In this study, the effects of olive leaf extract on growth, haematological parameters, immune system and carcass composition in common carp were examined. In this research, 180 common carp (32.26 ± 1.01 g) were randomly distributed to nine fibreglass tanks. The fish were fed a diet with 200 mg/kg olive leaf extract (group 1), 400 mg/kg olive leaf extract (group 2), and basal food (control group) for 75 days. At the end of the experiment, WG, SGR and PER values were significantly higher in the groups fed the diet containing 200 mg/kg of olive leaf extract compared with the control group. Furthermore, FCR and FER values were improved in the groups fed by diets with various levels of olive leaf extract than the control group. The contents of WBCs, lysozyme and NBT activity were significantly increased in the groups fed diets containing olive leaf extract. Cholesterol content was significantly lower in the group fed diet containing olive leaf extract compared with the control group. Also, serum triglyceride and carcass lipid contents were significantly lower in the group fed diet containing 200 mg/kg of olive leaf extract compared with the control group. Total protein, albumin, globulin and calcium contents were significantly higher in the group fed the diet containing 200 mg/kg of olive leaf extract compared with the control group. Our results demonstrated that diet containing 200 mg/kg olive leaf extract were efficient feed additives and has the potential for use in improving the growth performance and health status for this species.

中文翻译：

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橄榄叶提取物（油橄榄）对鲤鱼生长，血液学参数，免疫系统和car体组成的影响

在这项研究中，研究了橄榄叶提取物对鲤鱼生长，血液学参数，免疫系统和car体组成的影响。在这项研究中，将180只鲤鱼（32.26±1.01 g）随机分配到9个玻璃纤维缸中。给鱼喂食200毫克/千克橄榄叶提取物（第1组），400毫克/千克橄榄叶提取物（第2组）和基础食物（对照组），持续75天。实验结束时，饲喂含200 mg / kg橄榄叶提取物的日粮组的WG，SGR和PER值均显着高于对照组。此外，与对照组相比，以不同水平的橄榄叶提取物饮食喂养的组的FCR和FER值均得到改善。白细胞的内容，饲喂含橄榄叶提取物的日粮中的溶菌酶和NBT活性显着增加。与对照组相比，含橄榄叶提取物的饮食组的胆固醇含量显着降低。此外，与对照组相比，含200 mg / kg橄榄叶提取物的饮食组的血清甘油三酸酯和car体脂质含量显着降低。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的日粮组的总蛋白，白蛋白，球蛋白和钙含量显着更高。我们的结果表明，含有200 mg / kg橄榄叶提取物的日粮是有效的饲料添加剂，具有改善该品种的生长性能和健康状况的潜力。与对照组相比，含橄榄叶提取物的饮食组的胆固醇含量显着降低。此外，与对照组相比，含200 mg / kg橄榄叶提取物的饮食组的血清甘油三酸酯和car体脂质含量显着降低。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的日粮组的总蛋白，白蛋白，球蛋白和钙含量显着更高。我们的结果表明，含有200 mg / kg橄榄叶提取物的日粮是有效的饲料添加剂，具有改善该品种的生长性能和健康状况的潜力。与对照组相比，含橄榄叶提取物的饮食组的胆固醇含量显着降低。此外，与对照组相比，含200 mg / kg橄榄叶提取物的饮食组的血清甘油三酸酯和car体脂质含量显着降低。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的日粮组的总蛋白，白蛋白，球蛋白和钙含量显着更高。我们的结果表明，含有200 mg / kg橄榄叶提取物的日粮是有效的饲料添加剂，具有改善该品种的生长性能和健康状况的潜力。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的饮食组的血清甘油三酸酯和car体脂质含量显着降低。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的日粮组的总蛋白，白蛋白，球蛋白和钙含量显着更高。我们的结果表明，含有200 mg / kg橄榄叶提取物的日粮是有效的饲料添加剂，具有改善该品种的生长性能和健康状况的潜力。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的饮食组的血清甘油三酸酯和car体脂质含量显着降低。与对照组相比，饲喂含200 mg / kg橄榄叶提取物的日粮组的总蛋白，白蛋白，球蛋白和钙含量显着更高。我们的结果表明，含有200 mg / kg橄榄叶提取物的日粮是有效的饲料添加剂，具有改善该品种的生长性能和健康状况的潜力。