Efficiency of influence of prebiotic feed additive on productivity, antioxidant protection and immunological status of hens

Agrarian-And-Food Innovations Pub Date : 2023-10-30 DOI:10.31208/2618-7353-2023-21-42-52

Z. Komarova, N.V. Kalinina, M. Slozhenkina, E.A. Struk

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Abstract

Purpose. The study of the productive traits of chickens when fed with a prebiotic supplement that stimulates the antioxidant and immunological defenses of the body Materials and Methods. The studies were carried out in certified laboratories. The resulting digital material was processed using the statistical package Microsoft Excel, which provides verification of the reliability of the data using the Student's criterion. Results. It has been established that the introduction of the feed additive "LactuSuper" into the diet of laying hens of the Hisex Brown cross dramatically increases their productivity by 85 eggs in 10 weeks of the experiment, or by 1.2 eggs per positive laying hen, the egg-laying intensity – by 1.74%, feed savings – by 0.6 g per day per head, obtaining a hatching egg yield of 4% (97% compared to 93% of the control group). The balance of the feed additive "LactuSuper" with biologically active absorbed absorbable carotenoids in the yolk of the incubation eggs of the experimental group was 23.36% (P≤0.001), which was 16.9 µg/g in absolute values. Incubation of eggs showed a high hatch of chickens in both groups (82.44 and 85.27%), but in the experimental group, the excess in this indicator was 2.83%. High rates of production and quality of hatching eggs in the experimental group, apparently, are provided by the activation of metabolism in the body of chickens, as a result of feeding them the studied additive. Due to the antioxidant properties of the tested feed additive the activity of superoxide dismutase (SOD) increased by 11.22% (P≤0.01), glutathione peroxidase (GPO) – by 3.02% (P≤0.05), ceruloplasmin (CP) – by 16.58% (P≤0.01), total antioxidants (TOA) by 26.97% (P≤0.01), and malondialdehyde (MDA) activity decreased by 14.15% (P≤0,01). The level of T-lymphocytes responsible for cellular immunity increased by 12.61% (P≤0.01), and the content of B-lymphocytes characterizing humoral resistance increased by 6.83% (P≤0.05) relative to the control. An increase in the level of classical antibodies was recorded in the experimental group. Thus, the content of IgA and IgG increased by 17.26 (P≤0.01) and 7.62% (P≤0.05) compared with the control. The presence of IgM also exceeded the control values in the experimental group by 7.79% (P≤0.05). Conclusion. Thus, it was found that the feed additive "LactuSuper" developed by us contributed to the increase in the egg production of the parent flock and the quality of hatching eggs. The active substances of the prebiotic supplement ensured a decrease in the level of free radical lipid oxidation, which had a positive effect on the formation of the body's antioxidant defense, strengthening cellular and humoral immunity.

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益生素饲料添加剂对母鸡生产率、抗氧化保护和免疫状态的影响效率

目的研究用益生元补充剂喂养的鸡的生产性状，这种益生元补充剂可刺激机体的抗氧化和免疫防御能力材料与方法。研究在经过认证的实验室中进行。使用 Microsoft Excel 统计软件包对所得数字材料进行处理，并使用学生标准对数据的可靠性进行验证。研究结果实验证明，在 Hisex 棕色杂交蛋鸡的日粮中添加 "LactuSuper "饲料添加剂可显著提高其生产率，在 10 周的实验中可增加 85 枚鸡蛋，或每只正产蛋鸡增加 1.2 枚鸡蛋，产蛋强度 - 增加 1.74%，节省饲料 - 每头每天 0.6 克，孵化产蛋率达到 4%（97%，而对照组为 93%）。在实验组孵化蛋的蛋黄中，饲料添加剂 "LactuSuper "与生物活性可吸收类胡萝卜素的平衡为 23.36%（P≤0.001），绝对值为 16.9 µg/g。孵化蛋显示，两组鸡的孵化率都很高（82.44% 和 85.27%），但实验组的这一指标超标 2.83%。显然，实验组的鸡蛋产量和孵化质量都很高，这是因为给鸡喂食了所研究的添加剂后，鸡体内的新陈代谢被激活了。由于试验饲料添加剂的抗氧化特性，超氧化物歧化酶（SOD）的活性提高了 11.22%（P≤0.01），谷胱甘肽过氧化物酶（GPO）提高了 3.02%（P≤0.05）。02% (P≤0.05)，脑磷脂酶 (CP) - 增加了 16.58% (P≤0.01)，总抗氧化剂 (TOA) 增加了 26.97% (P≤0.01)，丙二醛 (MDA) 活性降低了 14.15% (P≤0.01)。与对照组相比，负责细胞免疫的 T 淋巴细胞含量增加了 12.61%（P≤0.01），而负责体液抵抗的 B 淋巴细胞含量增加了 6.83%（P≤0.05）。实验组的经典抗体水平有所增加。因此，与对照组相比，IgA 和 IgG 的含量分别增加了 17.26% （P≤0.01）和 7.62% （P≤0.05）。实验组的 IgM 含量也比对照组高出 7.79%（P≤0.05）。结论由此发现，我们开发的饲料添加剂 "LactuSuper "有助于提高父母代鸡群的产蛋量和孵化鸡蛋的质量。益生元补充剂的活性物质确保了自由基脂质氧化水平的降低，这对机体抗氧化防御的形成、细胞免疫和体液免疫的增强产生了积极影响。

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