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Pomegranate peel and moringa-based diets enhanced biochemical and immune parameters of Nile tilapia against bacterial infection by Aeromonas hydrophila.
Microbial Pathogenesis ( IF 3.8 ) Pub Date : 2020-04-21 , DOI: 10.1016/j.micpath.2020.104202
Walid Monir 1 , Mohamed Ali Abdel-Rahman 1 , Saad El-Din Hassan 1 , El Sayed Mansour 2 , Somayah M M Awad 3
Affiliation  

We previously reported that Aeromonas hydrophila exhibited the highest prevalence rate amongst 182 bacterial strains isolated from naturally diseased Nile tilapia (Oreochromis niloticus) collected from El-Abassa Fish Farm, Egypt (Hassan et al., Egypt. J. Aquac., 10, 23-43, 2020). The overuse of antibiotics for controlling diseases has led to acquired antibiotics resistance of aquatic bacteria, besides the developments of human, aquatic animal and environmental risks arising from residual antibiotics. Therefore, the evaluation of safe alternative phytotherapies is of great importance. This study was conducted to evaluate and compare growth performance and immune potentiating activities of moringa (Moringa oleifera) leaves extract (Moringa LE) and pomegranate (Punica granatum) peel extract (Pomegranate PE) on Nile tilapia against infection with a pathogenic bacterium, Aeromonas hydrophila. A total of 150 Oreochromis niloticus were randomly divided into 5 groups to be fed at 3% of body weight with isonitrogenous/isoenergetic diets supplemented with Moringa LE at 0.15 and 0.25% kg-1 or Pomegranate PE at of 0.3 and 0.5% kg-1, separately. Growth performance was significantly affected by Moringa LE as compared with the control group without supplementation of plant extract, while Pomegranate PE levels did not affect growth performance. Maximum average daily gains, specific growth rate, albumin, globulin, total protein, A/G ratio, alanine amino transaminase (ALT), aspartate amino transaminase (AST), cholesterol, triglyceride, creatinine, urea, and lysozyme were analyzed. Antioxidant enzymes of catalase and superoxide dismutase were also evaluated in liver tissues. After feeding experiment, the results indicated that the addition of Moringa LE and Pomegranate PE improved lipid profile, liver and kidney functions, immune response towards the emerging bacterial diseases. Besides this, feeding the fishes on diets supplemented with Moringa LE at concentration 0.25% kg-1 showed the best growth performance, and improved immunity. Moreover, it exhibited the highest protection against bacterial infection with Aeromonas hydrophila achieving the lowest mortality rate of 10% as compared to 80% of mortality rate at the control group.

中文翻译:

石榴皮和辣木为基础的饮食提高了尼罗罗非鱼对嗜水气单胞菌细菌感染的生化和免疫参数。

我们之前曾报道过,嗜水气单胞菌在从埃及El-Abassa鱼场收集的182种自然感染的尼罗罗非鱼(Oreochromis niloticus)分离的细菌中显示最高的发生率(Hassan等,Egypt。J. Aquac。,10,23 -43,2020)。过量使用抗生素来控制疾病,除了对人类,水生动物的发展以及残留抗生素引起的环境风险外,还导致了对水生细菌的抗生素耐药性。因此,评价安全的替代植物疗法非常重要。这项研究旨在评估和比较辣木(Moringa oleifera)叶片提取物(Moringa LE)和石榴(Punica granatum)果皮提取物(Pomegranate PE)对尼罗罗非鱼的致病性细菌亲水性感染的生长性能和免疫增强活性。 。将总共​​150只尼罗罗非鱼(Oreochromis niloticus)随机分为5组,以3%的体重喂以补充0.15和0.25%kg-1的辣木LE或0.3和0.5%kg-1的石榴PE的等氮/等能饮食,分别。与不添加植物提取物的对照组相比,辣木LE对生长性能有显着影响,而石榴的PE水平不影响生长性能。最大平均日增重,比生长速率,白蛋白,球蛋白,总蛋白,A / G比,分析了丙氨酸氨基转氨酶(ALT),天冬氨酸氨基转氨酶(AST),胆固醇,甘油三酸酯,肌酐,尿素和溶菌酶。还评估了肝组织中过氧化氢酶和超氧化物歧化酶的抗氧化酶。进食实验后,结果表明辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以0.25%kg-1的浓度添加了辣木LE的饲料喂养鱼类,表现出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护作用,与对照组的80%的死亡率相比,死亡率最低,仅为10%。分析了天冬氨酸氨基转氨酶(AST),胆固醇,甘油三酸酯,肌酐,尿素和溶菌酶。过氧化氢酶和超氧化物歧化酶的抗氧化酶也在肝脏组织中进行了评估。进食实验后,结果表明辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以浓度为0.25%kg-1的浓度添加了辣木LE的饲料喂养鱼类,表现出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护,与对照组的80%的死亡率相比,死亡率最低,仅为10%。分析了天冬氨酸氨基转氨酶(AST),胆固醇,甘油三酸酯,肌酐,尿素和溶菌酶。还评估了肝组织中过氧化氢酶和超氧化物歧化酶的抗氧化酶。经过喂养实验,结果表明辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以0.25%kg-1的浓度添加了辣木LE的饲料喂养鱼类,表现出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护作用,与对照组的80%的死亡率相比,死亡率最低,仅为10%。还评估了肝组织中过氧化氢酶和超氧化物歧化酶的抗氧化酶。经过喂养实验,结果表明辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以0.25%kg-1的浓度添加了辣木LE的饲料喂养鱼类,表现出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护,与对照组的80%的死亡率相比,死亡率最低,仅为10%。还评估了肝组织中的过氧化氢酶和超氧化物歧化酶的抗氧化酶。进食实验后,结果表明辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以0.25%kg-1的浓度添加了辣木LE的饲料喂养鱼类,表现出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护作用,与对照组的80%的死亡率相比,死亡率最低,仅为10%。结果表明,辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以0.25%kg-1的浓度添加了辣木LE的饲料喂养鱼类,表现出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护作用,与对照组的80%的死亡率相比,死亡率最低,仅为10%。结果表明,辣木LE和石榴PE的添加改善了脂质分布,肝和肾功能以及对新兴细菌疾病的免疫反应。除此之外,以0.25%kg-1的浓度添加了辣木LE的饲料喂鱼显示出最佳的生长性能,并提高了免疫力。而且,它显示出最高的抵抗嗜水气单胞菌细菌感染的保护作用,与对照组的80%的死亡率相比,死亡率最低,仅为10%。
更新日期:2020-04-22
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