Efficiency of use of carbon ferrozine-containing sorbent in the diets of lactating cows and rabbits

The article discusses the research results of the radiological efficiency of the carbon ferrocin-containing ¹³⁷Cs sorbent produced at the Institute of Nature Management of the National Academy of Sciences of Belarus on cattle and small farm animals.

The experiment was held at the Branch of the “Agro-Vetka” JSC “Vetka Agroservice” farm located in the Vetka district, Gomel region, Belarus, and involved two groups of lactating cows, 5 heads each. The experiment group, unlike the control one, was given a sorbent at a rate of 40 g per head per day mixed in the diet. Milk samples of the cows of the experiment and control groups were taken on the 0, 5, 8, 11, 14, 17 and 20th day of the experiment. Starting from the 5th day and up to the 20th day of sorbent feeding, a 1.7 to 4.5 time decrease in the ¹³⁷Cs content in milk was observed.

The sorbent cost in the experiment group per 1 thousand Bq of the obtained difference (against the control group) in the 137Cs content in milk was 0.65 rubles. The ferrocin use for the same purpose can be approximately 5.2 times more expensive.

The adsorption efficiency of ¹³⁷Cs by domestic sorbents based on carbon and ferrocin on small farm animals was studied. The experiment lasted 30 days and involved 4 groups of the 3-month Pannon White male rabbits, including 1 control and 3 experiment groups, three rabbits per each group. The experiment groups were formed using a pair matching method. Ferrocin and carbon-modified sorbents were mixed into the composition of rabbit compound feed.

The 1st group received 0.2 g ferrocin per head at a rate of 100 mg per 1 kg of live weight. The 2nd and 3rd groups were given 2 and 4 g of carbon ferrocin-containing sorbent per head, respectively, at a rate of 1 and 2 g per 1 kg of live weight, respectively. The effect of the carbon and ferrocyanide (5 %)-modified sorbent at a dose of 2 and 4 grams per rabbit is by a factor of 1.4 and 2.6, respectively, more effective than the application of ferrocin alone. A dose of 4 grams of the carbon-modified sorbent is by a factor 1.8 more effective than that of 2 grams.

The costs associated with 1 thousand Bq difference in accumulation of ¹³⁷Cs in rabbit meat in the “carbon sorbent 2 g/head” and “carbon sorbent 4 g/head” groups is respectively 0.93 rubles, or 7.6 times, and 0.83 rubles, or 4.0 times, lower than those in the “ferrocyn” group.

1. Recommendations for the conduct of agricultural production in the conditions of radioactive contamination of the lands of the Republic of Belarus for 2012–2016. Minsk, 2012. 122 p. (in Russian).

2. Karpenko A. F. Radioecological state of agricultural lands in the Gomel region. Biodiagnostika sostoyaniya prirodnykh i prirodno-tekhnogennykh sistem: materialy ХVI Vserossiiskoi nauchno-prakticheskoi konferentsii s mezhdunarodnym uchastiem (Kirov, 3–5 dekabrya 2018 goda). Kniga 1 [Biodiagnostics of the state of natural and natural-technogenic systems: materials of the XVI All-Russian scientific and practical conference with international participation (Kirov, December 3–5, 2018). Book 1]. Kirov, 2018, рр. 292–297 (in Russian).

3. Podolyak A. G., Valetov V. V., Karpenko A. F. Scientific aspects of agricultural production in post-Chernobyl conditions. Mozyr, Mozyr State Pedagogical University named after I. P. Shamyakin, 2017. 242 p. (in Russian).

4. Aleksakhin R. M., Korneev N. A. Agricultural radiology. Moscow, Ekologiya Publ., 1991. 398 p. (in Russian).

5. Gubareva O. S., Isamov N. N., Tsygvintsev P. N. New ferrocene-based forage additives for reducing 137Cs content in cow milk. Radiatsiya i risk [Radiation and risk], 2015, vol. 24, no. 4, pp. 35–42 (in Russian).

6. Aleksakhin R. M., Vasil’ev A. V., Dikarev V. G., Egorova V. A. Agricultural radioecology. Moscow, Ekologiya Publ., 1992. 397 p. (in Russian).

7. Gubareva O. S., Isamov N. N., Tsygvintsev P. N., Ryasnaya E. I., Aleshkina E. N. Radiological effectiveness of the use of prussian blue in combination with mixed cattle feed in livestock farms in the south-west rayons of the Bryansk oblast. Radiatsiya i risk [Radiation and risk], 2017, vol. 26, no. 1, pp. 89–99 (in Russian).

8. Tomson A. E., Sokolova T. V., Navosha Yu. Yu., Tsaryuk T. Ya., Sosnovskaya N. E., Bulgakova N. A., Pekhtereva V. S., Falyushina I. P., Tsarenok A. A. Compositional enterosorbent on the base of peat activated coal. Prirodopol’zovanie [Nature management], 2018, no. 2, pp. 128–133 (in Russian).

9. Karpenko A. F., Tsarenok A. A., Makarovets I. V., Antipenko O. A. On ferrocyanide-containing sorbents. Radiobiologiya: sovremennye problemy: materialy mezhdunarodnoi nauchnoi konferentsii (26–27 sentyabrya 2019 goda, Gomel’) [Radiobiology: modern problems: materials of the international scientific conference (September 26–27, 2019, Gomel)]. Gomel, 2019, pp. 86–92 (in Russian).

10. Karpenko A. F. Ecological and economic problems of agricultural production in the Gomel region after the Chernobyl disaster. Bryansk, Del’ta Publ., 2012. 258 p. (in Russian).

11. Zhuchenko Yu. M., Averin V. S., Firsakova S. K., Grebenshchikova N. V., Osipenko A. N., Teshkovskii A. V., Timofeev A. S., Timofeev S. F., Drobyshevskaya V. V., Tsygvintsev P. N., Avtushko M. I. Problems of radiation rehabilitation of contaminated territories. Gomel, Institute of Radiology Publ., 2004. 121 p. (in Russian).