Adil Sheikh, Aldhalmi Ahmed K, Wani Manzoor A, Baba Irfan A, Sheikh I U, Abd El-Hack Mohamed E, Aljahdali Nesreen, Albaqami Najah M, Abuljadayel Dalia A
Division of Livestock Production and Management, Faculty of Veterinary Sciences & Animal Husbandry, SKUAST-K, Srinagar, India.
College of Pharmacy, Al-Mustaqbal University, Babylon, Iraq.
Transl Anim Sci. 2024 Sep 14;8:txae134. doi: 10.1093/tas/txae134. eCollection 2024.
This study explores the impact of chitosan nanoparticles () on the performance, nutrient digestibility, blood biochemical, immunity, microbial load, carcass traits, and meat attributes of broilers. A total of 200 7-d-old Cobb chicks were distributed to 4 groups, each replicated 5 times, with 10 birds in each replicate. The experimental diets were as follows: First group was fed a basal diet only (control); 2nd, 3rd, and 4th groups received a basal diet supplemented with 0.2, 0.3, and 0.4 g CNP/kg of feed, respectively. Results showed that the body weight () and body weight gain significantly improved ( < 0.05) in the birds belonging to the 0.4 CNP group compared to the other groups. The best feed efficiency (feed conversion ratio []) was found in the group supplemented with a 0.4-g CNP/kg diet. The digestibility coefficients for dry matter and crude protein were significantly higher, and ether extract was significantly lower in the 0.4 g CNP/kg group than in other groups ( < 0.05). Broiler birds of the 0.4 CNP group had significantly ( < 0.05) reduced serum cholesterol, AST, and ALT levels. The humoral immunity (increased serum IgG and IgM levels) tended to improve in birds fed 0.3 and 0.4 g CNP/kg of feed. Compared to the control, total bacterial load and coliform count decreased significantly ( < 0.05) by supplementing 0.4 g CNP in the diet. The dressing weight, breast weight, and abdominal fat % were altered in birds receiving dietary 0.4 g CNP/kg. The treatment with CNP at 0.4 g/kg feed enhanced the broiler meat quality by increasing the values for water holding capacity, ABTS [2, 2'-azinobis (3-ethylbenzothiazoline-6-sulfonic acid)], DPPH (2,2-diphenyl-1-picrylhydrazyl) while reducing the thiobarbituric acid reactive substances (TBARS) value. Based on the results above, it could be concluded that CNP supplementation at 0.4 g/kg is recommended as a beneficial feed additive for broiler chickens.
本研究探讨壳聚糖纳米颗粒（）对肉鸡生产性能、养分消化率、血液生化指标、免疫力、微生物载量、胴体性状和肉品质的影响。总共200只7日龄的科宝肉鸡被分为4组，每组重复5次，每个重复中有10只鸡。实验日粮如下：第一组仅饲喂基础日粮（对照组）；第二、第三和第四组分别在基础日粮中添加0.2、0.3和0.4克壳聚糖纳米颗粒/千克饲料。结果表明，与其他组相比，0.4克壳聚糖纳米颗粒组的肉鸡体重（）和体重增加显著提高（ < 0.05）。在添加0.4克壳聚糖纳米颗粒/千克日粮的组中发现了最佳饲料效率（饲料转化率[]）。0.4克壳聚糖纳米颗粒/千克组的干物质和粗蛋白消化率系数显著更高，而乙醚提取物显著低于其他组（ < 0.05）。0.4克壳聚糖纳米颗粒组的肉鸡血清胆固醇、谷草转氨酶和谷丙转氨酶水平显著降低（ < 0.05）。饲喂0.3和0.4克壳聚糖纳米颗粒/千克饲料的肉鸡体液免疫（血清IgG和IgM水平升高）有改善趋势。与对照组相比，日粮中添加0.4克壳聚糖纳米颗粒可使总细菌载量和大肠菌群数显著降低（ < 0.05）。接受0.4克壳聚糖纳米颗粒/千克日粮的肉鸡的屠宰体重、胸肉重和腹脂率发生了变化。在饲料中添加0.4克/千克壳聚糖纳米颗粒可提高肉鸡的肉品质，提高其持水能力、ABTS[2, 2'-偶氮双（3-乙基苯并噻唑啉-6-磺酸）]、DPPH（2,2-二苯基-1-苦基肼）的值，同时降低硫代巴比妥酸反应物质（TBARS）值。基于以上结果，可以得出结论，建议在肉鸡饲料中添加0.4克/千克壳聚糖纳米颗粒作为有益的饲料添加剂。
