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The complete feeding provides animals with essential nutrients and promotes their high productivity under the economical feed consumption. The animal ration depends on the species, age, live weight, season and physiological condition. The research was carried out on young chinchillas of grey standard during the period of winter fur formation. Three experimental groups, by 4 animals in each one, were formed from young chinchillas. The determination of chinchillas’ clinical and laboratory indicators was performed on the 1st and 21st day of the experiment.Young chinchillas of the control group received feed according to the basic diet. Young chinchillas of the second group received the feed of the basic diet and the symbiotic drug MikoLad at a dose of 1 g/animal, once a day for 21 days. Young chinchillas of the third group received the feed of the basic diet and the drug at a dose of 3 g/animal per day.The content of calcium, phosphorus, magnesium, sodium, potassium, iron, zinc, copper, cobalt, manganese, selenium and Sulfur in the fur of young chinchillas was determined by atomic emission spectrometry with induced coupled plasma using a spectrophotometer.It has been proved that the drug MikoLad at a dose of 1 g/animal per day during pregnancy and lactation, caused in the fur a higher content of calcium by 1.75 times, phosphorus by 2.90 times, magnesium by 1.70 times, sodium by 1.37 times, potassium by 1.66 times, ferrum by 3.00 times, zinc by 2.38 times, copper by 1.69 times, cobalt by 2.00 times and molybdenum by 1.64 times, compared with young chinchillas obtained from the mothers of the control group. The drug at a dose of 3 g/animal per day caused in the fur a higher content of calcium by 1.75 times, phosphorus by 2.09 times, potassium by 1.52 times, zinc by 1.27 times and copper by 1.15 times.On the 21st day of the experiment it was found that the fur of young chinchillas, having received the drug at a dose of 1 g/animal per day, had a higher content of calcium by 1.25 times, phosphorus by 2.08 times, sodium by 1.51 times, potassium by 1.21 times, iron by 1.56 times, zinc by 1.38 times, copper by 1.45 times, cobalt by 1.22 times and molybdenum by 1.67 times, compared with the fur of young chinchillas of the control group.On the 21st day of the experiment it was found that the fur of young chinchillas, having received the drug at a dose of 3 g/animal per day, had ahigher content of calcium by 1.63 times, phosphorus by 3.62 times, sodium by 2.13 times, potassium by 1.42 times, iron by 1.78 times, zinc by 1.53 times, copper by 1.67 times, cobalt by 1.33 times and molybdenum by 2.00 times, compared with the fur of young chinchillas of the control group.Key words: chinchillas, bacterial preparation, young chinchillas, productivity, feed, content.

PECULIARITIES OF FEED PREPARATION FOR YOUNG CHINCHILLAS OF DIFFERENT AGES