from control group C it was, respectively: 11.41 and 1.49 µmol/dm3. The analysis of results showed that nutrition of dairy cows with fodder from the region irrigated with utility refuses from the potato industry produced an intensification of prooxidant process and decreased copper concentration in the blood of cows.
Medycyna Weterynaryjna
|
2010
|
tom 66
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nr 08
s.570-572,rys.,tab.,bibliogr.
The aim of the research was assessing the cadmium effect on selected oxidative and biochemical parameters in broiler chickens. The experiment was conducted on 6-week-old broiler chickens that were given cadmium chloride in drinking water at an amount of 12.5 mg per day for 2 weeks. After euthanasia, samples of liver, kidneys, lungs, heart, gizzard, breast muscle and brain tissue were taken and the concentration of malone dialdehyde (MDA) was determined. In full blood glutathione peroxidase activity was measured while in serum concentrations of uric acid, cholesterol, total protein, glucose, MDA concentration and the activity of aminotransferases AST and ALT was determined. Administration of cadmium chloride to broiler chickens caused the increase of malone dialdehyde concentration in brain tissue, kidneys and lungs. The increase of glucose level and raised activity of AST and ALT in blood serum were also observed.
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