Pristadyna, Nanda (2023) Pengaruh Pemberian Kascing Dengan Jumlah Berbeda Terhadap Kelulushidupan Dan Pertumbuhan Benih Ikan Selais (kryptoterus Lais) Yang Dipelihara Dalam Air Payau. Other thesis, Universitas Islam Riau.

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Abstract

This research was conducted at the Fish Seed Center (BBI), Faculty of Agriculture, Riau Islamic University, Pekanbaru. The research was conducted for 14 days starting in August 2022. The purpose of this study was to determine the effect of giving different amounts of vermicompost on the growth of jamis (Kryptopterus lais) seeds reared in brackish water. The method used in this study was an experimental method using a completely randomized design (CRD) with 5 treatments and 3 replications. Treatment (P0) as a control, (P1) addition of 5 grams of vermicompost, (P2) addition of 10 gr of vermicompost, (P3) addition of 15 gr of vermicompost, (P4) addition of 20 gr of vermicompost. The jamai fish seeds used had an average weight and length of 0.094 g/head and 2.83 cm/head. The container used is a plastic jar with a size of 10 L as many as 15 jars. The results of the study showed that the survival rate of jamai fish seeds ranged from 90-96%, which was the best in the treatment. The highest weight growth was found in treatment P4 with a weight of 0.61 gr and the lowest was P1 0.36 gr. While the highest growth in length was at P4 with a length of 1.61 cm and the lowest was at P1 with a length of 0.96 cm. The highest daily growth rate was in the P4 treatment of 4.33% and the lowest in the P1 treatment of 2.59%. The results of the analysis of variation showed that there was no effect of casting worms in different amounts on the survival, weight and length growth of the fingerlings (p <0.50). Water quality parameters are temperature 26°-30° C, pH 6, Dissolved Oxygen (DO) 6.2-6.8 ppm and Ammonia 0.83-4.69 mg/L.

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