This article describes the results ofthe research on determination of activity and sorption capacity of modified zeolites. Activation processes of sorbents were compared including thermal dehydration and ion-plasma treatment of zeolites. Mineralogical composition of investigated zeolites as well as the results of ion-plasma treatment on the structure of natural zeolites are presented. The obtained results have shown high effectiveness of ion-plasma treatmentof sorbents compared with thermal treatment method.

Abstract. The purpose of the study is to determine the effect of zeolite honguruu on the growth and development, digestibility and metabolism of geese in the conditions of Yakutia. During the experiment, research methods generally accepted in poultry farming were used. Live weight – by weighing birds, digestibility and metabolism according to the method of VIZH, VNITIP. The scientific novelty of the research was to find the possibility of involving natural zeolite in the feed ration of young goose young in the conditions of Yakutia. For carrying out the experiments, we formed 3 groups of geese of 20 animals in each analogue method. Therefore, we determined the effect of zeolite on growth, development, physiological state, and digestibility of nutrients. The purpose of the research is to identify the degree of safety when using zeolite in poultry farming and to obtain an environmentally friendly product for human nutrition. The use of zeolite contributed to an increase in gross increase in live weight by 14.13 % and 19.22 %. So, the supplement contributed to an increase in average daily growth during all periods of cultivation: in 60–70 days – 7.85 % and 15.24 %; in 70–80 days – by 21.73 % and 28.30 %, in 80–90 days – by 13.61 % and 15.76 %. During the experiment, the control group of geese accounted less than the experimental groups of birds – 14.14 % and 19.22 %. A physiological experiment was conducted to determine the effect of zeolite honurin on metabolism. It was found that the additive contributes to better digestion of nutrients in terms of dry matter by 0.9 % and 1.58 %, organic matter by 0.83 % and 1.38 %, protein by 0.64 % and 0.92 %, fat by 0.84 % and 1.58 %, fiber by 0.33 % and 2.21 %, and nitrogen-free extractives by 0.96 % and 1.42 %. During the experiment, it was found that the nitrogen balance in all geese was positive but had differences in the degree of deposition in the body. So the experimental geese of the experimental groups exceeded their peers from the control group by 3.47 % and 5.56 %, respectively. Thus, the use of zeolite zeolite is positive for the growth and development, digestibility and metabolism of geese.

The article presents the results of a study to determine the effectiveness of non-traditional feed additives on the milk productivity of goats in the conditions of Yakutia. Research into 3 groups of lactating goats divided into control and two experimental groups. In the study of animal diets, a deficiency was found for some elements, such as copper, iodine and cobalt. With the inclusion of non-traditional feed additives in the diets of goats, it was possible to increase the average daily milk yield by 13.38 % and 23.57 % (P>0.95), milk yield per experiment by 13.38 and 23.57 % (P>0.95). The qualitative composition of milk improved, fat increased by 0.06% and 0.09%, milk protein increased by 0.02% and 0.04%. Analysis of the data on milk productivity of experimental goats that the inclusion of non-traditional feed additives in the diets of animals shows an increase in milk yield and milk quality (an increase in the level of milk fat and protein). At the beginning and at the end of the experiment, the clinical parameters of the organism of the animals were studied. It was found that the inclusion of non-traditional feed additives in the ration of lactating goats did not have a negative effect. All clinical indicators of the experimental animals did not go beyond the norm. Thus, the use of non-traditional feed additives in the feeding of lactating goats improves the indicators of milk productivity, does not affect the clinical indicators of the organism. In this regard, the use of non-traditional feed additives in feeding lactating goats under conditions Yakutia is promising and has practical significance.