Effect of phytobiotics on quail egg productivity

Phytobiotics, which are feed additives of plant origin, known for their antimicrobial, antioxidant, immunomodulatory and stimulating properties, have become a promising natural alternative to synthetic antibiotics. The aim of the work was to investigate the egg quality of quails using a feed phytobiotic additive. The experiment lasted 180 days. The quails of the control group were fed the basic diet - a complete combined feed, and the experimental groups were additionally given a phytobiotic supplement in different doses to the basic diet. The use of a phytobiotic additive in quail feeding increases the gross egg collection in the 2nd group by 1.7 % (P < 0.01), in the 3rd group by 5.0 % (P < 0.001) and in the 4th by 6.7 % (P < 0.001), against the control. Under the influence of the herbal supplement, the laying capacity per initial laying hen in the 3rd group increases by 5.0 % (P < 0.05) and in the 4th by 6.8 % (P < 0.01) and per average laying hen in the 4th group by 4.5 % (P < 0.05) and the intensity of laying in the 4th group by 3.6 % (P < 0.05) relative to control analogues The use of a feed additive increases egg mass in quails of the 3rd and 4th groups by 5.0% and 5.9 % (P < 0.01), protein by 4.6 % and 6.3 % (P < 0.05) and yolk by 8.3 % and 11.1 % (P < 0.001) compared to the control values. Feeding quails with a phytobiotic supplement increases the large egg diameter in the 3rd group by 3.0 % (P < 0.05) and in the 4th group by 5.4 % (P < 0.001) and the small egg diameter in the 2nd group by 3.1 % (P < 0.01), in the 3rd by 7.4 % (P < 0.001) and in the 4th by 9.4 % (P < 0.001) and the egg shape index in the 3rd group by 3.3 % and in the 4th by 2.9 %, against the control data. In birds that consumed phytobiotics of the 2nd, 3rd, and 4th groups, the relative weight of the yolk increased by 0.9 (P < 0.01), 1.0 (P < 0.001), and 1.5 %, respectively (P < 0.001), and the relative weight of the shell by 1.2, 0.7 and 1.6 % (P < 0.001), respectively, relative to the control. It was established that the consumption of a vegetable supplement increases the height of the dense layer of protein in the 3rd group by 10.8 % (P < 0.05) and in the 4th by 13.5 % (P < 0.01), the small diameter of the dense layer protein in the 3rd group by 13.3 % (P < 0.001) and in the 4th group by 15.5 % (P < 0.001), and the protein index in the 3rd and 4th groups, quail is larger by 25.0 % (P < 0.001) compared to the control group. Additional use of phytobiotics in quail feeding increases the height of the yolk in the 4th group by 11.3 % and the large diameter of the yolk in the 3rd group by 3.8 % (P < 0.05), and in the 4th group by 7, 6 % (P < 0.001), relative to the control.