Effect of sea purslane (Halimione portulacoides) as feed additive on larval rearing of red tilapia (Oreochromis aureus × Oreochromis mossambicus)
Paper Details
Effect of sea purslane (Halimione portulacoides) as feed additive on larval rearing of red tilapia (Oreochromis aureus × Oreochromis mossambicus)
Abstract
Sea purslane (Halimione portulacoides) is a potential feed additive due to its vitamin C, fatty acid content, dietary fiber, protein, and natural minerals. Sea purslane as feed additives on tilapia larvae were evaluated at different treatments that correspond to different concentration levels for treatment 1 is 1%, treatment 2 is 3%, treatment 3 is 5%, and control that contains no concentration of sea purslane, focusing on growth, survival rates, and proximate analysis of ingredients used. In terms of mean final weight, all treatments have increased their weight. Treatment 3 recorded the highest gain with a mean final weight of 530mg, followed by treatment 2 with 350mg, treatment 1 with 290mg, and control 290mg. Treatment 3 recorded the highest gain with a specific growth weight of 4.83%day-1; this was followed by treatment 2 with 3.98%day-1, treatment 1 with 3.62%day-1, and for negative control 3.62%day-1. The one-way ANOVA showed significant differences between the treatments regarding their mean specific growth rate (P>0.05). Treatment 3 shows significantly higher SGR with 4.83 day-1 from all treatment means. High survival rates were observed in all treatments, ranging from 86-95%. In the culture of red tilapia, it is evident that sea purslane as a feed additive helps in the growth of the larval stage of red tilapia. Another study should also be conducted on the effectiveness of sea purslane at other stages of red tilapia.
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