Jurnal Akuakultur SEBATIN

Phytoremediation of Catfish (Clarias gariepinus) Aquaculture Waste Using Giant Salvinia (Salvinia molesta) And Water Lettuce (Pistia stratiotes)

Linda Wulandari, Ibi Fatimah, Tutwuri Handayani, Yulintine, Maryani — Fri, 10 Nov 2023 00:00:00 +0000

This research was conducted with the aim of knowing the ability of giant salvinia (Salvinia molesta) and water lettuce (Pistia stratiotes) aquatic plants to improve the quality of catfish (Clarias gariepinus) aquaculture wastewater with parameters of temperature, acidity (pH), dissolved oxygen (DO), ammonia and organic matter. This research was conducted for 20 days and used a Randomized Block Design (RBD), with observation and sampling time on days: 0, 5, 10, 15, and 20, treatment K as control (without aquatic plants), giant salvinia (KI)) and water lettuce (KA). The results showed that the phytoremediation process using aquatic plants, water lettuce, and giant salvinia, had a significant effect on improving the quality of wastewater from catfish aquaculture waste. Water lettuce was able to reduce ammonia levels by 97.81% and organic matter by 33.19%, while giant salvinia was able to reduce ammonia levels by 97.23% and organic matter by 20.00%. This shows that in improving the quality of catfish aquaculture waste, water lettuce (Pistia stratiotes) is more effective than giant salvinia.

Combination Of Tofu And Fermented Taro Leaf Midrib On Growth Maggot Black Soldier Fly (Hermetia illucens)

Mon, 13 Nov 2023 01:35:36 +0000

This study aims to determine the effect of different combinations of tofu and fermented taro leaf midrib on the growth of Maggot Black Soldier Fly. The research method used is the experimental method using a Completely Randomized Design (CRD) which consists of 4 levels of treatment, namely A (100% tofu); B (75% tofu+ 25% fermented taro leaf midrib); C (50% tofu + 50% fermented taro leaf midrib); D (25% tofu + 75% fermented taro leaf midrib). Parameters observed were BSF maggot length and weight growth, digested feed conversion efficiency (ECD), waste reduction index (WRI), BSF maggot productivity. Analysis of the data used was Analysis of Variance (ANOVA) and to determine the best treatment using a follow-up test in the form of Duncan's test with a significance level of 5%. The results showed that different combinations of tofu and fermented taro leaf midrib had a significant effect on the growth of Maggot BSF. The best combination of tofu and fermented taro leaf midrib on the growth of Maggot BSF was the use of 75% tofu + 25% fermented taro leaf midrib which has a significant effect when compared to other treatments.

Rearing Hoven’s Carp (Leptobarbus hoevenii) by Feeding Fermented With Herbal Supplements in a Recirculation System

Abd Haris, Iskandar Putra, Rusliadi — Mon, 13 Nov 2023 02:11:04 +0000

Study aims to determine the best dose in rearing hoven’s carp (Leptobarbus hoevenii) by feeding fermented feed with herbal supplements in a recirculation system. This research was conducted from 16 January - 24 February 2022 at the UPT Experimental Pond of the Faculty of Fisheries and Marine Scnie, University of Riau. The container used was a black tub with a volume of 100 L as many as 15 units with a stocking density of 20 individuals / 80 L. This study used a one-factor completely randomized design (CRD) method with five levels of treatment and three replications. The level of treatment applied in this study was P₀= without giving herbal supplements (control), P₁ = doses of herbal supplements 100 ml / kg of feed, P₂ = doses of herbal supplements 200 ml / kg of feed, P₃ = dose of herbal supplements 300 ml/kg of feed and P₄ = doses of herbal supplements 400 ml/kg of feed. The results showed that giving herbal supplements to feed with different doses had a significant effect (P <0.05) on growth but had no significant effect (P> 0.05) on the survival of leptobarbus hoevenii. The best treatment was found at the herbal supplement dosage of 300 ml/kg of feed, which resulted in absolute weight growth (5.52 g), absolute length growth (4.55 cm), specific growth rate (2.92 %), feed conversion ratio (1.80), survival rate (100%), feed digestibility (63.77%) , protein digestibility (80.16%).

Isolation of Lactic Acid Bacteria from Intestines of Eel (Monopterus albus) Raised in Biofloc System Cultivation

Feri Julianto, Iesje Lukistyowati, Henni Syawal — Fri, 17 Nov 2023 15:59:53 +0000

Biofloc technology is one of the most profitable alternative solutions to the problem of aquaculture waste. The research was carried out from July to August 2020 at the Laboratory of Fish Parasites and Diseases, Faculty of Fisheries and Marine Affairs, Riau University. The purpose of this study was to isolate and identify candidate lactic acid bacteria (LAB) that have the potential as probiotics from the intestines Monopterus albus and to determine the growth rate of candidate probiotic bacteria and can suppress the growth of the pathogenic bacteria Aeromonas hydrophila. The method used is the experimental method with treatment of pH 2, pH 4 and pH 6, isolation was carried out from the best Monopterus albus rearing with a stocking density of 30 fish/25 liters of water. Candidate probiotic bacteria was found from the intestines of Monopterus albus as many as 6 LAB candidate isolates based on the results of physical, biochemical and pH treatments, the morphology of the probiotic candidate isolates consisted of one type of bacteria, namely Lactobacillus, from the 6 isolates which showed the widest zone of inhibition against the pathogenic bacteria Aeromonas hydropila was isolate derived from Monopterus albus intestine result shown that which grows at pH 2 is BL 2.1.1 with an inhibition zone diameter of 9,05 mm.

The Effect of the Dose of Herbal Supplements In Feed on The Growth And Survival Rate of Asian Redtail Catfish (Hemibagrus nemurus)

Ahmad Nurul Fikri, Usman Muhammad Tang, Mulyadi — Fri, 17 Nov 2023 00:00:00 +0000

This research aim to determine the optimal dose of additional herbal supplements in feed toward the growth performance and survival rate of red tilapia (Oreochromis niloticus) by using recirculation system. This research was conducted on November 01-December 10, 2021 at Laboratory of aquaculture technology, Marine and Fisheries Faculty, University of Riau. This research was using experimental method by completely random design (RAL) one factor with three replications. The treatments were: A: 0 mL/kg of feed (control), B: 50 mL/kg of feed, C: 75 mL/kg of feed, and D: 100 mL/kg of feed. The herbal supplements were consisted of turmeric, and ginger with Bacillus sp. and yeast (Rhizopus oligosporus). The results showed that a different doses of additional herbal supplements affecting the growth performance and the survival rate of catfish using recirculation system. In addition, it also affected the absolute weight growth, absolute length growth, feed efficiency and feed conversion ratio.The optimal dose was at 100 mL/kg of feed as it showed significantly different results compared to control. So that while being applied in terms of economy, 100 mL/kg was the most efficient dose, by giving the specific growth rate was 1,55%, survival rate was 98,3%, absolute weight growth was 8,67 g, absolute length was 6,23 cm, feed efficiency was 79,53% and feed conversion ratio was 1,26.

The Effect of Dosing of Goat Manure sludge and Rice Bran on Several Water Quality Parameters in Daphnia magna culture Media

Ahendra Massuhendri, Syafriadiman, Niken Ayu Pamukas — Sun, 19 Nov 2023 13:49:50 +0000

Green water is one of the growing media which can increase the growth of Daphnia magna. This study aims to determine the effect of green water on the abundance of D. magna. The method used was an experimental method with a completely randomized design (CRD) with 4 treatment levels and 3 repetitions. Treatment P₀ = control, P₁ = administration of green water at a dose of 7.5 ml/L, P₂ = dose of 8.5 ml/L, P₃ = dose of 9.5 ml/L. Green water is made with goat manure and bran. Then the two ingredients are mixed in a jar and water is added. Then let stand for 3-7 days and stirred every 2 times a day. The D. magna seeds used were 6 days old with a stocking density of 10 ind/L. The application of green water soaked in rice bran and goat manure had a significant effect on the abundance of D. magna. The best dose treatment was P₃ which produced 2900 ind/l with the highest specific growth rate of 0.710746% with water quality that was still relatively good for the growth of D. magna.

Effect Of Different Stock Densities On Growth And Lifetime Of Red Tilapia (Oreochromis niloticus) That Are Maintained By Bioflok Technology

Septibelavitta Simangunsong, Iskandar Putra, Rusliadi — Sun, 19 Nov 2023 14:10:05 +0000

This research was carried out in December 2020-January 2021 at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine Affairs, University of Riau. The purpose of this study was to determine the effect of stocking density of red tilapia reared with biofloc. The method used in this study was an experiment with a completely randomized design (CRD) one factor four experimental levels three times. The treatments carried out were different stocking densities of red tilapia with treatments that were P1 16 fish/80 L, P2 24 fish/80 L, P3 32 fish/80 L, P4 40 fish/80 L. The best was found in P4 40 tails/80 L with an average weight of 6.63 g, Absolute Weight Growth 5.67 g, Specific Growth Rate 4.83%/day, Average Length Growth 7.95 cm, Absolute Length Growth 4.16 cm, Feed Conversion Ratio 0.93, Feed Efficiency 107.55%, Survival Rate 88.33%, and water quality parameters such as temperature 27-30 OC, pH 5-6, DO 7.5-8.2 mg/L and NH3 0.009-0.035 mg/L

Effect of Papain Enzyme With Different Dosages in Feed On Growth and Survival Rates of Climbing Perch Fish (Anabas testudineus) in Recirculation System

Haycel Andrea Pratama, Rusliadi, Mulyadi — Sun, 19 Nov 2023 14:30:23 +0000

The purpose of this study was to determine the best dose of papain in commercial feed to increase the growth of Climbing perch (Anabas testudineus). The research container used was a black bucket with a round shape with a volume of 100 L with a stocking density of 20 fish/container or 400 fish/m³. This study used an experimental method with a completely randomized design (CRD) with one factorial, five treatments and three replications. The treatment applied was feeding containing papain enzyme with different doses, namely P0= without the addition of papain enzyme, P1= addition of papain enzyme 1.25%/kg feed, P2= addition of papain enzyme 2.25%/kg feed, P3= papain enzyme 3.25%/kg feed and P4= addition of papain enzyme 4.25%/kg feed. The results showed a significant effect (P<0.05) on absolute weight, absolute length, specific growth rate, feed conversion ratio, enzyme activity and there was no significant effect (P>0.05) on the survival rate. The best growth rate was found in treatment P3 with absolute weight value: 4.70±0.18 g, absolute length: 2.0±0.20 cm, specific growth rate: 2.21±0.02% per day, survival: 100 %, feed conversion ratio: 1.26±0.03 %, and number of enzymes: 0.0716±0.0007 IU/mL, and with the growth of the average weight of water spinach 60.08 g and the average length of water spinach 100.4 cm in P1 treatment.

Utilization Of Alocasia macrorrhiza Fermented Using Kombucha In Feed For The Growth Ff Asian Redtail Catfish (Hemibagrus nemurus)

Panuturi Julianto Siboro, Adelina, Indra Suharman — Sun, 19 Nov 2023 14:42:09 +0000

The research was conducted at fish nutrition laboratory and the reservoir of the Faculty of Fisheries and Marine Science, University of Riau which was carried out from July to September 2021. This study aims to find out the effect of the use of sente leaf flour (Alocasia macrorrhiza) fermented with kombucha in feed on the growth of Asian Redtail Catfish (Hemibagrus nemurus). This study used a Completely Randomized Design (CRD) with 5 levels of treatment and 3 repetitions so that 15 experimental units were needed. Asian Redtail Catfish are used weigh 1.24 ± 0.02 g. The test fish used is inserted into the cage with a stocking solid of 25 heads / m3. The treatment used in this study is in the form of the use of fermented cente leaf flour in feed by 0, 5, 10, 15, 20%. Test feed is given as much as 10% of the biomass weight with the frequency of feeding 3 times a day, feeding is carried out for 56 days. To measure the digestibility of fish feed is given feed containing Cr2O3 as much as 0.5% of the amount of feed. Test fish measuring 1.24 ± 0.02 g are put into the aquarium with a stocking solid of 10 heads / cm³. After feeding, fish feces are collected and dried to measure their Cr2O3 and protein levels. The results showed sente leaf flour fermented using kombucha was able to replace soy flour by 20% in fish feed and gave the best results, namely feed digestibility 66.22%, protein digestibility 81.08%, feed efficiency 43.84%, protein retention 24.81%, specific growth rate 3.36% and 96.67% survival.

The Effect of Fermentor Dosage on Tofu Dregs as Tubifex sp. Culture Media on Population and Biomass

Vernanda Febiola Djatmiko, Sukendi, Netty Aryani — Sun, 19 Nov 2023 14:51:37 +0000

Natural feed is an initial feed that has a complete nutritional content and is closer to the biological needs of fish larvae, one of which is Tubifex sp. Tubifex sp is a type of natural feed that is very important in freshwater aquaculture activities, especially for catfish hatcheries. Tubifex sp. has a fairly high nutritional content, 57% protein, 13.3% fat, 2.04% crude fiber, 3.6% ash content and 87.7% water. The purpose of this study was to determine the effect of fermentor dosing on tofu dregs as a Tubifex sp. culture medium on population and biomass growth rates. This research was conducted in August - October 2023 located in the laboratory of the Faculty of Fisheries and Marine, Riau University. The research method used was an experimental method using a completely randomized design (CRD), consisting of 4 treatments and 3 replications. The fermentor dose used was in the treatment P0 (0.0 ml), P1 (0.5 ml), P2 (1.0 ml), P3 (1.5 ml). The results of this study indicated that the dose of fermentor on tofu dregs as a culture medium for Tubifex sp. had a significant effect (P<0.05) on population and biomass. The highest population and biomass were found in treatment P2, with a population of 13519 ind and a biomass of 49.52 grams which were reared for 56 days. Based on the results of the study it can be concluded that giving fermenter doses to tofu dregs as a Tubifex sp. culture medium can increase population and biomass.