e-Jurnal Rekayasa dan Teknologi Budidaya Perairan
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STUDI TENTANG PENGGUNAAN PAKAN KOMERSIL YANG DICAMPUR DENGAN BAKTERI Bacillus coagulans TERHADAP PERFORMA Litopenaeus vannamei
Full text linkIn vaname shrimp cultivation, one of the problem that often arise is the high production costs in provision of feed The use of probiotics is a viable alternative to reduce production costs. The probiotic that used in this research was Bacillus coagulans bacteria. This research was aimed to know the effect of the use of Bacillus coagulans bacteria in feed on weight growth, lenght growth, survival rate, feed conversion ratio, and water quality in cultivation on vaname shrimp. Post larvae 10 vaname shrimp as much as 25 pcs were placed in each aquariums with volume 50x40x40 cmfor 30 days. The probiotics with dosage of treatment 30 ml/kg; 50 ml/kg; 70 ml/kg were combined in commercial feed with the protein content 32%. The shrimp feeding method that used in this research was blind feeding with 4 times feeding a day. The result showed that the best treatment was 70 ml/kg feed giving the significant effect on weight growth, length growth, andfeed conversion ratio. The treatments didn't effect on SR however. The water quality such as DO, temperature, salinity, and was TAN still in the optimum value
PENGARUH PENGGUNAAN TEPUNG Lemna sp. TERFERMENTASI PADA PAKAN BUATAN TERHADAP TINGKAT PEMANFAATAN PAKAN, PERTUMBUHAN DAN KELULUSHIDUPAN BENIH IKAN LELE DUMBO (Clarias gariepinus)
Full text linkThe cost of feed is one of the production costs that account for 65%, so the need for alternative feed ingredients that can reduce feed costs. Lemna plant has good enough nutrition as alternative food such as protein 32,13%, nitrogen extract (BETN) 15,96%, and fat 5,13%, crude fiber 28,58% and ash 18, 20% that can be used as fish feed ingredients.The aim of this study is to determine the effect and the best dose level of fermented lemna flour to the level of feed utilization, growth and survival of dumbo catfish (C. gariepinus).The experimental fish used was juvenile of catfishwith an average individual body weight of 3,43±0,06 g and the density of 1 fish/2 l for 42 days. This experimental applied completely randomized design (CRD), which consisted of 5 treatments and 3 replicates. The treatments were treatment each by an addition of flour lemna fermented 0% (A), 5% (B), 10% (C), 15% (D) and 20% (E) respectively. The results showed that the flour lemna fermented provided significantly effect (P<0,05) on total feed comsumption, feed utilization effeciency), protein efficiency ratio and relative growth rate. However, no significant effects (P>0,05) wereoccured on the values of survival rate. The highest dose of 20% dose of fermented lemon flour resulted in total feed intake of 170.01 ± 9.25 g, feed efficiency of 78.82 ± 4.75%, protein efficiency ratio of 2.49 ± 0.15% and the relative growth rate (of 4.60 ± 0.31% / day, while the optimum dose of fermented lemon flour to total feed consumption, the efficiency of feed utilization protein efficiency ratio and relative growth rate have not found the optimum point because based on orthogonal polynomial test still patterned linear
KAJIAN PEMANFAATAN TEPUNG AMPAS KELAPA SEBAGAI CAMPURAN PAKAN UNTUK IKAN LELE DUMBO, Clarias gariepinus (Burchell, 1822)
Full text linkCoconut waste is one of the industrial waste or household waste that potentially can be mixed in feed, because it contains of 5,7% protein, 16,3% fat, 38,1% carbohydrate, 31,6% rough fiber, 5,5% water, and 2,6% ash. The aim of this study was to learn the effectivity of adding shredded coconut waste as fish feed ingredients for dumbo catfish fry. This research was carried out in 60 days in Aquaculture laboratorium, Fisheries and Marine, Agriculture Faculty, University of Lampung. This research used completety randomized design with 4 treatments and 3 repetitions. Treatment A (0% of coconut waste flour), treatment B (10% of coconut waste flour), treatment C (20% of coconut waste flour), and treatment D (30% of coconut waste flour). The parameters in this research were growth rate, daily growth rate, and feed conversion ration and protein retention and water quality. The result showed that the use of coconut waste flour in feed gave no effect to the growth rate, daily growth rate, and feed conversion ratio for the dumbo catfish
EVALUASI KESESUAIAN PERAIRAN UNTUK BUDIDAYA IKAN BETUTU Oxyeleotris marmorata (BLEEKER, 1852) DI DESA RANTAU JAYA MAKMUR SUNGAI WAY PEGADUNGAN KECAMATAN PUTRA RUMBIA KABUPATEN LAMPUNG TENGAH
Full text linkWay Pegadungan is a tributary of Way Seputih, has a length of 35.31 km and a river width of 50 to 70 meters. Way Pegadungan is very potential for aquaculture but has not been used optimally. This research was held in March - May 2018 using a descriptive quantitative method aimed at assessing the level of suitability of the waters by knowing the physical and chemical parameters for the cultivation of betutu fish. The data used primary data, namely the parameters of water suitability in the form of water quality values, while the secondary data is in the form of research location maps. Water suitability analysis was carried out using matching and scoring methods. The range of data obtained is depth: 6-7 m, brightness: 37,5-55 cm, temperature: 28-29ºC, pH: 7-8,21, dissolved oxygen: 4,02-6,73 mg / l, current : 0,14-0,16 m / s, nitrate: 0,16-0,21 mg / l, phosphate: 0,01-0,025 mg / l, ammonia: 0,01-0,065 mg / l, organic matter: 6,7-10,76 mg / l. Sampling stations were 4 stations determined by the global positioning system (GPS). At the first and fourth points get moderately sutable (S2) and at the second and third points get marginal sutable (S3)
ANALISIS KESESUAIAN PERAIRAN UNTUK BUDIDAYA IKAN KERAPU MACAN (Epinephelus fuscoguttatu) DI PERAIRAN PULAU TEGAL KECAMATAN TELUK PANDAN KABUPATEN PESAWARAN
Full text linkTiger grouper is a marine aquaculture commodities that has good prospects to be developed. One of the areas that could potentially be used as a place of tiger grouper fish farming is the Tegal Island, Pesawaran. The purpose of this research was to analyze the level of water quality for fish farming tiger grouper (Epinephelus fuscoguttatus). This research was carried out in March-May 2017 descriptive analytic nature by doing the observations on the quality of waters which include physical and chemical parameters. The data that used in this research sourced from primary data about the suitability waters of the island while the secondary data is form in research location maps. There were 4 sampling stations which determined with global positioning system (GPS). The results showed that the water quality which is owned by the island's waters on station 1, 2, 3 and 4 were in the quite appropriate category for the cultivation of tiger grouper
PENGARUH PROPORSI TEPUNG IKAN DAN TEPUNGKEONG MAS (Pomacea canaliculata) YANG BERBEDA SEBAGAI BAHAN BAKU UTAMA PEMBUATAN PAKAN TERHADAP PERTUMBUHAN BENIH UDANG VANNAMEI (Litopenaeus vannamei)
Full text linkFeed is the main source of nutrients to support vannamei shrimp growth. The high cost of feed in operational costs due to the high raw material price of fish meal, limited availability, while the demand is high. Therefore it is necessary to find alternative materials that are low in price, have a high enough protein content and abundant availability such as golden snail flour. The purpose of this study was to analyze the effect of different proportion of fish meal and mashed snail (Pomacea canaliculata) as the main feedstock for the growth of shrimp vannamei (Litopenaeus vannamei). The experimental design used in this study was Completely Randomized Design (RAL) consisting of 5 treatments, namely A (57.18% use of fish meal in feed), B (42.89% use of fish meal, 14.30% mashed flour), C (28.59% fish meal usage, 28.59% mashed snail), D (Use of 14.30% fish meal, 42.89% mashed snail), and E (Use 57.18% golden snail flours). This study shows that the addition of mashed snail flour in the feed can increase the growth of absolute weight, the daily weight of vannamei shrimp, and can decrease the value of FCR
PEMANFAATAN BUNGKIL INTI SAWIT SEBAGAI MEDIA PERTUMBUHAN CACING SUTRA (Tubifex sp.)
Full text linkThe purpose of this research was to observe the effect of fermented palm kernel cake as a growth media for Tubifex sp. This research was conducted at the Aquaculture Laboratory, University of Lampung for 50 days. Completely Randomized Design (CDR) with 5 treatments and 3 replicates design is used for this experiment. The treatments are 100% field mud, 25% palm kernel cake :75% field mud, 50% palm kernel cake : 50% field mud, 75% palm kernel cake : 25% field mud, and 100% palm kernel cake. The data were analyzed with analysis of variance (ANOVA) continued with Least Significant Difference (LSD) test. The main parameters measured were Tubifex sp population and biomass as well as water quality parameters: pH, temperature, dissolved oxygen, and ammonia. The results showed that fermented palm kernel cake significantly (p<0,05) increase silk worm biomass and population. The best result of this research was found in 50% fermented palm kernel cake and 50% field mud media producing 111.008 ind/m2 and 750,72 gr/m2 of Tubifex sp. Water quality during Tubifex sp were measured at 0,26-0,91 mg/l ammonia, pH 6,14-7,11, temperature 25-28°C, and dissolved oxygen 2,9-3,9 mg/l
EFEKTIVITAS PEMBERIAN BAKTERI Bacillus polymyxa MELALUI PAKAN TERHADAP IMUNITAS NON SPESIFIK UDANG VANNAMEI (Litopenaeus vannamei)
Full text linkThe addition of Bacillus polymyxa bacteria in the feed as immunostimulant is one of the efforts of disease prevention on vannamei shrimp (Litopenaeus vannamei). The aimed of this research was to know the effectivity of the use of Bacillus polymyxa bacteria in feed towards the non-specific imunity of vannamei shrimp. This research consisted of 4 treatments namely feed with the density of Bacillus polymyxa bacteria 0 cell/ml as control (A), 104 cell/ml (B), 106 cell/ml (C) and 108 cell/ml (D) and each treatment is repeated 3 times. This research has been done in 15 days. Parameters that observed this research were total haemocyte count (THC), phagocytosis activity, differential haemocyte count (DHC) and water quality. The results showed that the addition Bacillus polymyxa bacteria of 106 cell/ml was able to improve THC value 6,6x107 cell/ml on the day 10. The DHC value was in the normal range which is hyalin cell was 52-89% and granular cell was 11-48%. The quality of water maintenance media during this research was in the normal range there were temperature 27,2-28,1°C, DO 3,70-3,91ppm, pH 3,70-3,91, and salinity 30-35 ppt
UTILIZATION OF TOFU AND TAPIOCA INDUSTRIAL LIQUID WASTE FOR NILE TILAPIA (Oreochromis niloticus) CULTURE WITHIN DIFFERENT BIOFLOC SYSTEMS
Full text linkLiquid waste produced by tofu and tapioca industry was approximately 1,5-2 m3 and 4-6 m3 per day respectively. Tapioca liquid waste has concentration of carbon around 119,11 mg/l, while tofu liquid waste has around 133,03 mg/l of nitrogen in concentration. Therefore both of these waste have the potential to be used as biofloc that utilized as additional feed with high protein content for nile tilapia. The aim of this research was to know interaction between C/N ratio and place of biofloc production to the growth of nile tilapia. This research used completely randomized design based on factorial experiment which consisted of two level of each factor and three repetition. Level of C/N ratio were 15 and 20 whereas level of place of biofloc production were inside and outside fish culture container. The result of this research showed that interaction between place of biofloc production and C/N ratio affected the growth of nile tilapia. The treatment inside biofloc production with 20 C/N ratio gave provided the highest absolute growth (3,26 g) and daily growth rate (0,082 g per day)