The article presents the results of the analysis and substantiation of changes in the mineral composition of the blood serum of cows of different technological groups and physiological state. It was revealed that the level of zinc in the blood of all studied animals was lower than the normative indicator. Cows with relatively high productivity (8,000 kg of milk and above) also had a lack of potassium, and cows of the 3rd lactation and older had a lack of magnesium. In addition, an increased content of phosphorus and chlorides in the blood serum of almost all studied animals was revealed.
Кареліна О. Особливості використання технології RFID в інформаційному забезпеченні промислових підприємств [Електронний ресурс] / Олена Кареліна // Соціальноекономічні проблеми і держава.-2019.-Вип. 1 (20).-С. 46-51.-Режим доступу до журн.
The article presents studies on the dependence of the crystallization rate of natural honey on the moisture weight ratio, the activity of the invertase enzyme. Based on the results presented, preliminary conclusions can be drawn, which indicate that the higher the activity of the invertase enzyme, the sooner the crystallization of the honey begins.
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