Biochemical and hematological composition of blood of cattle fed with Chlorella

Keywords: lactating cows; heifers; bioreactor; electrostatic field; fodder additive; leukogram


We researched the influence of the additive Chlorella cultivated in a closed bioreactor under the influence of an electrostatistic field, on the biochemical and hematological parameters of blood in different age groups of cattle. The experiment was conducted on two groups of three month old heifers and two groups of lactating cows in the 7th month of lactation, with 15 individuals in each group; all animals in the groups were given the basic diet. During the 120-day experiment, the experimental group of heifers was fed on a suspension of Chlorella cultivated with the technology using an electrostatic field, in the following amounts: 1–30th day – 1.51 g, 31–60th day – 1.82 g, 61–90th day – 2.01 g, 91–120th day – 2.28 g of dry substance per individual daily; the group of lactating cows during 60 days was given the Chlorella additive to the amount of 6 g of dry substance per individual per day. Over the following 30 days the heifers and lactating cows were kept under observation to determine the “aftereffects” of the Chlorella suspension fodder additive. On the first day of the experiment and after every 30 days, blood was drawn from the animals’ jugular veins for determination of the biochemical and hematological parameters of the blood During the experiment, the experimental groups of heifers and lactating cows were observed to have a strengthened antioxidant system due to increase in the activity of superoxide dismutase and catalase, and also to have a strengthened hematopoietic function and intensified metabolic and redox processes. Due to the stimulating effect of the suspension of Chlorella cultivated using the intense technology involving using an electrostatic field on the erythro- and leukopoiesis of different age groups of the cattle, we determined a strengthening of the cellular element of the animals’ immune system. During the following 30 days, the heifers and lactating cows of the experimental groups were observed to exhibit “aftereffects” of the Chlorella suspension additive, namely increases in the values of biochemical, hematological and morphological indicators of the blood in comparison with these indicators for the animals in the control groups. As a result, we concluded that feeding different age groups of cattle with suspension of Chlorella cultivated in the conditions of a closed bioreactor under the influence of an electrostatic field, in the dosage of 155 ml per kg of dry substance of the animals’ diet, contributes to the strengthening of non-specific defence of their organism, forming a potential for increasing the productive indicators and maintenance of the livestock.


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How to Cite
Bogdanova, A. A., & Flerova, E. A. (2018). Biochemical and hematological composition of blood of cattle fed with Chlorella. Regulatory Mechanisms in Biosystems, 9(2), 244-249.