This paper discusses the experimental findings on lay-ing quails when their diets were supplemented with iodine and starch mixture. Five groups of 120 comparable quails bred in the Omsk Region were formed; the sex ratio was 1:4. The first group was the control; the birds were fed the main diet without the iodine supplement; the 2nd, 3rd, 4th and 5th groups were trial groups where the main diet was supplemented with iodine (potassium iodide) + starch (1:4) immediately before feeding. The dosages of the tested product in the trial groups were as following (in terms of iodine, mg per 100 g of feed): the 2nd group -0.05; 3rd -0.075; 4th -0.10; 5th -0.125. The experiment lasted for 180 days. Throughout the experiment, the largest number of eggs was obtained in the 3rd trial group -15240 eggs, more by 18.1% than in the control group (P ≥ 0.99). The laying quail day egg production in the 3rd trial group was 25.4 eggs, more by 13.0% than that in the control group. In the 2nd, 3rd, 4th, and 5th trial groups, the average egg weight was less than in the control, respectively, by 4.5; 7.1 and 8.0%. The number of produced eggs in the 3rd trial group was more than in the control group by 17.0% (P ≥ 0.95), and the intensity of egg production -by 10.0%. The feed costs were lower in the trial groups by 0.16-15.57% for the production of 10 eggs; and for the production of 1 kg of eggs in the 3rd and 4th trial groups -by 9.08 and 3.12% than in the control. The profitability in the 3rd trial group made 54.2%; that was by 1.59% higher than in the control group. The optimal dosage of iodine as much as 0.075 mg per 100 g of complete feed was determined which contrib-uted to obtaining a greater economic effect in quail egg production.

Currently, it has been understudied which forms of feed supplements ensure the most positive effect on increasing milk nutritional value and processing properties. In this regard, an experiment was conducted on comparable groups of 90 cows. The animals of the 1st (control) group were fed compound feed concentrate that included the following ingredients: protected fat Megalac (3.1%); a buffering agent sodium bicarbonate (1.4%); protein digestion stimulator Farmatan TM (0.57%); mineral and vitamin premix Rindavit 51 ATG RV (3.6%). The animals of the 2nd (trial) group were given the following feed supplements: protected fat Nutracor (3.0%); a buffering agent Rumenbuffer (0.9%); protein-mineral-vitamin concentrate Cowfit 5 Plus (3.75%); mineral and vitamin premix Cowfit Immuno Fertil (0.75%). In the 2nd (trial) group, the levels of milk components increased as follows: lactose - by 20%; butterfat - by 15%; casein - by 25%; calcium - by 33%; phosphorus - by 53%; copper by 45%, zinc - by 89%; vitamin A - by 67%; vitamin E - by 30%; that was indicative of milk nutritional value increase.

The studies were conducted in 2015 on Large Whitepigs of the breeding farm of the AO “Linevskiy plemzavod” (Altai Region, Smolenskiy District). The research goal was to determine the growth rate and blood biochemical indices of pigs when using LipoKar feed supplement.According to the design of the experiment, the animals of the control group were fed the basic dietonly. In the trial group, the sows received LipoKar feed supplement for 20 days startingfrom the 85th day of pregnancy. Then, the piglets born from them were also fed LipoKar feed supplement during the nursery period for 40 days in a 10 days’ interval. The dosages of the feed supplement were as following: for pregnant sows -2.1 g perhead per day; for young animals -0.8 g per head per day. The following effects of using LipoKar feed supplementwere found in the trial group: increasing piglet live weight from 4.2% to 11.7% (p < 0.001), average daily live weight gains -from 3.4% to 18.6% (p < 0.05); total protein, vitamin A and alkaline re-servein blood serum by 15.5% (p < 0.001), 9.2% (p < 0.05) and 20.9% (p < 0.001), respectively

Currently, it has been understudied which forms of feed supplements ensure the most positive effect onincreasing milk nutritional value and processing properties. In this regard, an experiment was conducted in comparable groups of 90 cows. The animals of the 1st (control) group were fed compound feed concentrate that included the following ingredients: a rumen-protected fatsupplementMegalac (3.1%); a buffering agent -sodium bicarbonate (1.4%); protein digestion stimulator Farmatan TM (0.57%); mineral and vitamin premixRindavit 51 ATG RV (3.6%); the animals of the 2nd (trial) group were giventhe following feed supplements: protected fat Nutracor (3.0%); a buffer-ing agent Rumenbuffer (0.9%); protein-mineral-vitamin concentrate Cowfit 5 Plus (3.75%); mineral and vitamin premix Cowfit Immuno Fertil(0.75%). In the 2nd (trial) group, the levels of milk components increased as follow-ing: lactose -by 20%; butterfat -by 15%; casein -by 25%; calcium -by 33%; phosphorus -by 53%; copper by 45%, zinc -by 89%; vitamin A -by 67%; vitamin E -by 30%; that was indicative of milk nutritional value increase

Reindeer antler breeding in Altai is a promising industry. Dietary meat and antlers, which are used in Oriental medicine, are received from red deer. In this regard, the study of the morphology of red deer and in particular its digestive system is relevant. The digestive system provides the body with nutrients and energy. Red deer have a four-chamber stomach. 1 – Rumen is the largest part of the stomach, it is used for hydrolysis of feed. It consists of mucous, muscular and serous membranes. The mucous membrane has papillae. 2 – The reticulum is a small part, there are cells on the inner surface, it performs the function of sorting the feed. 3 The omasum separates the liquid fraction of the feed from the dense fraction, has inside flat outgrowths. 4 In the abomasum, the same processes occur as in the single-chambered stomach. The stomach doesn’t develop evenly. Stomach chambers grow most intensively up to 6 months and then up to 2 years. Then their growth energy decreases, the growth is doubtful.