Scientific work
For many years, the department's staff, under the leadership of the founder of the scientific school, Professor Pavlo Dmitrovich Pshenichny, has been developing issues of directed cultivation and stimulation of nutritional functions in young farm animals, age-related variability of economically useful traits under the influence of different levels of animal feeding, etc.
Academician Ildus Ibatullovich Ibatullin continued the traditions of the scientific school of Pavlo Dmitrovich Pshenichny, who developed research into issues of standardized animal nutrition, methods of preparing feed for feeding and balancing animal rations for different types of feeding, and increasing the level of feed conversion in animals of different species under the conditions of industrial technology for the production of livestock products.
During the existence of the department, its employees have trained: 26 doctors and 183 candidates of sciences, of which 19 for foreign countries. Citizens of Bulgaria, Poland, Germany, Yugoslavia, Vietnam, Mongolia, the People's Republic of China, Syria, Algeria, and the Arab Republic of Egypt defended their dissertations and completed internships at the department. On the basis of the problematic research laboratory of feed additives established in 1998, 3–5 young scientists are constantly undergoing postgraduate training, who will work at the department and in the scientific laboratory in the future.
The scientists of the department carried out research on 2 topics, including 1 topic commissioned by the Ministry of Education and Science of Ukraine, 1 initiative topic.
By order of the Ministry of Education and Science of Ukraine: 1. “Scientific and practical substantiation of protein nutrition of animals” (state registration number 0122U001640, implementation period 2022-2024). The head of the topic is Professor M.Yu. Sychev.
The department is implementing two initiative themes: 1. “Study of the influence of feed factors on the efficiency of livestock production” (state registration number 0120U103680, implementation period 2020–2024). The theme leader is Professor M.Yu. Sychev.
The most important results by priority research areas.
During the conducted research, it was found that balancing the protein nutritional value of mixed feed for dairy cows with milk productivity at the level of 25 kg is advisable to carry out using undecomposable protein in the rumen by reducing the mass fraction of soybean meal and sunflower meal and introducing 20.5% brewer’s grains, 10.3% bran and 5% wheat grain.
The use of rumen-stable protein sources alternative to soybean meal allows reducing the cost of mixed feed for dairy cows by 10%.
Feeding young rabbits with compound feed containing 40% NDK and 29% KDK at a ratio of 1.4:1 contributes to an increase in live weight by 2.0%, an increase in average daily gains by 3.3% and a decrease in feed costs per unit of gain by 1.3%.
The use of chromium picolinate in the feeding of young rabbits in the form of 0.6–0.8 mg/kg contributes to an increase in live weight by 1.8–2.7%, an increase in average daily gains during the growing period by 3.6–5.2% and an increase in relative gains by 1.8–2.4%.
The peculiarities of the influence of the levels of lysine, methionine, tryptophan, threonine, arginine, valine, glycine in the diets of egg-laying chickens of different production groups and their ratios on productivity, nitrogen and amino acid metabolism, and digestibility of feed nutrients have been established. The need for hens of the parent, industrial herd and replacement young of the egg-laying chickens in essential amino acids and their ratios in diets has been theoretically substantiated and generalized.
The principles of standardizing the content of the indicated amino acids in compound feeds for chickens depending on their level and ratio of individual ones, the age of the bird and its productivity have been improved. The use of new methods of full-fledged feeding of egg-laying chickens allows optimizing the growth and sexual maturation of replacement young, increasing productivity and reducing feed costs per unit of production by 5 to 8% and the cost of egg production by 5 to 10%.
A regression equation has been developed regarding the relationship between different levels of amino acids in the diets of egg-laying hens of various production purposes and productivity, which allows predicting and controlling the amino acid nutrition of poultry depending on the period of its use.
Scientific achievements of the department
6 doctoral and 32 candidate theses have been defended.
23 patents for utility models have been obtained.
Participation in 45 international conferences (Ukraine, Moldova, Poland, Czech Republic).
