Registration Number
0226U000876,
(0121U100426)
, R & D reports
Title
Research of фізіолого-біохімічних mechanisms of adjusting of processes of metabolism and increase of bioavailability of nutritives is for the use of alternative forage resources in feeding of bird
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Дослідження фізіолого-біохімічних механізмів регуляції процесів метаболізму та підвищення біодоступності поживних речовин за використання альтернативних кормових ресурсів в годівлі птиці
Head
Havilei Olena V., Кандидат сільськогосподарських наук
Registration Date
17-01-2026
Organization
State Poultry Research Station of Livestock Farming Institute of the National Academy of Agrarian Sciences of Ukraine
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Determining the biological value of alternative feed additives and feeds prepared using new components, their suitability for feeding poultry, the impact on the physiological state, nutrient uptake, economic and economic indicators.
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Object of the study: the parental stock and replacement pullets of Birkivska Barvysta egg-type chicken breed.
Purpose: to assess the biological value of a phytogenic feed additive derived from walnut (Juglans regia) leaves and to evaluate its effects on the physiological condition, productivity, and economic efficiency of poultry keeping.
Methods: zootechnical, biochemical, physiological, and statistical.
The study established that walnut leaves are rich in biologically active compounds (flavonoids, phenolic compounds, tannins, vitamins), which provide the feed additive with antioxidant, antimicrobial, and immunostimulatory properties. The mechanism of action of the additive involves reducing oxidative stress, enhancing immune defense, and normalizing metabolic processes in chickens due to its complex of polyphenolic compounds.
The optimal inclusion rate of ground dry walnut leaves in the compound feed was determined as 1% of feed weight, which did not negatively affect the birds’ physiological state and contributed to improved performance.
The use of the additive increased laying intensity by 4%, average egg production per hen by 6.8%, flock survival up to 98.9%, and improved feed conversion by 6.7%.
Economic evaluation showed a 3.82% reduction in the cost price of hatching eggs and an additional economic effect of 4,470 UAH when used in adult hens. In replacement pullets, the cost of rearing was reduced by 3.85%, providing an additional economic benefit of 2,900 UAH due to the additive.
These results support the feasibility of using this phytogenic additive in the management system of the parental chicken stock. The inclusion of 1% walnut leaves in feed is an ecologically safe, biologically efficient, and economically viable approach to improving poultry productivity and survival.
Product Description
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Havilei Olena V.
Svitlana M. Pankova
Ihor Ionov
Liudmyla L. Poliakova
Hanna V. Chorna
Nataliia S. Bahmut
Yuliia O. Koval
Oleksandr Y. Rudenko
Valentyna P. Bondarenko
Tetiana M. Kryvoruchko
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2026-01-17
