■尼罗罗非鱼(Oreochromisniloticus)是水产养殖中的主要养殖物种。然而,关于番石榴和猕猴桃叶提取物与条件因子之间的关系的文献很少。因此,本研究旨在探讨番石榴和猕猴桃叶提取物补充日粮对特定生长速率的影响,长度-重量关系,尼罗罗非鱼的条件因子。
■六百三十只尼罗罗非鱼(8.7±0.4g)随机分布在再循环系统中的二十一个水箱(每个水箱30条鱼)中。在60天的时间里,给鱼饲喂添加5g/Kg和10g/Kg番石榴叶提取物(GLE-5,GLE-10)的饮食,星形醋栗叶提取物(SGLE-5,SGLE-10),和两者的混合物(MxLE-5,MXLE-10)。随后,比增长率,长度-重量关系,并确定了条件因子。
■60天后,在所有的GLE中,特定的生长率明显更高,SGLE,和MxLE组与对照组相比。对照组和所有GLE的最终长度和重量均存在显着差异,SGLE,和MxLE组。回归方程分析表明,对照组和所有GLE中尼罗罗非鱼的长度和重量之间存在正相关(r=0.970、0.977、0.976、0.974、0.974、0.974和0.969)。SGLE,和MxLE组。所有GLE中的回归指数“b”值,SGLE,MxLE组>3,表明尼罗罗非鱼与对照组相比呈正异速生长模式(b=2.866),表现出负的异速测图。最终条件因子值在对照组或任何植物提取物组中都没有显着差异。
■尼罗罗非鱼表现出积极的异速生长模式,并在饲喂GLE时保持良好的健康状况,SGLE,和MxLE组。因此,这些植物提取物证明适合于商业生产尼罗罗非鱼。
UNASSIGNED: Nile tilapia ( Oreochromis niloticus) is predominant cultured species in aquaculture. However, there is a scarcity of literature regarding relationship between guava and star gooseberry leaf extract and the condition factor. Thus, the present study aims to investigate the effect of guava and star gooseberry leaf extract-supplemented diets on the specific growth rate, length-weight relationship, and condition factor of Nile tilapia.
UNASSIGNED: Six hundred and thirty Nile tilapia (8.7±0.4 g) were randomly distributed among twenty-one tanks (30 fish per tank) within a recirculation system. Over a 60-day period, the fish were fed diets supplemented with 5g/Kg and 10g/Kg of guava leaf extract (GLE-5, GLE-10), star gooseberry leaf extract (SGLE-5, SGLE-10), and a mixture of both (MxLE-5, MXLE-10). Subsequently, specific growth rate, length-weight relationship, and condition factor were determined.
UNASSIGNED: After 60 days, the specific growth rate was significantly higher in all the GLE, SGLE, and MxLE groups compared to the control group. The final lengths and weights differed significantly both in the control group and all the GLE, SGLE, and MxLE groups. The analysis of the regression equation indicated a positive correlation (r = 0.970, 0.977, 0.976, 0.974, 0.974, 0.974, and 0.969) between the length and weight of Nile tilapia in the control group and in all the GLE, SGLE, and MxLE groups. The regression exponent \" b\" values in all the GLE, SGLE, and MxLE groups were >3, indicating a positive allometric growth pattern in Nile tilapia compared to the control ( b=2.866), which exhibited a negative allometry. The final condition factor values did not differ significantly in either the control group or any of the plant extract groups.
UNASSIGNED: Nile tilapia exhibited positive allometric growth patterns and maintained good health when fed with GLE, SGLE, and MxLE groups. Therefore, these plant extracts demonstrate suitability for commercial Nile tilapia production.