Agrarian Science and Food Technologies

Berezhniuk N.A., Сandidate of Аgricultural Sciences, Associate Professor

e-mail: nataber13@i.ua

Tsaruk L.L., Сandidate of Аgricultural Sciences, Associate Professor

Vinnytsia National Agrarian University

Chornolata L.P., Сandidate of Аgricultural Sciences, Senior Research Associate

e-mail: chornolata@yandex.ua

Podillia Institute of Forage and Agriculture of NAAS of Ukraine

The absorption of potassium in the body and its effect on the exchange of other biogenic nutrients is an issue that needs to be studied, and therefore we conducted a balancing experiment on young pigs, in which we studied the effect on the absorption of potassium in the body while using biologically active additives in the rations of pigs.

The probiotic Bovilact with the daily dose of 2 g was used in one experimental group, while  the enzyme preparation Macerobacillin in the amount of 0.08 g per head per day – in the other one.

As a result of the studies, it was found that Bovilact as an additive to the main ration of pigs contributed to a decrease of the excretion of potassium with feces by 0.26 g, while introduction of the enzyme preparation Macerobacillin resulted in a decrease in  the excretion of this micronutrient to  1.82 g compared to the animals of the control group.

In this case the excretion of potassium with urine, on the other hand, increased by 0.76 g in the second experimental group, and in the third experimental group the increase was 0.88 g per day compared to the control group of animals.

The total amount of potassium excreted from the body of experimental pigs with feces and urine in the second experimental group was 6.33 g, which is higher than that in the control group of animals by 0.49 g or 7.74%, and the excretion of potassium in the third experimental group was less than the control indicators by 0.94 g or 16.09%.

Consequently, the redistribution of potassium metabolism is due to a reduction in its excretion with feces, while potassium content remains at the same level in urine.

The excretion of potassium with feces decreases when Macerobacillin is introduced, but its  excretion increases with urine.

An important element of metabolism in pigs is the retention of substances coming from the feed in the body. Thus, the introduction of Bovilact into the main ration contributed to an increase in the retention of potassium in the body of animals by 0.59 g or 30.1%.

The use of Macerobacillin in the rations also significantly influenced the retention of potassium in the body. Thus, the rate of absorption of the tested element increased by 1.11 g, which is by 36.16% higher than that one of the control group of pigs.

So, the introduction of Bovilact into the rations of experimental pigs affected the reduction of potassium absorption by 30.1% relative to the control group of animals, and the use of Macerobacillin contributed to an increase in potassium content by 36.16% due to a decrease in its excretion with feces by 16.09% compared to the control group of the pigs under investigation.

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