Assessing the impact of Bacillus strains mixture probiotic on water quality, growth performance, blood profile and intestinal morphology of Nile tilapia, Oreochromis niloticus
Assessing the impact of Bacillus strains mixture probiotic on water quality, growth performance, blood profile and intestinal morphology of Nile tilapia, Oreochromis niloticus
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DOI：
10.1111/anu.12797
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发表时间：
2018-12-01
影响因子：
3.5
通讯作者：
Eltholth, Mahmoud
中科院分区：
文献类型：
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作者：
Elsabagh, Mabrouk;Mohamed, Radi;Eltholth, Mahmoud
本研究的目的是评估商业益生菌Sanolife PRO-F对单性别尼罗罗非鱼的水质、生长性能、血液特征和肠道形态的影响。进行为期10周的田间试验，其中将罗非鱼鱼种（20 +/- 1.26 g）随机分配到三个重复池塘中，这些池塘被细分为三个处理组，分别接受0（B 0）、0.1（B1）和0.2（B2）g/kg饲料的Sanolife PRO-F。试验结果表明，经处理的饲料能显著改善罗非鱼的生长性能、饲料转化率和血液指标。结果表明，罗非鱼的全肠长度、前肠绒毛高度、前B1和B2组罗非鱼的生长和肠道形态无显著差异。B1组的氨氮浓度较低，而B2组的电导率、盐度和总溶解性固体较高。饲料B1和B2均提高了池塘水的pH值。总之，以0.1-0.2 g/kg饲料施用Sanolife PRO-F可能对养殖尼罗罗非鱼的生长、免疫力、应激反应、肠道健康和功能以及水质产生有益影响。
The aim of this study was to assess the impact of a commercial probiotic, Sanolife PRO-F, on water quality, growth performance, blood profiles and intestinal morphometry of monosex Nile tilapia. A field trial was conducted for 10 weeks in which tilapia fingerlings (20 +/- 1.26 g) were randomly distributed into three replicate ponds which were subdivided into three treatment groups, receiving Sanolife PRO-F at 0 (B0), 0.1 (B1) and 0.2 (B2) g/kg diet, respectively. The results showed a significant improvement in growth performance, feed conversion ratio and blood profiles in tilapia fed on treated diets. The whole intestinal lengths, anterior and terminal intestinal villi heights and anterior goblet cells count were greater in tilapia fed on treated diets. There were no noticeable differences in growth and intestinal morphology between tilapia fed on B1 and B2 diets. The ammonia concentration in water was lower with B1 diet while electric conductivity, salinity and total dissolved solids were higher with the B2 diet. The pH level of pond water was enhanced by both diets, B1 and B2. In conclusion, application of Sanolife PRO-F at 0.1-0.2 g/kg diet might have beneficial effects on growth, immunity, stress responses and gut health and function as well as the water quality of farmed Nile tilapia.