Use of sorption premixes in fish farming as a prevention of nutritional toxicosis

Abstract

Climate change is a fact with serious implications that extend to pollution, seafood safety and global food security.The studies were carried out in 2022, on the basis of the FGBOU HE SPbGUVM. Guppy aquarium fish were taken as objects of exploratory research. In the amount of 45 pieces. All objects were placed in the same habitat conditions: 3 aquariums of 10 liters each, males were selected, 10 pcs each. Three groups were created: the first group was given acetate as a lead toxicant, at the rate of 1g/10l, which is 10 times higher than the MPC, which is 0.1g/l according to existing regulations. The second group was given a toxicant in an equivalent dose and a sorption complex (vermiculite, perlite and polyphepan) at the rate of 4% of the daily norm, the control group remained free of toxicants and premix.The toxicant was given once, the sorption complex for a month, crushed and mixed with the feed beforehand. Feeding was carried out with specialized Tetra food. After 30 days. guppy tissue and organ samples were sent to the laboratory of the Educational and Research Center for the Expertise of Food Products and Feed for Animals (FGBOU VO SPbGUVM, St. Petersburg). A study on the detection of lead in tissues and organs was carried out by atomic absorption spectrometry M 04-64-2017, using an atomic absorption spectrometer with electrical atomization MGA-915.According to our exploratory studies, the premix dose of 4% allowed to reduce the amount of toxins by almost three times under equal conditions. Thus, this complex of sorbents can be used as a prevention of altimentary toxicosis with lead acetate in aquarium fish, and also that a premix of sorbents can be recommended for use in fisheries after industrial testing.