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首页> 外文期刊>Aquaculture Reports >The dietary administration of miswak leaf powder promotes performance, antioxidant, immune activity, and resistance against infectious diseases on Nile tilapia (Oreochromis niloticus)
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The dietary administration of miswak leaf powder promotes performance, antioxidant, immune activity, and resistance against infectious diseases on Nile tilapia (Oreochromis niloticus)

机译：Miswak叶粉的膳食施用促进了尼罗罗非鱼（Oreochromis niloticus）的性能，抗氧化剂，免疫活性和对传染病的抗性

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The feeding experiment's main purpose was to estimate the influence of fortification of tilapia diets with miswak leaf powder (MLP) on performance, digestive enzyme activity, chemical body composition, antioxidant status, immune response, and resistance against bacterial and fungal infections. O. niloticus fingerlings (15.22?±?0.06?g) were fed four formulated diets fortified with MLP at 0, 2.5, 5, and 10?g?kg ?1 diet for 56 days. The fish were injected with Aeromonas hydrophila for 14 days at the end of the feeding trial, and then the mortality percentage was recorded daily in all treated groups. The obtained results showed that dietary administration of MLP at 2.5?g?kg ?1 recorded significantly higher values in all growth, feed utilization, and feed efficiency parameters. The digestive enzyme activity was significantly (P??0.01) higher in fish fed a low level of MLP (2.5 or 5?g?kg ?1 ) when compared with the control group. Furthermore, the higher concentration of MLP (10?g?kg ?1 ) significantly reduced the mortality rate induced by Aeromonas hydrophila infection, increased crude protein percentage in fish body and represented highly in vitro antibacterial and antifungal efficiency. Based on the findings of the challenge tests against A. hydrophilia , higher survival was found in infected fish, explaining that MLP at high level of 10?g kg can be used to resist the outbreak of the A. hydophilia disease in tilapia. In conclusion, our obtained data showed that applied MLP in tilapia diets could promote performance, feed efficiency, antioxidant status, immune activity, and enhanced resistance of O. niloticus against infections.
机译：饲料实验的主要目的是估算罗非鱼饮食的强化对缺陷叶粉（MLP）对性能，消化酶活性，化学物体组成，抗氧化状态，免疫应答以及抗细菌和真菌感染的影响。 o. niloticus percientlings（15.22？±0.06μl）被喂食四种配方的饮食，该饮食强化在0,2.5,5和10？g？1 kg？1次饮食56天。在饲养试验结束时将鱼注射14天，然后在所有治疗组中每天记录死亡率百分比。所得结果表明，在2.5Ω·克·kg≤1的膳食施用MLP？1在所有生长，饲料利用率和饲料效率参数中记录显着更高的值。与对照组相比，消化酶活性显着（p≤≤0.01）喂养低水平的MLP（2.5或5μl≤kg≤1）。此外，较高浓度的MLP（10？G？kg≤1）显着降低了Aeromonas疏水菌感染诱导的死亡率，增加了鱼类中的粗蛋白质百分比，并且具有高度体外抗菌和抗真菌效率。基于对A.患有患者的挑战测试的调查结果，在感染的鱼中发现了更高的存活，解释了高水平10？G kg的MLP可用于抵抗罗非鱼A.河豚病的爆发。总之，我们获得的数据显示，罗非鱼饮食中的施用MLP可以促进性能，饲料效率，抗氧化状态，免疫活性和增强O. niLoticus免受感染的抗性。

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