Influence of cadmium loading on glutathione system of antioxidant protection of the bullocks’bodies

It was presented the results of studies of the cadmium effect loading on the activity of the glutathione system of antioxidant protection in young cattle, namely on the activity of glutathione peroxidase, glutathione reductase, glucose-6-phosphate dehydrogenase, the level of reduced glutathion. It was established that feeding of cadmium chloride to bullocks at a dose of 0.03 and 0.05 mg/kg body weight contributed to a decrease in both the enzyme and non-enzyme link of the glutathione antioxidant defense system. The toxic effect of cadmium contributes to a change in stationary concentrations of radical metabolites. О2˙ˉ, ˙ОН, НО2˙, which, in turn, initiate lipid peroxidation processes. The lowest level of glutathione indexes of the antioxidant defense system in the blood of young cattle was established on the sixteenth and twenty fourth day of the experiment, it was associated with enhanced activation of lipoperoxidation and an imbalance between the activity of the antioxidant system and the intensity of lipid peroxidation. The feeding of cadmium chloride to bullocks at a dose of 0.03 and 0.05 mg/kg of animal weight did not affect the activity of the glutathione antioxidant defense system in their blood. It was established that the greater the amount of cadmium chloride in the feed, the lower the activity of the glutathione system of the antioxidant defense of the body of bulls. Thus, cadmium chloride suppresses the antioxidant protection system, in particular, by reducing the activity of the enzyme link: glutathione peroxidase, glutathione reductase, glucose-6-phosphate dehydrogenase, and non-enzyme link: reduced glutathione

The effect of antioxidants on biochemical and morphological indicators of the piglet's blood

The work aimed to study the influence of methifen, fenarone, and methionine on the biochemical and morphological indicators of the piglet’s blood. We researched three-month-old large white piglets. 10 groups were formed, each with 5 animals: a control group and nine experimental groups. We established that antioxidants promote an increase in the erythrocyte number and the Hb level to the upper limits of physiological indicators from the 10th day of the test. On the 60th day, the erythrocyte number in the blood of piglets fed methionine varied between 7.15 ± 0.12 – 7.30 ± 0.12 B/l. This indicator was 7.34 ± 0.10 – 7.64 ± 0.11 B/l (Р < 0.05) in the group fed fenarone, and 7.64 ± 0.14 – 7.65 ± 0.11 B/l (Р < 0.05) in animals fed methifen. On the 90th day, the erythrocyte number was the highest in animals that were fed methifen at a dose of 0.9 mg/kg body weight. Relative to piglets of the C group, the aforementioned indicator increased by 12.9 %. We also found a slight growth in the activity of aminotransferases in the blood serum of piglets of the experimental groups. In addition, it was found that the studied drugs do not affect the mononuclear system. It was indicated by the number of leukocytes, which was within the limits of physiological parameters during the experiment and ranged from 10.0 ± 0.12 to 11.8 ± 0.6 G/l. The highest indicators of enzyme activity, hemoglobin content, and the number of erythrocytes in the blood of animals of the experimental groups were established on the 60th and 90th days of the trial. It manifested the best effect under methionine feeding at a dose of 4 mg/kg body weight, fenarone – 1.20 mg/kg body weight. and metifen – 0.9 mg/kg body weight

Effect of milk thistle and silimevit on the functional state and protein synthesizing-function of the liver of laying hens under conditions of cadmium load

The purpose of the work was to study the effect of Cadmium on liver function disorders and to develop practical recommendations for using silimevit and milk thistle to reduce the toxic effect of Cadmium on chickens. To achieve the set goal in experiments on chickens under cadmium load, it was necessary to solve the following tasks: to study the effect of Cadmium on the protein synthesis function of the liver of laying hens; to study the effect of Cadmium on the functional state of the liver of laying hens; to investigate the effect of silimevit and the fruits of milk thistle on the functional state of the liver of laying hens under cadmium load; to investigate the effect of silimevit and milk thistle fruits on the protein synthesis function of the liver of laying hens under cadmium load and to justify the use of silimevit and milk thistle to prevent cadmium toxicosis in chickens. Drinking cadmium sulfate to laying hens violates the liver's functional state and protein-synthesizing function. A decrease in total protein and albumin content in their blood was established (Р < 0.001). An increase in alanine and aspartate aminotransferase activity was detected (Р < 0.001). Silimevit and milk thistle positively affect the functional state of the liver of laying hens under cadmium load, as evidenced by a decrease in the activity of aminotransferases in their blood serum. Silimevit and spotted thistle, under the cadmium load of laying hens, positively affect the liver's protein-synthesizing function, evidenced by an increase in total protein and albumin fraction. Feeding laying hens under cadmium load with slime feed contributed to a better-normalizing effect on the activity of aminotransferases and protein-synthesizing function of the chickens' liver than milk thistle

The effect of butaselmevit and closaverm A on the immune status of cows with experimental fasciolosis sensitized by atypical mycobacteria

There are many reports in the literature about the critical role of the immune system in protecting the body against foreign agents. However, the role of immune status in the association of mycobacteriosis and fasciolosis has not been studied. The work aimed to investigate the effect of butaselmevit and closaverm A on the immune status of cows with experimental fasciolosis sensitized by atypical mycobacteria. For the trial, 15 cows of 4–5 years of age, black and spotted breed, were selected, from which 3 groups were formed, five animals in each. Cows of the first research group for experimental fasciolosis were injected intramuscularly with closaverm A at a dose of 0.5 ml of the drug per 10 kg of body weight. The animals of the second experimental group, for experimental fasciolosis, were intramuscularly injected with closaverm A at a dose of 0.5 ml of the drug per 10 kg of body weight and butaselmevit at a dose of 10 ml of the drug per animal. The obtained results indicate that the drugs “Klosaverm A” and “Butaselmevit” when administered intramuscularly to cows with experimental fasciolosis, sensitized by atypical mycobacteria, contribute to the activation of cellular and nonspecific links of immunity. It should be noted that a number of our research also established the stimulating effect of drugs on the humoral link of immunity, in particular, an increase in the bactericidal and lysozyme activity of blood serum of cows associated with mycobacteriosis and fasciolosis. Using “Klosaverm A” and “Butaselmevit” drugs in experimental groups of animals helped reduce the level of CIC to physiological values starting from the 21st day of the experiment. It should be noted that according to the indicators of the immune system in cows with experimental fasciolosis, sensitized by atypical mycobacteria, the combined use of closer A and butaselmevit shows a better therapeutic effect than the use of only closaverm A alone

Визначення параметрів гострої токсичності та кумулятивних властивостей препарату “Ліпоінтерсил”

The research aimed to determine the acute toxicity and cumulative properties of the liposomal drug “Lipointersil” based on interferon and spotted milk thistle. The acute toxicity of the “Lipointersil” drug was assessed in white rats, aged 2–3 months, with a body weight of 170–180 g through intragastric and intramuscular administration. After administration of the drug, the dose and the number of animals that died were recorded, and the median lethal dose (DL50) of the investigated drug was calculated using the method of H. Kerber. The cumulative properties were determined in white rats aged 2–3 months, weighing 170–185 g, using the subchronic toxicity test method by K. S. Lim et al., modified by K. K. Sydorov. Based on the conducted research, it was established that the “Lipointersil”drug, according to the State Standard of Ukraine 85.2-37-736:2011, belongs to class IV toxicity (slightly toxic substances). The LD50 for intragastric and intramuscular administration in white rats is 5166.66 and 5833.33 mg/kg of body weight, respectively. In determining of the cumulative properties of the “ Lipointersil ” drug, no deaths of experimental animals were observed during the study. Moreover, the animals remained active, fed well, and had dense, shiny fur. The coefficient of accumulation of the “Lipointersil” drug was more than 8.31 units, indicating its weakly pronounced cumulative properties. Prolonged daily administration for 24 days of “Lipointersil” had no significant impact on the functional state of the liver and kidneys. Under long-term (24 days) daily administration in increasing doses, the drug “Lipointersil” caused slight destruction of hepatocyte membranes, as indicated by the increased activity of alanine and aspartate aminotransferases and alkaline phosphatase.Метою досліджень було визначення гострої токсичності, а також кумулятивних властивостей ліпосомального препарату “Ліпоінтерсил” на основі інтерферону та розторопші плямистої. Гостру токсичність препарату “Ліпоінтерсил” визначали на білих щурах, 2–3-місячного віку, масою тіла 170–180 г за внутрішньошлункового та внутрішньом’язового введення. Після введення препарату враховували дозу та кількість тварин, які загинули, та вираховували середньосмертельну дозу (DL50) досліджуваного препарату за методом Г. Кербера. Визначення кумулятивних властивостей проводили на білих щурах 2–3-мiсячного віку, масою тіла 170–185 г тест-методом “субхронічної токсичності” за К. S. Lim із співавторами, у модифікації К. К. Сидорова. На основі проведених досліджень встановлено, що препарат “Ліпоінтерсил” згідно СОУ 85.2-37-736:2011 належить до ІV класу токсичності (малотоксичні речовини). DL50 за внутрішньошлункового та внутрішньом’язового введення білим щурам становить, відповідно 5166,66 та 5833,33 мг/кг маси тіла. При визначенні кумулятивних властивостей препарату “Ліпоінтерсил” загибелі дослідних тварин упродовж досліду не було виявлено. При цьому тварини були активними добре поїдали корми, шерсть була густою, блискучою. Коефіцієнт кумуляції препарату “Ліпоінтерсил” становив більше 8,31 одиниці, що вказує про слабко виражені його кумулятивні властивості. Довготривале щоденне введення протягом 24 діб “Ліпоінтерсилу” мало вплив на функціональний стан печінки та нирок. За умов довготривалого (24 доби) щоденного введення у зростаючих дозах препарат “Ліпоінтерсил” викликає незначну деструкцію мембран гепатоцитів, про що вказує підвищення активності аланін-, аспартат-амінотрансфераз та лужної фосфатази