THE USE OF QUERCUS CORTEX EXTRACT AND LACTOBIFADOL IN THE DIET: FODDER FLOW AND DIGESTIBILITY, GROWTH PERFORMANCE OF BROILERS

The objective of this study is to assess the efficacy of a combination of phytobiotic (Quercus cortex) and probiotic preparations (lactobifadol) as feed additives in the growth of broiler chickens. The studies were conducted in accordance with accepted zootechnical methods in poultry farming, under controlled conditions in a vivarium and the Center for Collective Use FRC BST RAS (Orenburg, Russia). The scientific novelty of this study lies in the fact that the primary factor contributing to the enhancement of poultry productivity and the production of quality products is the exclusion of antibacterial drugs from the feed ration. The use of these substances can result in both beneficial and adverse effects. For instance, they may cause toxic or allergic reactions, and the ingestion of antibiotic residues through the consumption of broiler meat is also a possibility. Currently, there is a great deal of scientific and practical interest in the identification and study of alternative feed additives, as well as their combined effects. The results demonstrated that animals receiving supplements consumed less feed and exhibited higher growth rates compared to the control group. The live weight gains of chickens receiving Quercus cortex extract and lactobifidol separately increased by 9.54 and 6.75%, respectively, while feed consumption decreased by 5.68 and 7.01%, respectively. The maximum reliable gain in live weight of broilers (16.9% (p≤0.01)) was observed on the background of combined feeding of Quercus cortex extract and lactobifadol, on the background of reduced feed consumption by 5.68 and 7.01%, respectively.

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