Department of Aquaculture, Faculty of Fisheries and Marine Universitas Riau
Morphometric Characters Of Olive Ridley Turtle (Lepidochelys Olivacea) Hatching At Buggei Siata Beach, Betumonga Village, Mentawai Islands Regency.
The coastal waters of Indonesia are extensive, and one of the areas is the Mentawai Islands Regency. The Mentawai Islands are a distribution area for several types of turtles, including the leatherback turtle, green turtle, hawksbill turtle, and olive ridley turtle (Lepidochelys olivacea). The study focuses on the morphometric characteristics of olive ridley turtle hatchlings. Olive ridley turtles found in the Buggei Siata Turtle Conservation Area do not have complete morphometric data, so an observation of the morphometric characteristics of olive ridley hatchlings in this area was conducted. This study aims to determine the morphometric characteristics of olive ridley hatchlings and to complete the data for turtle conservation in Buggei Siata, Betumonga. The research was carried out from December 2021 to March 2022 at Buggei Siata Beach, Betumonga. The data analysis used ANOVA followed by Tukey's post-hoc test with 5 different nests and a total sample size of 35 hatchlings per nest. The results of the morphometric characteristics are as follows: carapace length (CL) ranged from 37.93 to 43.56 mm, carapace width (CW) from 28.36 to 36.35 mm, neck length (NL) from 10.08 to 14.21 mm, head width (HW) from 12.03 to 15.34 mm, front limb length (FLL) from 31.06 to 39.74 mm, plastron width (PW) from 19.74 to 29.85 mm, and weight from 13 to 18 grams. Significant differences were found between nests (p<0.05) in these measurements, while for head length (HL) from 16.98 to 19.91 mm, head height (HH) from 10.73 to 13.93 mm, rear limb length (RLL) from 11.37 to 21.88 mm, and plastron length (PL) from 23.86 to 37.21 mm, no significant differences were observed between nests (p>0.05). Based on the data, there are differences in the morphometric size of olive ridley hatchlings among the observed nests
Copyright (c) 2026 Savni Retalia Sababalat, Donopan Smanungkalit, Harfiandri Damanhuri, Suparno, Mohd. Uzair Rusli (Author) https://creativecommons.org/licenses/by/4.0
Utilization of Ketapang Leaf Extract (Terminalia catappa) on Water Physics Parameters and Seed Growth of Jelawat (Leptobarbus hoeveni)
Ketapang (Terminalia catappa) leaf solution plays an important role in water quality and the growth of catfish. This research was conducted in May 2023 at the Environmental Quality Laboratory of Aquaculture, Faculty of Fisheries and Marine Sciences, Universitas Riau. This study aims to determine the effect and get the best dose of ketapang leaf solution on the physics parameters of water growth media for catfish. This study used a completely randomized design (CRD) method with four treatments and three replicates, the size of the fish used in this study was 4-6 cm. The results of the research that has been done are the provision of ketapang leaf solution gives an influence on the concentration of pH, growth, and survival rate. The best treatments was obtained in P2 (4 g/L) with pH value (7.19±0.04), absolute length (0.93 cm), absolute weight (1.47 g), and survival rate (96.67%).
Copyright (c) 2026 Alfiah Sari, Niken Ayu Pamukas, Rodhi Firmansyah (Author) https://creativecommons.org/licenses/by/4.0
The Effect of Different Types and Combinations of Natural Feed on The Growth and Survival of Glofish Tetra Larvae (Gymnocorymbus ternetzi)
Glofish Tetra (Gymnocorymbus ternetzi) is a transgenic product of tetra fish in which a fluorescent gene from jellyfish is inserted into the fish egg genome, resulting in heritable expression of fluorescent protein. Currently, glofish is one of the most sought-after ornamental fish commodities, so it has high economic potential in the cultivation sector. The success of ornamental fish cultivation is influenced by the quality and type of feed given from the larval to broodstock phase. This study aims to determine the effect of providing different types and combinations of natural feed on the growth and survival of glofish tetra larvae. This research was conducted for 40 days in May - July 2025, located at the Fish Breeding and Cultivation Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau, Pekanbaru. The method used in this study was an experimental method using a one-factor Completely Randomized Design (CRD) with 4 treatment levels and 3 repetitions. The larvae used in the study were 7 days old and underwent feed adaptation for 2 days from the results of natural spawning carried out at the Fish Spawning and Breeding Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau. Feeding is done with a frequency of three times a day, namely at 08.00, 12.00, and 17.00 WIB, and is given to the larvae using the ad-satiation method. The parameters measured in this study were absolute length and absolute weight growth, larval growth rate, larval survival, larval response to feed and water quality. The results of the analysis of variance (ANOVA) test showed that providing different types and combinations of natural feed had a significant effect (P<0.05) on absolute length growth, absolute weight growth, specific growth rate and survival of glofish tetra larvae. The best treatment was P2 (AR2T4) with an absolute length of 2.34±0,01cd cm and an absolute body weight of 0.4409±0,0070c g, a specific growth rate of 2.85±0,025d %, and a survival rate of 95,00±1,67b %. The water quality in this study was classified as optimal, with temperatures ranging from 25.9 to 27.1 °C, pH 6.3 to 6.4, and DO 5.43 to 6.58 mg/L.
Copyright (c) 2026 Krisda Novita Sigalingging, Sukendi Sukendi, Nur Asiah (Author) https://creativecommons.org/licenses/by/4.0
Histopathology Intestines of Trichogaster trichopterus Pall Infected by Digenean Trematode Parasites (Clinostomum sp.)
Trichogaster trichopterus Pall is a freshwater fish widely found in Indonesian waters, particularly in the swamp areas of Riau Province. This study was conducted from September 2024 to March 2025 at the Laboratory of Fish Parasites and Diseases, Faculty of Fisheries and Marine Science, University of Riau. The objective of this research was to analyze the intestinal tissue structure of T. trichopterus infected with Clinostomum sp. The methods used were purposive sampling and survey techniques. Fish samples were collected from the reservoir at the Faculty of Fisheries and Marine Science, University of Riau. Sampling was conducted three times over 30 days at four predetermined stations. Station I was located at the reservoir entrance, Station II to the west, Station III to the north of the entrance, with a 50-meter distance between stations, and Station IV was located upstream. The research procedures included sampling, intestinal organ fixation in formalin, and preparation of histopathological slides through a series of stages: dehydration, alcohol removal, infiltration, embedding, sectioning, staining, and mounting. Observed parameters included clinical symptoms and intestinal histological structure, which were analyzed descriptively. The results showed that the intestines of infected fish exhibited alterations, including epithelial lifting, goblet cell proliferation, oedema, hypertrophy, haemorrhage, inflammatory cell infiltration, and necrosis. The histopathological index of infected fish intestines reached a damage score of 7, categorised as severe. Based on the findings, it can be concluded that Clinostomum sp. infection causes significant alterations to the intestinal structure of T. trichopterus
Copyright (c) 2025 Devi Yunita Panggabean, Morina Riauwaty, Henni Syawal (Author) https://creativecommons.org/licenses/by/4.0
Effect of Ketapang (Terminalia catappa) Leaf Powder on Water Chemical Quality Parameters in Growth Media Asian Redtail Catfish (Hemibagrus nemurus)
This research was conducted from June to July 2024 at the Faculty of Fisheries and Marine Sciences, Universitas Riau, Pekanbaru. The purpose of this study was to determine the best dose of ketapang leaf powder (Terminalia catappa) on water chemistry parameters in the growth medium of baung fish fry (Hemibagrus nemurus). The research method used a one-factor Completely Randomized Design with 4 levels of treatment and 3 replicates. P0 (control), the use of ketapang leaf powder at a dose of 0.5 g/L (P1), 1 g/L (P2), 1.5 g/L (P3), and 2.5 g/L (P4). Giving ketapang leaf powder with different doses gives an influence on water chemistry parameters in the growth medium of Asian redtail catfish. P1 with a dose of 0.5 g/L produced the best growth and survival reached 93.33%. Providing good water quality during the study, pH was in the range of 6.53-7.20, DO 4.18-4.21 mg/L, temperature 27-28.67oC. On day 30, the lowest ammonia level was found in treatment P1 at 0.0683.
Copyright (c) 2025 Isna Romadia, Syafriadiman Syafriadiman, Saberina Hasibuan (Author) https://creativecommons.org/licenses/by/4.0
The Effect of Giving Herbal Medicine Feed with Different Doses on the Growth and Survival of Striped Catfish (Pangasius sp.) Kept Using a Resirculation System
Catfish (Pangasius sp.) is one of the superior freshwater fish commodities in Indonesia which is in great demand by local and foreign communities because the price is relatively affordable. The high demand for patin fish in the market has resulted in many people switching to cultivating patin fish as a livelihood. In cultivation activities, one aspect related to the growth of catfish is feed. The method used in this study is an experimental method using a Completely Randomized Design (CRD). The purpose of this study was to obtain the best dose of feed supplemented with herbal feed in catfish maintenance using a recirculation system. The placement of each treatment in the experimental unit was carried out randomly. The treatments given were PO: Control, P1: 100 ml / kg feed, P2: 200 ml / kg, P3: 300 ml / kg, P4. 400 ml / kg. The best treatment was obtained in treatment P3 with a dose of 300 mL/kg feed which resulted in absolute weight growth of 2.31±0.01 g, absolute length growth of 1.32±0.01 cm, specific growth rate of 1.5310.01%/day, survival rate of 100%, feed conversion ratio of 1.07±0.01 kg
Copyright (c) 2025 https://creativecommons.org/licenses/by/4.0
The Effect of Giving Oxygenic Probiotics with Different Doses On the Growth and Survival of Striped Catfish (Pangasius hypophthalmus) with an aeration system
Striped catfish is the leading commodity for freshwater aquaculture in Indonesia because of its high economic value, rapid growth, high protein content, and low cholesterol. However, intensive aquaculture systems often degrade water quality due to the accumulation of feed residues and metabolites, which triggers stress, lowers immunity, and increases mortality. One solution is the use of oxygenic probiotics containing Nitrosomonas, Nitrobacter, Rhodobacter, and Saccharomyces to decompose ammonia and improve fish digestion. The effectiveness of probiotics is influenced by the dosage of application. The research was conducted in March 2025 at the Cultivation Technology Laboratory, Universitas Riau, using a one-factor Complete Random Design with four levels of treatment (P0 = control, P1 = 1.5 mL/L, P2 = 2.5 mL/L, P3 = 3.5 mL/L, P4 = 4.5 mL/L) and three replicates for 30 days. The results showed P3 as the best treatment with an absolute weight of 4.44±0.03 g, an absolute length of 3.41±0.01 cm, a specific growth rate of 4.37±0.05%, a survival rate of 95.5±3.85%, and an FCR of 1.32±0.005. Water quality parameters: temperature 25.86–29°C, pH 6.1–8.1, DO 4.1–7.2 mg/L, and ammonia 0.003–0.168 mg/L.
Copyright (c) 2026 Josua Naiktua Simanjuntak, Mulyadi Mulyadi, Niken Ayu Pamukas (Author) https://creativecommons.org/licenses/by/4.0
The Effect of Stocking Density of Red Nile Tilapia (Oreochromis niloticus) on the Growth and Survival Rate of Freshwater Lobster (Cherax quadricarinatus) in a Polyculture System
Freshwater lobster is a genus of freshwater crustaceans that has relatively high market demand. Red tilapia is a type of freshwater fish that is highly sought after by both households and restaurant owners due to its affordable price and high protein content. The polyculture system is the application of a single pond that raises various types of fish that require different foods, so that each type of fish does not compete for food. This research was conducted from February to April 2025 in the Laboratory. Cultivation Technology, Faculty of Fisheries and Marine Sciences, University of Riau. This study aims to determine the optimal stocking density of red tilapia that affects the survival and growth of freshwater lobsters in a polyculture system. Conducted for 56 days at the Cultivation Technology Laboratory of Universitas Riau, the study used a completely randomized design (CRD) with five tilapia density treatments (0, 15, 20, 25, and 30 fish/75 liters) and three replications. The results showed that the treatment with 20 tilapia (P2) produced the best lobster growth, with a weight of 8.97 g, a length of 3.38 cm, and a specific growth rate of 3.60% per day, significantly higher than in other treatments (p < 0.05). Tilapia in this treatment also showed weight increases (5.46 g), length (5.05 cm), and feed efficiency (49.21%), with 100% survival across all treatments. Water quality throughout the study remained optimal, supporting both species. Water quality includes a temperature of 27.4–32.3 °C, a pH of 6.1–7.7, dissolved oxygen (DO) of 2.5–7.3 mg/L, and ammonia of 0.0103–0.1678 mg/L.
Copyright (c) 2025 Julio William Siregar, Iskandar Putra, Niken Ayu Pamukas (Author) https://creativecommons.org/licenses/by/4.0
Erythrocyte Profile of Three Spot Gourami (Trichogaster trichopterus PALL) Infected by Digenetic Trematode Parasite (Clinostomum sp.)
The three spot gourami (Trichogaster trichopterus) is a highly sought-after commodity by the community, often processed into salted fish or consumed fresh.. Clinostomum sp. infection, also known as "yellow grub", is a disease in fish caused by the digenea trematode parasite. This parasite is zoonotic, which means it can be transmitted to humans, especially through consumption of raw or undercooked freshwater fish. In humans, this infection can cause laryngo-pharyngitis (inflammation of the throat) and in severe cases, can cause death due to lack of oxygen (asphyxia). The study was conducted from September 2023 to January 2025, at the Laboratory of Parasites and Fish Diseases, Faculty of Fisheries and Marine Sciences, Universitas Riau. The purpose of the study was to determine the erythrocyte profile of marsh gourami infected with the digenea trematode parasite (Clinostomum sp.). The method used in this study was the purposive sampling survey method. Sampling was carried out at the FPK UNRI Reservoir with 3 location points and the total number of sample fish was 180. The results showed that fish infected with Clinostomum sp. had an erythrocyte count of 0.84–1.07 × 10⁶ cells/mm³, a hemoglobin level of 4.29–4.54 g/dL and a hematocrit value of 21.7–27.3%. The range of water quality in the FPK reservoir during the study was a temperature of 26.0-31.2oC, pH ranging from 4.2to 6.1 and DO values ranging from 4.3-6.8 mg/L. Based on the data obtained, it can be concluded that Clinostomum sp. infection can affect fish health
Copyright (c) 2026 Muhammad Iqbal, Morina Riauwaty, Henni Syawal (Author) https://creativecommons.org/licenses/by/4.0
Culture of Snakehead (Channa striata) Fed with Snail (Achatina fulica) in a Recirculating System
This research was conducted over a period of 40 days from February to April 2025 at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine, Universitas Riau. The study aimed to determine the optimal dosage of snail (Achatina fulica) feed for the growth and survival of snakehead (Channa striata) fry reared in a recirculating system, as well as to confirm the potential of snail feed as an alternative diet. The research employed an experimental method using a Completely Randomized Design (CRD) with one factor consisting of four treatment levels, each replicated three times, resulting in 12 experimental units. The treatment levels were: P1 = 5% snail feed of fish biomass, P2 = 10%, P3 = 15%, and P4 = 20% of fish biomass. The results showed that different doses of snail feed significantly affected the growth performance of snakehead fry in the recirculating system. The best treatment was P2 (10% of fish biomass), which resulted in a weight gain of 3.50, a length gain of 4.0 cm, a specific growth rate of 3.57%, a feed conversion ratio of 1.62, and a survival rate of 89%. Water quality parameters, including temperature, pH, dissolved oxygen, and ammonia concentration, were within the optimal range for the growth and survival of snakehead fish, with temperature ranging from 28.3–29.9°C, pH from 6.1–7.4, dissolved oxygen from 4.1–6.6 mg/L, and ammonia concentrations ranging from 0.0277–0.1208 mg/L
Copyright (c) 2025 Dinda Aulia Darussalam, Rusliadi Rusliadi, Iskandar Putra (Author) https://creativecommons.org/licenses/by/4.0
The Effect of Different Stocking Densities on Growth and Survival Rate of Giant Prawns (Macrobrachium rosenbergii) in the Biofilter Recirculation System
This research aims to determine the effect of different stocking densities on the growth and survival of Giant prawns (Macrobrachium rosenbergii) which are reared using a biofilter recirculation system. This research was conducted from June to July 2024 at the Cultivation Technology Laboratory, Faculty of Fisheries and Marine, Universitas Riau. This research used a one-factor Completely Randomized Design (CRD) method with four treatment measures and three replications. The treatment levels applied in this study were stocking density 20 fish/m2, stocking density 40 fish /m2, stocking density 60 fish /m2, and stocking density 80 fish /m2. The results of the study showed that different stocking densities had a significant effect (P<0.05) on the growth performance of Giant prawns. The best treatment was found at a stocking density of 80 fish /m2 which resulted in growth in absolute weight 2.34 g, absolute length 3.96 cm, specific growth rate 2.59%, survival rate was 98.33% and THC value was 20.654×106 cells/mL.
Copyright (c) 2025 Olaelita L Tobing, Rusliadi Rusliadi, Heri Masjudi (Author) https://creativecommons.org/licenses/by/4.0
Influence of Different Number of Boring on Water Quality and Growth Rate of Galah Shrimp (Macrobrachium rosenbergii) in Recirculation Systems
This study was conducted for 50 days in April-May 2024. The rearing of king prawns was carried out in the Laboratory of Aquaculture Technology, Department of Aquaculture, Faculty of Fisheries and Marine Sciences, Riau University. The purpose of this study was to determine the effect of different amounts of bioring on water quality and growth rate of king prawns (Macrobrachium rosenbergii) in the recirculation system. The method used in this research is the experimental method of Completely Randomized Design (CRD), which uses 4 levels of treatment with 3 replications. The treatment applied at this stage of the research is the difference in the number of bioring as follows P0= control, P1= 30 bioring pieces,P2= 60 bioring pieces,P3= 90 bioring pieces. The best treatment was obtained from the treatment with 90 pieces of bioring which produced an absolute weight growth value of 2.20 g, absolute length growth of 4.33 cm, specific growth rate of 5.50%, THC of 20,669 106 cells/ml and survival rate of 93.33%. Water quality parameters measured during the study obtained a temperature of 26.5-29.9°C, pH 7.1-7.9, dissolved oxygen 5.2-6.9 mg/L, ammonia 0.033-0.288 mg/L and nitrite 0.02 – 0.287 mg/L
Copyright (c) 2025 Putri Kembar Sari, Niken Ayu Pamukas, Heri Masjudi (Author) https://creativecommons.org/licenses/by/4.0
The Effect of Giving Different Feed Doses with the Addition of Viterna Plus Supplements on Fish Growth and Survival Rate Tambaqui (Colossoma macropomum) with Recirculation System
This research was carried out from April 2024 to June 2024 for 50 days. Maintenance is carried out at the Aquaculture Technology Laboratory, Faculty of Fisheries and Marine Science, Universitas Riau. The aim of this research was to determine the effect of different feed doses added with viterna plus supplements on the growth and survival of tambaqui (Colossoma macropomum) using a recirculation system. The method used in this research is an experimental method using a one-factor completely randomized design (CRD) with 4 treatments and 3 replications. The treatments in this study were P1: Feed dose 3% of biomass weight, P2: Feed dose 5% of biomass weight, P3: Feed dose 7% of biomass weight, P4: Feed dose 9% of biomass weight. The best treatment is the P2 treatment (5%) which can increase absolute weight growth by 12.97±0.20, absolute length growth by 3.84± .18, specific growth rate by 3.55±0.00, efficiency feed was 63.56± 0.74, feed conversion ratio was 1.57 ± 0.02, and feed digestibility was 51.92%. The survival rate of tambaqui did not show any real influence and the best survival rate at P2 (5%) was 95%. Water quality parameters during the research found temperatures ranging from 26,3-27,6˚C, pH ranges from 6,7-7,0, DO ranges from 4,1-4,4 mg/l and ammonia ranges from 0,00144-0,00155 mg/L
Copyright (c) 2025 Fadilah Nur Ulfa, Mulyadi Mulyadi, Rusliadi Rusliadi (Author) https://creativecommons.org/licenses/by/4.0
Feeding Earthworms (Lumbricus rubellus) with Different Doses to Snakehead Fish (Channa striata) with Photoperiod Manipulation in Recirculation System
Penelitian ini dilaksanakan selama 60 hari yaitu dari bulan Desember 2023 sampai dengan Februari 2024 yang bertempat di Laboratorium Teknologi Budidaya, Fakultas perikanan dan Kelautan Universitas Riau. Tujuan dari penelitian ini adalah untuk mengetahui dosis pakan yang baik untuk menunjang pertumbuhan dan kelulushidupan ikan gabus (Channa striata) dengan manipulasi fotoperiod pada sistem resirkulasi. Metode yang digunakan dalam penelitian ini adalah metode eksperimen dengan rancangan percobaan Rancangan Acak Lengkap (RAL) dengan 4 taraf perlakuan dan 3 kali ulangan, sehingga diperlukan 12 unit percobaan. Dosis pakan yang digunakan dalam penelitian ini adalah sebagai berikut: P1) 3% dari berat biomassa; P2) 5% dari berat biomassa; P3) 7% dari berat biomassa; P4) 9% dari berat biomassa. Perlakuan terbaik diperoleh dari P4 yaitu dengan Dosis 9% dari berat biomassa dengan nilai bobot mutlak 6.57 g, Panjang mutlak 3,5 cm, laju pertumbuhan spesifik 2,12 %, efisiensi pakan 67,78 %, konversi pakan 1,48 kg. Kualitas air selama penelitian yaitu suhu 28,3-29,60C, pH 5,0-7,1, oksigen terlarut 6,0-8,6 mg/L, ammonia 0,0368-0,3930 mg/L
Copyright (c) 2025 Mai Liandro Pratama Syaputra, Rusliadi Rusliadi, Iskandar Putra (Author) https://creativecommons.org/licenses/by/4.0
Growth Performance and Survival Rate of Hemibagrus nemurus with Different Density in a Recirculation System
Asian redtail catfish (Hemibagrus nemurus) is one type of freshwater fish that is popular in Indonesia. Baung fish is still an important food source for local communities and has significant economic value in various regions in Indonesia. This study aims to determine the Growth and Survival Performance of Asian redtail catfish with Different Stocking Densities Given Probiotic “raja ikan” in Feed in Recirculation System. This study was conducted for 56 days starting from September to November 2024 in the aquaculture technology laboratory, Faculty of Fisheries and Marine, Universitas Riau. The method used in this study was an experimental method with a Completely Randomized Design (CRD) experimental design with 4 treatment levels and 3 replications, so that 12 experimental units were required. The treatments used in this study were as follows: P1) 10 fish; P2) 15 fish; P3) 20 fish; P 4) 25 fish. The results showed that different stocking densities had a significant effect (P <0.05) on the growth performance of catfish. The best different stocking densities were found at p4) 25 tails, which produced % absolute weight, growth of 7.88 grams, absolute length of 3.90 cm, specific growth rate of 2.30%, feed utilization efficiency of 45.83%, and survival rate of 99%
Copyright (c) 2025 Pipit Dwi Alfiani, Iskandar Putra, Niken Ayu Pamukas (Author) https://creativecommons.org/licenses/by/4.0
The Effect Recombinant Growth Hormone (rGH) Base on Different Age and Duration of Immersion on Growth and Survival Rate of Bonylip Barb Larvae (Osteochilus vittatus)
and Marine Faculty of Riau University. The research aim is to determine the effect of Recombinant Growth Hormone (rGH) with optimal doses based on different age and immersion duration on growth and survival rate of Bonylip Barb larvae. The method used was Completely Randomized Design Factorial with 2 factors. The first factor was larvae age with 3 levels, namely 5 days (U5), 7 days (U7) and 9 days (U9). The second factor is . the immersion time with 4 levels, namely 0 minutes (P0), 10 minutes (P10), 20 minutes (P20) and 30 minutes (P30). Larvae was kept for 40 days in an aquarium with a density of 2 fish/L. From the result of research showed that recombinant growth hormone (rGH) with different larvae age and immersion time affected the growth of Bonylip Barb absolute weight and length, specific growth rate, and also survival rate of larvae. The treatment of 9 days of larvae age (U5P30) showed the highest growth, namely absolute weight and 60 minutes immersion time showed the highest growth, namely absolute weight 1,08 g, absolute length 4,48 cm, specific growth rate of 16,10/day, and survival rate 94,43%. The parameter of water quality during the research was 26,5-27,8°C, pH 5,0-6,5, and dissolved oxygen 4,0-5,3 mg/L.
Copyright (c) 2023 https://creativecommons.org/licenses/by/4.0
Effect of Immersion Eggs using Viamin C on Hatching Rate, Growth, and Survival Rate of Asian Redtail Catfish Larvals (Hemibagrus nemurus)
This research was carried out for 40 days from December 2021 to January 2022 at the Fish Hatchery and Breeding Laboratory, Faculty of Fisheries and Marine, Riau University, Pekanbaru. This study aimed to find out the effect of immersion eggs with different doses of vitamin C on egg hatchability, growth, and survival of Asian redtail catfish larvae and to find out the best dose of vitamin C for immersion Asian redtail catfish eggs. This study used a one-factor completely randomized design with four treatments with three replications. The treatments used were P0 (control), P1 using vitamin C 50 mg/L, P2 using vitamin C 100 mg/L and P3 using vitamin C 150 mg/L. Immersion Asian redtail catfish eggs using different doses of vitamin C had a significantly different effect (P<0.05) on the degree of fertilization, hatching rate, weight growth, length growth, specific growth rate, and survival rate of Asian redtail catfish larvae. The best dose of vitamin C for immersion Asian redtail catfish eggs is a dose of 150 mg/L with of 93.18% degree of fertilization, hatching rate of 86.24% absolute weight growth of 2.25 g, absolute length growth of 6.32 cm, the specific growth rate is 10.08% and the survival rate is 91.11%. The range of water quality obtained during the research supports hatching and rearing of Asian redtail catfish larvae, the temperature range is between 26.5 C to 27 C, water pH is 5.9 to 7 and dissolved oxygen is 4.9 to 6.
The Effect of Soaking Jambal Siam Fish (Pangasianodon hypophthalmus) In Pineapple Peel (Ananas comosus) Solution On Leukocyte Image
This research was carried out in July 2021 – September 2021 at the Laboratory of Parasites and Fish Diseases. This study aims to obtain the best dose of pineapple peel solution. This study used a Complete Randomized Design (RAL) consisting of 5 treatments and 3 tests. The treatment in this study was that there was an influence where the best treatment was found in P2 (Soaking of pineapple skin solution dose 1,800 ppm tested challenged with A. hydrophila bacteria) with an average total leukocytes of 9.92 x 104 cells / mm3, total lymphocytes 82.67%, total monocytes 9.33%, neutrophy value 8.00% phagocytic value 37.00%, siamese jambal fish dilution classified as good with a value of 93.33%, and water quality during the study temperatures ranged from 27.3–29oC,, pH 6.3–6.6, DO 3.4–4.2 mg/L, and NH3 0.01-0.02 mg/L.
Climbing Perch (Anabas testusdineus) Culture With Aquasimber System Fed With The Addition Of Bromelain Enzyme
This study aims to determine the best dose of bromelain enzyme to increasing the growth rate and survival rate of climbing perch reared with aquasimber system. The research was conducted on January 1 to February 10, 2022 at the Aquaculture Hatchery, Faculty of Fisheries and Marine Affairs, Riau University. The research method is a Completely Randomized Design (CRD) with one factor, five treatments and three repetitions. And the use of a 100 L volume bucket container. The treatment levels applied in this study were P0 (control), P1 5 g/kg feed, P2 10 g/kg feed, P3 15 g/kg feed, P4 20 g/kg feed. The results showed that the difference in bromelain enzyme doses had a significant effect (P<0.05) on the growth and survival of climbing perch. The best treatment was obtained at P3 15 g/kg with temperature (28.2-29.30C), pH 6.4-7.3, DO (6.6-7.9 mg/L) , and level of NH3 (0.0010-0.0045 mg/L), absolute weight growth (3.98 g), absolute length growth (3.53 cm), specific growth rate (1.80%), feed efficiency (41.12%) , feed conversion(2.43%), survival (100%), content of enzyme bromelain (0.19 IU/mL)
Differentiation of Leukocytes of Dumbo Catfish (Clarias gariepinus) Infected with Aeromonas hydrophila and Treated with Bay Leaf Solution (Syzygium polyantha)
The research was conducted from January to October 2021 at the Laboratory of Fish Parasites and Diseases, Departement of Aquaculture, Faculty of Fisheries and Marine, University of Riau. The purpose of this research was to analyze and obtain the best dose of bay leaf solution to treat catfish (Clarias gariepinus) infected with Aeromonas hydrophilla. Bay leaf is a plant that has antibacterial properties in fish because it contains secondary metabolites, namely tannins, saponins, steroids, alkaloids, flavonoids, and essential oils. The method used is an experimental method with a Completely Randomized Design (CRD), one factor with five treatments. The treatment applied is Kn (without immersed with bay leaf solution and not infected by A. hydrophila), Kp (without immersed with bay leaf solution and infected by A. hydrophila), P1 (1000 ppm), P2 (1100 ppm), P3 (1200 ppm). The curing is done by immersed with bay leaf solution for 5 minutes, carried out three times with an interval of 24 hours and then maintained for 14 days after treatment. The result shown that bay leaf solution able to cure catfish infected by A. hydrophila. The best dose was 1200 ppm with average total leukocytes of 12.61 × 104 cells /mm3, leukocyte differentiation (lymphocytes 84.66%, Neutrophils 6.66%, Monocytes 8.66%), phagocytitosis activity is 35.33%, and the survival rate 96.67%.
Identification of Clinostomum sp. Parasites In Swamp Sepat Fish (Trichogaster trichopterus) In FAPERIKA DAM, Pekanbaru
Parasites are organisms that live on other organisms that can benefit from the symbiosis, while the host is harmed. This research was conducted from March to Mei 2022 at the Laboratory of Fish Parasites and Diseases, Department of Aquaculture, Faculty of Fisheries and Marine. Trichogaster trichopterus sampling was carried out Feperika Dam, Pekanbaru. The aim of the study was to obtain the prevalence and intensity of the parasite Clinostomum sp. which infects the swamp fish (Trichogaster trichopterus) in Faperika Dam, Pekanbaru. The method used is a survey method and direct observation of the sample. Sampling was carried out three times with sampling points consisting of 3 places, namely: Location 1 is at the entrance of the reservoir, locations 2 and 3 are located to the west and north of location 1 with a distance of each location 50 meters. The results of the identification showed that the sample of bog fish infected with trematode parasites was Clinostomum sp. with prevalence ranging from 93.9-100%, prevalence in locations 1 and 2 (100%), and intensity for each location, namely, at location 1 at 36.9 ind/bird, location 2 at 41.3 ind and location 3 is 34.3 ind.
Use of Rubber Trees (Havea brasiliensis) Tube Fermentated by using Rumen Cow in feed for Growth of Asian Redtail Catfish (Hemibagrus nemurus)
This research was conducted at the Fish Nutrition Laboratory and Experimental Reservoir of the Faculty of Fisheries and Marine, University of Riau which was carried out from June to August 2021. This study aims to determine the effect of the use of rubber seed flour which is fermented using cow rumen fluid for the growth of tropical catfish (Hemibagrus nemurus) fry. This study used a Complete Randomized Design (RAL) with 5 levels of treatment and 3 repeats. The tropical catfish fry used had an average weight of 0.67 ± 0.07 g. Test fish were put into the cage am with a stocking density of 25 heads. The test feed used is in the form of pellet with a protein content of 37.71-38.92%. The treatment in this study was in the form of the use of fermented rubber seed flour in the feed by 0.5, 10, 15, 20%. Test feed is given as much as 10% of the weight of biomass with a frequency of feeding 3 times a day, feeding is carried out for 56 days. To measure the digestibility of fish feed, feed is given containing Cr2O3 as much as 0.5% of the amount of feed. Test fish weighing 0.67 ± 0.07 g are introduced into the aquarium with a stocking density of 10 heads. After feeding, fish feces are collected and dried to measure cr 2O3 levels and their proteins. The results of this study showed that the best treatment was found in P2, the use of 35% fermented rubber seed flour which resulted in 77.27% feed digestibility, 82.64% protein digestibility, 53.59% feed efficiency, 30.53% protein retention, 4.14% specific growth rate and 98.66% dilution.
The Effect of Kirinyuh Leaf (Euphatorium odoratum) Solvent with Different Doses on Hatching Rate of Tambaqui Larvae (Colossoma macropomum)
This research was conducted on April - May 2021, at Fish Hatchery and Breeding Laboratory of Fishery and Marine Science Faculty of Riau University. The aim of this research was to determine the effect of Kirinyuh leaf (Euphatorium odoratum) solvent and the optimal dose on hatching rate of tambaqui larvae (Colossoma macropomum). The method used was a Completely Randomized Design Factorial with 4 treatments and 3 replications. The dose of kirinyuh leaf solvent used was P0 (0 mg/L) P1 (100 mg/L) P2 (120 mg/L) and P3 (140 mg/L). rGH with 3 levels; 0 mg/L (D0), 1.5 mg/L (D1,5) and 2.5 mg/L (D2,5). The immersion duration of kirinyuh leaf solvent is 20 minutes with 100 eggs for the density. The results showed that the use of different doses of kirinyuh leaf solvent gave very real effect to fertilization rate with highiest point (87,33%) following with hatching rate (88,00%), and survival rate (83,66%).
Red Blood Profile Of Monopterus Albus Preserved In Multitesely Systems With Different Stock Densities
Biofloc is a technology using good bacteria to convert organic waste to be food source by fish in the form of floc. This research was carried out in April-May 2021 in the Hatchery and blood observations at the Fish Disease and Parasite Laboratory, Faculty of Fisheries and Marine, University of Riau. The purpose of this study was to determine the health status of eels from the profile of erythrocytes cells and the best stocking density of eels cultivated in biofloc system. While the benefits of this study can be applied to biofloc cultivation and apply it in the field. The research method used one-factor completely randomized design (CRD) with four treatment levels and three replications (12 experimental units) for 40 days . The optimal stocking density of eels in clean water is 6 fish for 10 liters. The treatments in this study were P1: stocking density of 10 fish/25 L, P2: stocking density of 20 fish/25 L, P3: stocking density of 30 fish/25 L, P4: stocking density of 40 fish/25 L. The results showed that the erythrocytes profile of eel with different stocking densities had a significant effect (P<0.05) and the best treatment P3 (30 fish/25 L) with total erythrocytes 2.88x106 cells/mm3, hematocrit level 31.66 %, hemoglobin levels 17.40 g/dL, blood glucose 46.33 g/dL, specific growth rate 93.3%, and feed efficiency 67.46%. Water quality in this study was in normal range, that is temperature 25.7-27.3 oC, pH 7.0-7.8, DO 6.4-8.0 mg/L, and NH3 0.0003-0.00038 mg/L
Effect of Addition of Probiotics with Different Doses in Commercial Feeds on Growth and Life Passage of Baung Fish (Hemibagrus nemurus) in Aquaponic Recirculation Systems
This research was carried out in April 2022 - May 2022 which took place at the Aquaculture Technology Hatchery. The purpose of the study was to determine the best probiotic bioflocculant dose in feed to increase growth and survival of baung fish. This study used a completely randomized design (CRD) consisting of 4 treatments and 3 replications. The treatment in this study was the addition of probiotic bioflocculants to commercial feed, namely P0 control (without adding probiotics), P1 (5 ml/kg feed), P2 (10 ml/kg feed), P3 (15 ml/kg feed). The results showed that the addition of a probiotic bioflocculant 15 ml/kg of feed was the best result which resulted in an absolute weight growth of 4.04 g, an absolute length growth of 3.17 cm, a specific growth rate of 2.65%, and a survival rate of 97.61%. Water quality parameters during the study were temperature 26-27 0C, pH 6-7 ppm, DO 4.12-5.57 mg/L.
The Effect of Fermentor Dosage on Tofu Dregs as Tubifex sp. Culture Media on Population and Biomass
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.
Utilization of Alocasia macrorrhiza Fermented Using Kombucha in Feed for the Growth of Asian Redtail Catfish (Hemibagrus nemurus)
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.
Effect of Papain Enzyme With Different Dosages in Feed On Growth and Survival Rates of Climbing Perch Fish (Anabas testudineus) in Recirculation System
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.
Effect Of Different Stock Densities On Growth And Lifetime Of Red Tilapia (Oreochromis niloticus) That Are Maintained By Bioflok Technology
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.
The Effect of Dosing of Goat Manure sludge and Rice Bran on Several Water Quality Parameters in Daphnia magna culture Media
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