ANALYSIS OF THE CATIONIC-ANIONIC COMPOSITION OF FEED

When compiling diets for productive animals, one of the indicators taken into account is the cationanion balance, which is calculated based on the content of sodium and potassium cations and sulfate and chloride anions. The cationic-anionic composition of feed is very diverse. The lack or excess of one or another cation or anion in feed can lead to disruption of metabolic processes and various diseases of non-infectious etiology.

The aim of the work was to quantify and analyze the cationanion composition of feed for productive animals by capillary electrophoresis.

The research was carried out in the conditions of the educational and research center for the examination of food and animal feed of the St. Petersburg State University of Veterinary Medicine. 76 samples of various feeds for productive animals were used as research materials: 19 samples of grass flour, cake, mixed feeds for cattle.

The study of the cationic composition of the studied feed samples was carried out, guided by the methodology M 04-65-2010 «Feed, compound feed and raw materials for their production. The method of measuring the mass fraction of ammonium, potassium, sodium, magnesium and calcium cations by capillary electrophoresis using the capillary electrophoresis system «Kapel», and anionic composition – according to the method M 04 -73-2011 «Feed, compound feed and raw materials for their production. The method of measuring the mass fraction of water-soluble forms of chloride, sulfate, nitrate and phosphate ions by capillary electrophoresis using the capillary electrophoresis system «Kapel» (GC «LUMEX»).

Thus, analyzing the results obtained, it was found that in all samples of feed for productive animals, the mass fraction of cations and anions varied depending on the type of cation or anion and feed.

Determination of the cationic-anionic composition of feed is a necessary condition for the formation of a full-fledged diet that provides the body of productive animals with nutrients, which is especially important in modern conditions of intensification of animal husbandry and agricultural development.

1. Архипов, А. В. О некоторых актуальных аспектах минерального питания животных / А. В. Архипов // Ветеринария, зоотехния и биотехнология. – 2015. – № 3. – С. 38-48. – EDN TNUTEJ.

2. ГОСТ 13496.0-2016 «Комбикорма, комбикормовое сырье. Методы отбора проб (с Поправкой)» [Электронный ресурс]. Режим доступа: https://docs.cntd.ru/document/1200140597. Дата обращения: 17.05.2022.

3. К вопросу оценки минерального состава зерновых отрубей / Л. Н. Крикунова, Е. В. Дубинина, М. А. Захаров, И. В. Лазарева // Ползуновский вестник. – 2021. – № 2. – С. 27-35. – DOI: 10.25712/ASTU.2072-8921.2021.02.004. – EDN UBHKFG.

4. Сенько, А. В. Снижение заболеваемости коров в послеотельный период и повышения их продуктивности путем коррекции катионно-анионного баланса рациона в транзитный период / А. В. Сенько, А. В. Яшин // Вопросы нормативно-правового регулирования в ветеринарии. – 2016. – № 1. – С. 100-103. – EDN WAIYEL.

5. Сенько, А. В. Способы регулирования катионно-анионного баланса организма коров / А. В. Сенько // Международный вестник ветеринарии. – 2014. – № 4. – С. 25-28. – EDN TCUWUV.