Leptobarbus Hoevenii Research Articles

Aquaponics Vs. Recirculating Aquaculture System: Assessing Productivity and Water Use Efficiency of Native Fish Species Empurau (Tor tambroides) and Jelawat (Leptobarbus hoevenii) Compared to Red Hybrid Tilapia

A 3 × 2 (fish species × culture system) factorial design experiment was conducted to compare productivity of empurau (Tor tambroides), jelawat (Leptobarbus hoevenii) and red hybrid tilapia (Oreochromis sp., control) cultured in recirculating aquaculture system (RAS) and aquaponics system. Growth performance, feed conversion ratio (FCR) and survival rate of fish were evaluated, and water quality of all tanks throughout the 70-days experiment was determined. In the present study, FCR of tilapia, empurau and jelawat tended to be lower in aquaponics than RAS, while no significant differences (P>0.05) on weight gain (WG) and specific growth rate (SGR) between RAS and aquaponics for each fish species were observed. Although tilapia had significantly higher WG and SGR, and lower FCR compare to empurau and jelawat, the survival rate of empurau and jelawat were higher than tilapia, regardless of the culture system. Between empurau and jelawat, better growth performance was observed in aquaponics than in RAS. Significantly higher (p<0.05) ammonia and nitrite concentrations were shown in RAS tanks as compared to aquaponics tanks, regardless of the fish species. Jelawat might have wide range tolerance to ammonia as no mortality in both RAS and aquaponics, while tilapia and empurau had higher survival rate in aquaponics than RAS. In summary, aquaponics appears to be a viable approach to enrich variety and improve fish production in an environmentally responsible manner. Therefore, it is plausible to advocate for the use of aquaponics as a sustainable methods of farming native fish species in Malaysia.

Production performance and physiological responses of jelawat fish (Leptobarbus hoevenii) breeding maintained in different containers

Jelawat fish cultivation activities are still experiencing problems with low production. In order to increase the production of jelawat fish seeds during the grow-out phase, research needs to be carried out regarding the type of containers for the cultivation. This research aims to determine the best type of container for jelawat fish (Leptobarbus hoevenii) breeding regarding production performance and physiological responses. This study used a completely randomized design with four different treatments in rearing containers and three replications including aquarium (A), fiber tanks (B), concrete tanks (C) and floating net cages (D). The fish seeds used in this study were 2.76 ± 0.15 cm long and weighed 0.17 ± 0.17 g. During breeding process, the fish were given commercial feed with a protein content of 41% and air changes were carried out at 30% of the total air volume every 2 days. The parameters observed in this research include production performance, physiological responses, and air quality. The research results showed that different types of rearing containers had a significant effect on production performance parameters, total cholesterol, and hemoglobin. Total cholesterol and hemoglobin at the start of cultivation were 191 mg/dL and 11.6 g/dL, decreasing at the end of cultivation to 120.28-141.59 mg/dL and 9.03-12.83 g/dL. Air quality was still within the appropriate range for rearing jelawat fish seeds.Keywords:Aquariumsconcrete tanksfloating net cagestarpaulin pondsjelawat fish

Hoven’s carp Leptobarbus hoevenii strategized metabolism needs to cope with changing environment

Current water warming and freshwater acidification undoubtedly affect the life of aquatic animals especially ammonotelic teleost by altering their physiological responses. The effect of temperature (28 °C vs 32 °C) and pH (7 vs. 5) on the metabolic compromising strategies of Hoven's carp (Leptobarbus hoevenii) was investigated in this study. Fishes were conditioned to (i) 28 °C + pH 7 (N28°C); (ii) 32 °C + pH 7 (N32°C); (iii) 28 °C + pH 5 (L28°C) and (iv) 32 °C + pH 5 (L32°C) for 20 days followed by osmorespiration assay. Results showed that feeding performance of Hoven's carp was significantly depressed when exposed to low pH conditions (L28°C and L32°C). However, by exposed Hoven's carp to L32°C induced high metabolic oxygen intake and ammonia excretion to about 2x-folds higher compared to the control group. As for energy mobilization, Hoven's carp mobilized liver and muscle protein under L28°C condition. Whereas under high temperature in both pH, Hoven's carp had the tendency to reserve energy in both of liver and muscle. The findings of this study revealed that Hoven's carp is sensitive to lower water pH and high temperature, thereby they remodeled their physiological needs to cope with the environmental changes condition.

Disgestive enzyme profile of jelawat fish larvae (Leptobarbus hoevenii, Bleeker 1851)

The ability of fish larvae to digest the appropriate type of feed can be seen through enzymatic activity. The digestive tract contains active enzymes including amylase, lipase and protease. This research was conducted at the Fish Hatchery and Breeding Laboratory, Faculty of Fisheries and Marine, Riau University and sample analysis at the Nutrition Laboratory, Bogor Agricultural Institute. The research aims to evaluate the ability of jelawat fish larvae (Leptobarbus hoevenii) to digest external feed through digestive enzymes. Newly hatched larvae are reared in fiber tanks measuring 2x1x0.5m with a density of 10,000 individuals, volume 1000 L. In rearing containers, larvae from 2 to 6 days old are given artemia food, starting from 7 days old they are given artificial F0 food. Feed was given twice a day in the morning and evening ad libitum. Observations were made on 0 day old larvae (D-0), (D-1) – (D-4), (D-6) and (D-8). Observation of protease, amylase and lipase enzyme profiles was carried out by sampling 1 gram of larvae. The results of observations on the activity of amylase, lipase and protease enzymes in jelawat fish were positively correlated with larval growth. Digestive enzyme activity increases when the larvae receive food from outside the body.

Laju pertumbuhan benih ikan jelawat (Leptobarbus hoevenii Blkr.) dengan pemberian pakan berbasis tepung maggot

Hoven’s carp or the mad barb (Leptobarbus hoevenii Blkr.) is a species of local fish with slow growth. Maggot is a phase of the insect life cycle that can be developed as feed. Maggot in the form of flour is known to have a high protein content which can stimulate fish growth. This study aims to determine the growth rate of specific length (LPPS), growth rate of specific weight (LPBS), and the survival rate of jelawat fish juvenille treated with control feed (A), feed based on unfermented maggot flour (B) and feed based on fermented maggot flour (C). Based on the results, jelawat fish juvenille have the highest LPPS 0.88±0.04% and the highest LPBS 0.71±0.01% and the juvenille survival rate was 100% in treatment C, followed by treatment B with 0,49±0,04% of LPPS and 0.39±0.01% of LPBS and 95% of juvenille survival rate. The lowest growth was experienced by juvenille on control feed treatment (A) with 0.38%±0.01 of LPPS, 0.28±0.01% of LPBS, and 75% of juvenille survival rate. Based on this, the use of fermented maggot flour in feed has a significant effect on the growth rate of jelawat fish juvenille%.

EFEKTIVITAS EKSTRAK BIJI PEPAYA (Carica papaya) TERHADAP KESEMBUHAN DAN KELANGSUNGAN HIDUP IKAN JELAWAT (Leptobarbus hoevenii) YANG DIINFEKSI BAKTERI Aeromonas hydrophila

Jelawat fish (Leptobarbus hoevenii) are found in several rivers in Kalimantan and Sumatra. Often encountered obstacles in fish farming is the bacterial disease Aeromonas hydrophila, known as Motile Aeromonas Septicemia (MAS). Treatment of disease can use natural ingredients that function as antimicrobials. Papaya seeds contain antimicrobials; besides that, they also contain secondary metabolites such as phenols, terpenoids, alkaloids, and saponins. The terpenoid group is the main component of papaya seeds and has antibacterial activity. This study aims to determine the effectiveness of the best papaya seed extract on the survival of jelawat fish infected with Aeromonas hydrophila bacteria. The treatment in this study used a completely randomized design (CRD) with 4 treatments and 3 replications. The treatments were treatment A (soaking with papaya seed extract at 0 ppm), treatment B (soaking with papaya seed extract at 40 ppm), treatment C (soaking with papaya seed extract at 80 ppm), and treatment D (soaking with papaya seed extract at 120 ppm). The results showed that the administration of papaya seed extract by immersion had a significant effect on the response to high feeding, with an average absolute weight growth value of 1.33 grams, a 100% survival rate, and wound healing in sharks infected with A. hydrophila bacteria starting to normalize or heal. Meanwhile, the water quality observed during the study was quite supportive for the survival of the jelawat, with temperatures ranging from 27–28, dissolved oxygen (DO) ranging from 7-8.7 mg/L, pH ranging from 6.5 to 7.3, and ammonia values from 0.1–0.3 mg/L. Giving 80 ppm through soaking papaya seed extract with jelawat fish is the best.

The Efficiency of Indigofera Leaves Meal Hydrolysate Utilization on Growth Performance of Leptobarbus hoevenii

This study was conducted to evaluate the efficacy of indigofera leaves meal hydrolysate (ILMH) on growth Leptobarbus hoevenii growth. This study employed five dietary treatments with varying levels of ILMH. Cellulase enzymes were used to hydrolyze Indigofera leaf meal, which was then combined with other feed ingredients. Three replicates of feed without ILMH, 10% ILMH, 20% ILMH, 30% ILMH, and 35% ILMH were included in the treatment-examination feed. Average initial fish weight was 1.27±0.01 g, and initial length was 4.28±0.07 cm. Weight observation was also conducted every two weeks. After six weeks of rearing, survival, final biomass, specific growth rate, and feed efficiency were observed. At the beginning and the end of maintenance, temperature, pH, and dissolved oxygen measurements were taken to determine the water's quality. Results that that the utilization of ILMH in L. hoevenii feed could substitute the use of soybean meal for 10-35% of the feed. Among all treatments, 10% ILMH-containing feed resulted in the highest growth and feed efficiency. This treatment had a 100% survival rate, a 1.78±0.05% specific growth rate, and a 53.28 ± 1.59% feed efficiency. According to the findings of this study, the utilization of 10% hydrolysate of indigofera leaf meal in feed was effective in enhancing L. hoevenii’s growth performance. Keywords: Efficiency, indigofera leaves, Leptobarbus hoevenii, hydrolysate, growth

Pemanfaatan Cangkang Kerang Darah (Anadara granosa) Sebagai Filter Terhadap Kinerja Produksi dan Respons Fisiologi Benih Ikan Jelawat (Leptobarbus hoeveniii Blkr)

This study aims to determine the best shell particle size as a filter for recirculation systems in the rearing of barramundi (Leptobarbus hoevenii, Blkr) on production performance and physiological response. The study was conducted using an environmental design in a completely randomized design with 4 treatments and 3 replications, including treatment of without the addition of blood clam shells (A), size of the blood clam shell is 1 mm (B), size of the blood clam shell is 2 mm (C) and size of the blood clam shell is 1 mm 3 mm (D). The fish used in this study were the fingerlings of 2 ± 0.2 inches in size. The research results show that survival rates for all treatments ranged from 81.19% - 84.52%, specific weight growth rates for all treatments ranged from 4.01%/day - 4.24%/day, absolute length growth for all treatments ranged from 1.53 cm - 1.84 cm, absolute weight growth for all treatments ranged from 0.95 g - 1.08 g, feed conversion ratio for all treatments ranged from 2.51 - 2.98 and the coefficient of variation in final weight for all treatments ranged from 20.69 % - 24.84 %. Blood glucose values at the end of the maintenance period ranged from 56.67 mg/dL – 95.67 mg/dL. The results of the analysis of the water quality of the rearing medium show that the water quality is still in the feasible range for the maintenance of barnet fish

Evaluation on Fecundity of Jelawat (Leptobarbus hoevenii, Bleeker 1851) Cultured in Floating Net Cages in Swampy Pond, Jambi

The economic importance of riverine fish species of jelawat (Leptobarbus hoevenii) has been traditionally cultured. The culture development requires the availability of fish fry from hatcheries in sufficient quantities. Estimation of the fry production requires data and information on its fecundity. A study was carried out to evaluate the fecundity of jelawat cultured in floating net cages set in a pond, Jambi. The broodfish used in the study were selected from grown-out ponds. Selection of matured egg female fish was carried out monthly. The matured gonadal female fish was weighed and injected using a 0.7 mL/kg commercial hormone. The eggs were stripped and weighed. Egg samples were taken out as a subject of weight measurement per g. The results showed that the broodfish’s length and weight ranged from 47.0-60.0 cm (57.6 cm ± 3.30) and 1500-4500 g (3100 g ± 0.71), respectively. Fecundity tended to increase with increasing total length and weight of the fish, respectively. The average egg somatic index value was 11.04% ± 1.92. One gram of fish eggs consisted of 590 eggs ± 29.51. The number of eggs of the females ranged from 32 103 - 96 557 per kg.

Role of the Plant Morinda citrifolia L. in Management of Diseases in Fish Cultured: A Mini-review

Production failure in fish farming activities, one of which is caused by disease. So the prevention of disease needs to be done by using environment friendly technology. Disease control efforts can be carried out through preventive and curative measures. Preventive measures can be taken by increasing the immunity of fish. The use of herbal ingredients is relatively safe for fish and the environment to be used as a source of drugs or immunostimulants. Morinda citrifolia is one of the medicinal plants that contains various types of active ingredients that are antibacterial and immunostimulant, including alkaloids, flavonoids, tannins, saponins, steroids, phenols and terpenoids, glycosides, carbohydrates, coumarine and scopoletin. Therefore, M. citrifolia, both the fruit and the leaves, can be used for treatment and prevention of diseases that attack cultured fish. The purpose of writing this article is to describe several research results that prove the ability of parts of the noni plant, namely the leaves and fruit to be used as drugs or immunostimulants as an effort to control diseases in cultured fish. Several studies have shown that noni plays a role in overcoming diseases that infect cultured fish, both for treatment and prevention. The parts of M. citrifolia plant used are the leaves and fruit in various dosage forms, namely extract, flour and juice. The types of diseases that can be cured are bacterial diseases caused by Aeromonas hydrophila that infect Leptobarbus hoevenii, Cyprinus carpio, Barbonymus gonionotus, Carassius auratus and Oreochromis niloticus fish and parasitic diseases caused by Argulus sp., Lernaea sp. and Trichodina sp. Several types of fish, namely Cyprinus carpio, Oreochromis niloticus and Penaeus monodon increased body resistance after being treated with M. citrifolia, which was indicated by an increase in the number of leukocytes, an increase in total phagocytic activity and high survival after being challenged with pathogenic organisms.

Effects of Moina sp. [Straus, 1820] adding of Snail Flour to Increase the Larvae performance of Jelawat Fish (Leptobarbus hoevenii [Bleeker, 1851

Enrichment is the process of adding an ingredient aiming to compliment and increase the nutrient feed. Potential snail flour served as a media enriched in Moina sp. because it has a high nutrient content. The objective of the study was to assess the provision of Moina sp. enriched with golden snail flour to the growth and survival of larvae of jelawat fish (Leptobarbus hoevenii). This research was conducted at Sungai Gelam Freshwater Aquaculture Center, Jambi and Faculty of Agriculture, University of Lampung. The research design was a complete randomized design (RAL) with 4 different treatments of golden snail flour doses, namely A (control), B (4 g/l), C (8 g/l), D (12 g/l), with 3 repetitions. Data absolute length growth, absolute weight growth, and survival rate were analyzed using the Anova test and continued with the BNT test. The results showed that the application of Moina sp enriched with golden snail meal 4 g/l and 8 g/l had a significant effect on long growth and weight but had no significant effect on the survival rate of jelawat fish.

Sense organs development in larvae of the Sultan fish Leptobarbus hoevenii

Sense organs development in larvae of the Sultan fish Leptobarbus hoevenii

Dietary protein level influenced reproductive development of hoven’s carp Leptobarbus hoevenii female broodstock

The present study demonstrates the effects of varying dietary protein levels on reproductive indices, energy deposition, steroid hormones and oocyte status of hoven’s carp Leptobarbus hoevenii female broodstock. Eighty-one broodstock (1.86 ± 0.02 kg) were randomly distributed into nine tanks representing three dietary treatments; 350 g/kg (P35), 400 g/kg (P40) and 450 g/kg (P45) in triplicates. Feeding was conducted to apparent satiation for eight months. Results revealed an increased gonadosomatic index, fecundity, oocyte diameter and condition factor in fish fed P40, followed by P35 and P45, but had no effects on thehepatosomatic index, intraperitoneal fat, viscerosomatic index and oocyte weight. Dietary protein levels did not affect protein, lipid, glycogen and total energy in fish muscle. Conversely, protein and total energy were elevated in oocytes of fish fed P40 corresponded to the decrease in protein, lipid and total energy in the liver. Estradiol was detected higher in fish fed P40 and P35 compared to P45. Histological examination of oocytes revealed vitellogenic stage for fish fed P35, completion of vitellogenic stage and early maturation for fish fed P40 and hydration stage for fish fed P45. The present study suggests that 400 g/kg dietary protein provides generally better reproductive development of hoven’s carp female broodstock in captive conditions.

Reproductive Characteristics of the Pond-Farmed Sultan Fish (Leptobarbus hoevenii)

Highlight ResearchThe reproductive characteristics of L. hoevenii were examinedThe potentially smallest maturity sizes of female and male L. hoevenii were 350 g and 180 g, respectivelyThe fecundity of a 1,000 g L. hoevenii can be more than 100,000 eggsL. hoevenii was determined as a multiple spawnerAbstractSultan fish (Leptobarbus hoevenii) is a high value freshwater fish, cultured in some Southeast Asian countries, including Malaysia and Thailand. However, information on its reproductive characteristics is very scarce. This study examined the gonadosomatic index (GSI), fecundity, egg diameter, and determined whether L. hoevenii is a single- or multiple-spawner. Twenty male and female pond-farmed L. hoevenii broodstock were obtained to measure their total length (TL), body weight (BW) and gonad weight to calculate the GSI. Ten females were randomly sampled from the 20 to determine their fecundity. A total of 1,500 eggs were sampled from each female. The egg diameter was measured then its frequency distribution was analyzed to detect the number of egg class group, and to determine whether L. hoevenii is a single- or multiple spawner. The female L. hoevenii examined were 32.2-47.1 cm and 350-1,200 g, while the males were 30.7-45.8 cm and 180-970 g in TL and BW, respectively. All female specimens contained gonads. The potentially smallest mature samples were recorded at 350 g (female) and 180 g (male). GSI for the female and male L. hoevenii were 1.81-12.28 % and 1.03-5.09 %, respectively. The fecundity was 35,467 -128,067 eggs, while the highest fecundity was observed in a 1,000 g fish. The observed egg diameter ranged from 500 to 1,855 μm. Two to five groups of egg class were detected, indicating that L. hoevenii is a multiple spawner.

Hubungan Panjang Berat Dan Faktor Kondisi Relatif Lima Spesies Ikan di Sungai Suwi Muara Ancalong, Kutai Timur

The length-weight relationship of fish and the condition factor provides an overview of the fish growth conditions in the river. The purpose of this study was to determine the length-weight relationship and factor condition of five fish species in the Suwi River wetlands. The method of catching fish used gill nets, ceiling nets, fishing rods, traps, and other nets. The research was conducted for to months in the Suwi river wetlands. The results the length-weight relationship of five fish were varied, Ompok bimaculatus had b value 2,93, Helostoma temminckii (b value 2.15), Mystus nemurus (b value 2,62), and Channa) micropeltes (b 2.61) which indicated a negative allometric growth pattern. Meanwhile Leptobarbus hoevenii (b 3.12) was a positive allometric growth pattern. Negative allometric indicates growth in length faster than weight growth, thus the physical shape looks flattened, while positive allometric indicates growth in fish length slower than growth in fish weight. Based on the relative weight (Wr) of Ompok bimaculatus 101.28 ± 19.13, Helostoma temminckii 101.05 ± 15.51, Mystus nemurus 100.95 ± 14.84, Channa micropeltes 101.09 ± 14.14, Leptobarbus hoevenii 103.71 ± 34.57. Condition factor above 100, indicates sufficient food availability or low predator density

Study Identification of Some Species of Fish Using the Partial Fragment of Mitochondrial Cytochrome Oxidase Subunit-1Gene (COI) in Danau Panggang, South Borneo

Danau Panggang is a unique habitat for fish species used for food and economic purposes that live in it. This study aims to identify several important and endangered fish species in Danau Panggang using the DNA sequence method and water quality in Danau Panggang. The DNA sequence was then aligned with the RefSeq from the GenBank data library by using the BLAST program of NCBI to find the closest identity associated with several types of fish samples being analyzed. The sequence analysis of the DNA show that some fish species analyzed have specific identifications :Trichopodus pectoralis, Phalacronotus apogon, Belodontichthys dinema, Anabas testudineus, and Leptobarbus hoevenii. Based on the results of the phylogenetic tree, it is also found that the relationship between fish taxons in flooded swamps of Danau Panggang is close to one another.

Length-weight relationship and relative condition factor of the Sultan fish, Leptobarbus hoevenii broodstock farmed in earthen ponds

Length-weight relationship and relative condition factor of the Sultan fish, Leptobarbus hoevenii broodstock farmed in earthen ponds

Feeding appropriate formulated diet for improving gonad maturation and spawning of brooder of some native fishes of indonesia

More than 1200 native Indonesian fish species inhabiting Indonesian inland waters have been used as human daily fish consumption. It brings to decline their population and even its species by year. Efforts of spawning some native fish species have been conducted, but the successful spawning limited during the rainy season. This paper, therefore, reviews the results of research related to using appropriate formulated diets for gonadal maturation and spawning some economically important native fishes. The tested fishes used were hoven’s carp (Leptobarbus hoevenii), knife-fish (Chitala lopis), Asian red-tail catfish (Hemibagrus nemurus), kissing gourami (Helostoma temmincki), snake-head (Channa striata), and hard- lipped barb (Osteochilus hasselti), This study showed that in general, formulated diet containing about 35% protein fed on these species resulted in gonad maturation whole year and successfully spawned under controlled hatchery. The larvae survived at a high rate after feeding a natural diet up to 30 day-age. Mass production of the juvenile could support the development of its culture and be used as restocking in inland open-waters as well.

Checklist of Fishes at Pergau Lake, Jeli, Kelantan, Malaysia.

A survey was conducted to determine the diversity of fish in Pergau Lake, Jeli, Kelantan, Malaysia from 2 September to 18 October of 2016. Fish samples were collected at seven random sampling stations around the lake by using setting trap method. The collected samples were preserved in 10% formalin solution and delivered to the laboratory for further identification process. Fourteen species, namely as Hemibagrus nemurus, Hampala macrolepidota, Clarias batrachus, Channa striata, Cyprinus carpio, Poropuntius smedleyi, Pangasius sp., Oreochromis niloticus, Oreochromis mossambicus, Leptobarbus hoevenii, Neolissochilus hexagonolepis, Tor tambroides, Osteochilus hasselti and Neolissochilus soroides, comprising of six families were collected during this study. From this study, family of Cyprinidae was the dominant species in Pergau Lake with exactly 50% of catch percentage, followed by family of Bagridae (29%), Cichlidae (10%), Clariidae (5%), Channidae (3%) and Pangasiidae (3%). This study shows that there is still a diversity of fish species in Pergau Lake, showing that the water and its environmental condition is very good.

Effect of different levels of fermented rice bran for the growth of jelawat, Leptobarbus hoevenii

Yanto H , Junianto , Rostika R, Andriani Y, Tanuwiria UH. 2018. Effect of different levels of fermented rice bran for the growth of jelawat, Leptobarbus hoevenii. Nusantara Bioscience 10: 81-86. The prime objective of this study is to find the optimum level of fermented rice bran in diets beneficial to improve the digestive enzyme activity, growth and feed efficiency for jelawat (Leptobarbus hoevenii Bleeker). Different levels of fermented rice bran in the diets, i.e., A1 (10%), A2 (20%), A3 (30%), A4 (40%), and A5 (10% non-fermented rice bran), as well as A6 (10% commercial diet) was designed as a treatments during the study. The experimental diets with the same protein (isonitrogenous) and energy (isocaloric) were fed to jelawat fingerlings with an average of 32.57±0.15 g per fish. The results showed that amylase activities were significantly increased with the increased level of fermented rice bran levels in the diets and it was significantly different among the treatments (P<0,05). Proteins and lipids contents of the body and their retention rate, daily growth rates, and feed efficiencies were also significantly different among the treatments (P<0.05). It was concluded from the present investigation that up to 30% of fermented rice bran in the diet was best for jelawat with an optimum level of 25.66-26.78% for the growth performance and feed efficiency of jelawat.