Ratriana Hartini Saleh, Pande Gde Sasmita Julyantoro, Dewa Ayu Angga Pebriani

Effect of Addition of Soybean Oil to Feed on Eggs Hatching of Dumbo Catfish (Clarias gariepinus)

Introduction

effect of addition of soybean oil to feed on eggs hatching of dumbo catfish (clarias gariepinus). Learn how adding soybean oil to Dumbo Catfish (Clarias gariepinus) feed impacts egg hatching. Optimal 3% addition boosts fecundity and hatchability for aquaculture.

Abstract

Many freshwater fish farming activities are carried out to meet the increasing demand for fish consumption. One commodity with high market demand is African catfish (Clarias gariepinus). The success of cultivation activities is the maintenance of broodstock is very influential on the eggs production. It is necessary to pay attention to the nutrients in the feed during cultivation. This study aims to determine the effect of adding soybean oil to feed on hatching eggs carried out at the Regional Technical Implementation Unit (UPTD) of Freshwater Aquaculture, Denpasar City. African catfish (C. gariepinus) were fed twice a day with feed mixed with soybean oil with three treatments namely 0%, 3% and 5% for five months. The fecundity and hatchability of eggs were calculated using a 10x10cm transect and analyzed using ANOVA analysis. Water quality observations were carried out once a week and ammonia at the end of each month. The results of this study obtained that fecundity values ranged from 214-546 grains/transect and egg hatchability values ranged from 0-62,62%. The results of observations of water quality showed a value that could still be tolerated by African catfish during the study. These results indicate that adding of 3% soybean oil to the broodstock feed of African catfish helps to increase the quality and quantity of hatching eggs.

Review

This study investigates a highly relevant topic in aquaculture, focusing on optimizing the reproductive success of African catfish (*Clarias gariepinus*), a species of significant economic importance. The authors address the critical need for improved broodstock nutrition by evaluating the impact of dietary soybean oil supplementation on egg production and hatchability. The clear objective—to determine the effect of soybean oil on hatching eggs—is commendable, as is the practical application of identifying a feed additive that could enhance aquaculture productivity. The five-month experimental duration provides a reasonable timeframe for observing the effects of dietary changes on reproductive parameters. The methodology employed a straightforward approach, utilizing three distinct dietary treatments (0%, 3%, and 5% soybean oil) administered to African catfish broodstock. The measurements of fecundity and hatchability, assessed via a 10x10cm transect and analyzed using ANOVA, are appropriate metrics for the study's aim. The reported results indicate fecundity values ranging from 214-546 grains/transect and hatchability values from 0-62.62%, with stable water quality maintained throughout the study. Crucially, the abstract highlights a significant finding: the addition of 3% soybean oil to the broodstock feed notably increased both the "quality and quantity" of hatching eggs. While the term "grains/transect" for fecundity could benefit from further explanation regarding its correlation to total egg production, and "quality" specifically refers to hatchability in this context, the positive impact of the 3% treatment is clearly communicated. In conclusion, this research provides valuable preliminary data suggesting that 3% soybean oil supplementation in African catfish broodstock feed can effectively enhance reproductive outcomes, particularly hatchability. This finding has direct implications for improving aquaculture practices and overall fish production efficiency. Future work would benefit from a more detailed analysis of the specific components of "egg quality" (e.g., larval survival rates, deformities, or biochemical composition of the eggs), as well as an economic assessment of incorporating soybean oil into commercial feeds. Exploring the underlying physiological mechanisms behind the observed improvements would also contribute significantly to the broader understanding of lipid nutrition in fish reproduction.

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