e-Jurnal Rekayasa dan Teknologi Budidaya Perairan
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EFFECT OF DIFFERENT LEVEL OF PROTEIN ON GROWTH PERFORMANCE, SURVIVAL RATE, DIGESTIVE ENZYME, AND BODY PROTEIN COMPOSITION OF JUVENILE BESENG-BESENG FISH (Marosatherina ladigesi)
Full text linkMarosatherina ladigesi’s original habitat is in the freshwater of South Sulawesi as endemic fish in the wallacea zone Indonesia, with a local name called beseng-beseng fish. M.ladigesi was already in the category of at threat of extinction.The purpose of this study was to investigate the effect of different protein levels on survival rate, growth performance, body protein composition and enzyme activity of protease, lipase and amylase of beseng-beseng fish. The research method was using Completely Randomized Design with three treatments and three replications. Treatment of the study: protein content of feed A: 40%, B: 50% and C: 60%. Fish maintenance takes 90 days. The results showed that protein content had a significant effect (P<0,05) on absolute body growth, specific growt rate, survival rate, body protein composition and protease enzyme activity of juvenile beseng-beseng fish. The best growth performance is obtained at 50% and 60% protein content, while the survival and body protein composition and the best protease enzyme activity at 60% protein content
THE EFFECT OF ADDITION OF CANTHAXANTHIN IN FEED TO INCREASE THE VISUAL VIEW OF COMET FISH, Carassius auratus (Linnaeus, 1758)
Full text linkOne effort made to improve the color quality of comet fish is to add canthaxanthin. Canthaxanthin is a red-orange pigment found in plants, fungi, bacteria, crustaceans, sea trout, and algae. This study aims to determine the optimum dose of canthaxanthin given in feed to improve comet fish' color quality. This research is also expected to be beneficial for fish farmers related to the use of canthaxanthin to improve comet fish' color quality. This study used 5 treatments with 3 replications. This research was conducted in April-June 2019 at the Aquaculture Laboratory, Department of Fisheries and Marines, University of Lampung. The parameters observed were color measurement using the Red Blue Green (RGB) method, converted into the Hue Saturation Brightness (HSB) value, color measurement by the scoring method, and water quality. The addition of canthaxanthin in diets with different doses showed the highest results in treatment C (P <0.05) on comet fish visual appearance. The results showed that the best dose in this study was the addition of canthaxanthin as much as 125 mg/kg of feed
FEED ENRICHMENT WITH FISH OIL TO INCREASE EEL GROWTH RATE Anguilla bicolor (McCelland, 1844)
Full text linkEel (Anguilla bicolor) is a export commodity fish in fisheries sector and has has high economic value but has slow growth. One method to accelerate eel growth is through feeding with the enrichment of fish oil. The aim of this research is to know the increase of growth rate of eel fish fed with the enrichment of essential fatty acids with fish oil. The study used 3 treatments and 3 replications ie A (0% fish oil / control), B (1.5% fish oil), and C (3% fish oil). Parameters observed included specific growth rate, feed consumption total, feed efiesiensi, fat retention, survival rate. The supporting parameters are water quality. The result of research obtained were tabulated and analyzed by excel 2013 program and SPSS v. 20.0. with 95% confidence interva and continued by Duncan test. The results showed that there was a significant effect (P <0.05) on the growth rate of eel fish fed with the enrichment of essential fatty acids with fish oil. Treatment C (3% fish oil) is the optimum dose because it has the best growth performance and best feed efficiency that is specific growth rate (4,61% ± 0,0075), total feed consumption (246,3 g ± 50,1), feed efiesiensi (42,5% ± 3,74), fat retention (2,97% ± 0,148) and survival rate (86,7% ± 11,5)
KELAYAKAN USAHA BUDIDAYA UDANG VANAME (Litopenaeus vannamei) DI DESA PURWOREJO, KECAMATAN PASIR SAKTI KABUPATEN LAMPUNG TIMUR
Full text linkShrimp cultured in Purworejo Village begun in the 1980s. Productivity of shrimp farming in this region, had experienced a peak of success in 1998 with an average production of 200 kg / ha with black tiger shrimp (Penaeus monodon) as the main commodity. Productivity decreases to 120kg / ha then occur due to decreasing environmental quality and susceptible post larvae to disease infections. One effort to increase the productivity of ponds can be done by switching the cultivation of black tiger shrimp to Pacific white leg (Litopenaeus vannamei) shrimp. The purpose of this study was to study the feasibility of semiintensive Pacific whiteleg shrimp cultured. This research was carried out in two shrimp farmer groups namely Sido Makmur and Lestari Gemilang located in Purworejo Village, Pasir Sakti District, East Lampung Regency. The type of research used is a case study and uses descriptive tests. The results showed that Pacific white leg shrimp cultured can produce 10,804,45 kg/3 ha and achieve a profit of Rp. 407.025.500 with a net B/C of 1,7. Moreover, black tiger shrimp culturehas reached 725 kg/5 ha with a profit of Rp. 13.660.000 with net B/C of 1,2. This study concluded semiintensive Pacific whiteleg shrimp is profitable compared toblack tiger shrimp cultured. It is also feasible to be developed by the village community
THE STIMULATION OF GONAD MATURITY OF ASIAN REDTAIL CATFISH Hemibagrus nemurus (Valenciennes, 1840) THROUGH INDUCTION OF OOCYTE DEVELOPER (Oodev) HORMONE
Full text linkOodev hormone application has been applied to stimulate gonadal maturity so that fish fry could be available outside the spawning season. This research aimed to study the effect of Oodev hormone on the gonadal maturity of asian redtail catfish Hemibagrus nemurus (Valenciennes, 1840). This research method used a completely randomized design (CRD) with 4 doses treatments, i.e 0, 0,25, 0,50, 1,00 ml/kg. A total of 8 fish were used as replications for each treatment. The parameters measured were the gonado somatic index (GSI) and egg diameter. The results showed that the effect of Oodev hormone on GSI and egg diameter was significantly different (P<0.05). A higher Oodev hormone dose caused an increase of GSI and egg diameter size. The recommended Oodev dose for application is 1 ml/kg
FEED ENRICHMENT WITH FISH OIL AND CORN OIL TO INCREASE EEL GROWTH RATE Anguilla bicolor (McCelland, 1844)
Full text linkEel (Anguilla bicolor) is an Indonesian freshwater commodity that has high economic value but has slow growth. One method to accelerate eel growth is through feeding with the enrichment of essential fatty acids. The aim of this research is to know the increase of growth rate of eel fish fed with the enrichment of essential fatty acids with fish oil and corn oil. The study used 3 treatments and 3 replications ie A (0% corn oil + 0% fish oil), B (1.5% corn oil + 1.5% fish oil), and C (3% corn oil + 3% fish oil). Parameters observed included specific growth rate, total feed consumption, feed efficiency, fat retention, and survival rate. The supporting parameter is water quality. The data obtained were analyzed by analysis of variance and continued by fisher test with 95% confidence interval. The results showed that there was a significant effect (P <0.05) on the growth rate of eel fish fed with the enrichment of essential fatty acids with fish oil and corn oil. Treatment C (3% corn oil + 3% fish oil) is the optimum dose because it has the best growth performance and best feed efficiency that is specific growth rate (4.67%), total feed consumption (262,9 g), feed efficiency (61% ), fat retention (2.805%), and survival rate (80%)
STUDY OF USE FERMENTED BANANA Musa paradisiaca (Linnaeus, 1761) HUMPS AS ORGANIC FERTILIZER TO IMPROVE NATURAL FEED AVAILABILITY IN NURSERY OF HOVEN’S CARP Leptobarbus hoevenii (Bleeker, 1851) FRY
Full text linkPlankton as a natural feed is thought to be a factor that affects the growth of hoven’s carp fry. Plankton abundance can be increased by the addition of organic fertilizers containing nutrients (nitrate and phosphate). Nutrients abundance can be increased by addition of fermented banana hump’s This research aimed to determine the use of fermented banana’s hump to increase the availability of natural feed nursery and the growth of hoven’s carp fry. The method of this research used a completely randomized design with four treatments and three replications, i.e: P1 (control), P2 (5,0 ppm), P3 (7,5 ppm), and P4 (10,0 ppm) addition of fermented banana’s hump. The measured parameters were nitrate, phosphate, plankton abundance, growth and water quality. The results showed the dose of addition of banana weed fertilizer had an effect (P< 0.05) on the abundance of natural feed and the growth of hoven’s carp fry. Results of water quality measurement showed the parameters of temperature ranged from 25 to 27 °C, pH ranged from 6,23 to 7,53, DO ranged from 3,40 to 11,36 and ammonia from 0 to 0,001 mg/l. The recomended dosage of fermented banana’s hump was 10 ppm for 1 l of water media
TREATMENT OF VIBRIOSIS DISEASE (Vibrio harveyi) IN VANAME SHRIMP (Litopenaeus vannamei, Boone 1931) USING Avicennia alba LEAVES EXTRACT
Full text linkAvicennia alba is a mangrove plant that often ued by coastal society as a traditional medecine, it is potential to be dveloped as the sources of pharmaceutical. The aim of the research is to examine the effect of Avicennia alba leaves extract various concentrations to Vibrio harveyi infection on vaname shrimp. The addition of the extract is thought to be used as an antibacterial so that it can give effect to the attack of V. harveyi in vaname shrimp. Vaname shrimps (total of 120 shrimps) with a weight of 10±2g/ind were injected intramuscularly with V. harveyi bacteria in 107 CFU/ml density. After the occurrences of clinical symptoms, the shrimps were immersed into A. alba leaves extract with concentration 0 ppm, 150 ppm, 250 ppm, and 350 ppm for 21 days. The results showed that the addition leaves extract can increase shrimp’s survival rate as much as 46.67% and increase the shrimp’s ability to prevent (RPS) V. harveyi infection untill of 70±15%. The mean time of death (MTD) was 106±18.33 hours, it caused there ar active compounds contained such as saponin, tannin, and steroid be suspected antibacterial so that they can protect shrimp from the effect of Vibrio infection damage. Giving a concentration of 250 ppm Avicennia alba leaves extract can treat vaname shrimp which was attacked by V. harveyi better than other treatments
EFFECTS OF DIETS WITH DIFFERENT PROTEIN LEVEL FOR COBIA (Rachycentron canadum) GROWTH IN CONTROLLED TANK
Full text linkThe feed given to cobia’s juvennile (Rachycentron canadum) still uses expensive factory-made feed to be the basis of this research. This aims of this research to examine the effect of feed formula with different protein levels on optimal growth cobia. This research method used a completely randomized design (CRD) with three treatments and three replications. The treatment in this study were different protein level commercial feed (as control/46%), and formula feed (protein P1 46% and P2 protein 48%). The parameters tested included absolute weight, daily growth rate, feed conversion ratio, protein retention, and survival rate. The data obtained were analyzed by analysis of variance and continued with the duncan test with a 95% confidence interval. The results showed that the growth of absolute weight and daily growth rates generated from each treatment were significantly different (p <0.05), K (80.30 ± 11.20c g and 1.78 ± 0.25c g/day), P1 (21.87 ± 1.95a g and 0.49 ± 0.05a g/day), P2 (37.43 ± 3.29b g and 0.83 ± 0.07b g/day)
EVALUATION OF THE POND SEDIMENT QUALITY OF BLACK TIGER SHRIMP (Penaeus monodon) CULTIVATION IN MARGASARI VILLAGE LABUHAN MARINGGAI DISTRICT LAMPUNG TIMUR REGENCY
Full text linkMargasari aquaculture area in Labuhan Maringgai District of East Lampung Regency is applying the system of black tiger shrimp (Penaeus monodon) extensively. The decrease in the number of shrimp production in Margasari Village is suspected as a result of sediment degradation in the pond area. This study was aimed to evaluate the quality of sediment in the pond area for the cultivation of black tiger shrimp. The samples were collected for 4 weeks at 3 ponds, data were analyzed qualitatively and quantitatively. The results showed the location of ponds of 1 belongs to the suitability of the highly suitable (S1) for cultivation activities. The location of ponds of 2 and 3 belong to the moderately suitable (S2) for the cultivation of black tiger shrimp, and requiring more treatment for pH, C-Organic, nitrogen, potassium