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ARTIFICIAL SUBSTRATES INCREASED SURVIVAL AND GROWTH OF HYBRID CATFISH (Clarias gariepinus >< C. macrocephalus)
Get PDFArtificial substrates on fish cultured applied to distinguish benefit on growth dan survival of hybrid catfish (Clarias gariepinus >< C. macrocephalus). Catfish has been cultured in intensive method and limited pond bottom. This study used completely random design with treatments consists of normal pond bottom; 1.5 folds; 2 folds and 2.5 folds of pond bottom. Results showed artificial substrates 1.5 dan 2 folds receive abundant fish for rest compare to normal pond bottom (P>0.05). Applied 2 folds of artificial subsrates showed better growth parameters (body weight and total length) of hybrid catfish compared to other treatment (P<0.05). Population and survival of hybrid catfish on 1.5 folds; 2 folds and 2.5 folds of artificial substrates significanlt different compared to normal pond bottom (P<0.05). Biomass of hybrid catfish has maximum gain while used 1.5 folds and 2 folds of artificial substrates (P<0.05). This study prove that artificial pond bottom benefit to aquaculture in term use of energy for growth effectively
ENRICHED LIVE FEED SHOWED DIFFERENT GROWTH AND SURVIVAL TO BLACK TIGER SHRIMP (Penaeus monodon) POST LARVAE 2-13
Get PDFLive feed is used in aquaculture as nutrient and energy source to increase the growth of shrimp. The study of different live feed addition aimed to determine the effectiveness of enrich live feed based on growth and survival rate for black tiger shrimp (Penaeus monodon) post larvae 2-13. The post larvae have initial average weight of 1,17 mg and initial average body length of 5,3 mm. This study design using completely randomized design with four treatments and four replications were used : Artemia naupli enriched with fish oil, Branchionus plicatilis enriched with Tetraselmis chuii, Branchionus plicatilis enriched with Nannochloropsis, Branchionus plicatilis enriched with Tetraselmis chuii and Nannochloropsis. Shrimp was kept during 14 days for studying enrich live feed which were effective for the shrimp. The data was analyzed with ANOVA and continued with the LSD test. The research showed that different live feed addition give different growth. Artemia naupli enriched with fish oil is optimum for black tiger shrimp growth with body weight of 2,61 mg, body length of 5,96 mm, and survival rate of 89% (P<005) . It showed that enriched live feed will change contens of nutrien in live feed ang give positive response on growth and survival rate. This research support application of effective live feed management for adapting black tiger shrimp’s metamorphose in short time
Prospek Pengembangan Usaha Budidaya Kerang Hijau (Perna viridis) Di Pulau Pasaran, Bandar Lampung
Get PDFPasaran Island located in the Western District of Teluk Betung within 5 km from the center of Bandar Lampung. This island was known as a central anchovy in Lampung. Several attempts have been made to optimize the production of fishery there, especially anchovies, in the form of technical assistance policy to business operations. However, the potential Pasaran Island is very diverse and not limited to the anchovy, one of which is the potential for the cultivation of green mussel (Perna viridis). Mussels in Pasaran Island was cultivating in 3 years ago. This study uses a combination of aquaculture site surveys, water quality data collection, interviews and laboratory analysis of heavy metal content. With adequate environmental carrying capacity, ease of cultivation technology, the proximity of the location of the city of Bandar Lampung, food safety aspects as well as support for the various parties expected the green mussel farming can be a new icon other than Pasaran anchovy so as to improve social welfare in Pasaran Island
Suplementasi Minyak Ikan Untuk Peningkatan Imunitas Non Spesifik Udang Vaname (Litopenaeus vannamei)
Get PDFIncreased immunity shrimp became one of the targets of feeding with a complete nutrient constituent composition. Shrimp have a different immune system compared to fish in general and can be increased quickly by providing the right nutrients. Research nutrient supplementation to increase non-specific immunity, especially in Pacific white shrimp (Litopenaeus vannamei) still rarely done, especially with the addition of fish oil. This research was conducted to study the effect of fish oil supplementation in different oil among lemuru oil and patin oil with a non-specific parameter of Pacific white shrimp among total haemocyte count (THC), the differential haemocyte count (DHC), challenge test with Vibrio harveyi and relative percent survival (RPS). Design of experiments using a completely random design with three treatments and four replications. The treatment is adding the lemuru oil (treatment A), patin oil (treatent B) and without the addition of fish oil (control). The results showed that the addition of lemuru fish and patin fish oil treatment can increase THC, DHC, which affect the phagocytic activity relative to the level of protection without giving fish oil (P<0.05). The increasing of non-specific immunity of Pacific white shrimp with fish oil needs to analyze in the economic side to be more economical if applied to the shrimp farmers or commercial feed mills
Akumulasi Logam Cu, Cd dan Pb Pada Meiofauna Intertitial Dan Epifit Di Ekosistem Lamun Monotipic (Enhalus Acoroides)
Get PDFEnhalus acoroides is water plant intertidal that might be interaction between ecosystem eachother so it have ability to adsorb heavy metal that came from sea water and sediment that can accumulated in roots, leaf and bar ponder. Variation methods used to know distribution of meiofauna as intertitial fauna or epiphytic fauna on seagrass. The concentration of heavy metal of water, sediment and meiofana will be analyzed. The purpose of this research to determined correlation between concentration in seagrass, sediment, water and organism which associated whitin. The result of this research shown that concentration of heavy metal Cu, Cd and Pb have a significant correlation between water, sediment, part of seagrass and meiofauna. The value of R2 shown that correlation between water and sediment have bigest value, otherwise the R2 value of heavy metal shown that Pb is the biggest than Cd and Cu. Concentration heavy metal in seagrass shown that Cu>Cd>Pb and the same condition is also due in meiofauna. Its mean that the heavy metal is bioavailble for accumulation by meiofauna. Meifauna and segrass can be a good bioindicator for environmenta change especially heavy metal
Pengaruh Perbedaan Media Dan Periode Transportasi Terhadap Pertumbuhan Bibit Rumput Laut (Kappaphycus alvarezii)
Get PDFBrown seaweed (Kappaphycus alvarezii) is one of the important aquaculture commodities in Indonesia. Tissue culture seaweed seed has higher quality than the natural ones, but tissue culture seaweed seed still imported from a specific area. Media and transportation period effect the seed freshness. The study was conducted to determine the effective of transportation medium and the optimal of transportation period. The study was conducted in the Ketapang’s marine, South Lampung. The study using experimental methods with completely randomized factorial design with two treatments and three replication for each treatment. The first treatment is the difference transport media (banana stem and sponge), and the second treatment is the difference transport period (24, 48, and 72 hours). The parameters observed were transport temperature, the seed freshness, seaweed growth weight, and water quality factor (pH, dissolved oxygen, salinity, temperature, water clarity, and flow velocity). The results showed that the seaweed was transported by the media banana stem had seed freshness and weight growth higher quality than the sponge media, and the transportation period affected the seed freshness and the seaweed growth weight
Pengaruh Padat Tebar Terhadap Pertumbuhan Dan Kualitas Udang Windu (Penaeus monodon) Pada Sistem Nurseri
Get PDFThe low productivity during extensive culture of tiger shrimp (Penaeus monodon) may caused by disability to environmental adaptation of shrimp during cultured period. Nursery system build up to minimize this constrains and enhances shrimp growth, quality and variation in natural pond system. Nursery system is cultured method to take care shrimp during post larvae to juvenile size within 14 days. The objective of this research is to measure the growth and the quality of post larvae shrimp during nursery system at different density which is 750; 1250; 1750 and 2250 shrimps/m2, respectively. The observation of juvenile quality was done to observe the digestive tract, weight variation, necrosis and parasite fouling. In the other side, growth observation was observed by the total length and the body weight. The result showedgrowth and quality of shrimp significantly differentwithin different density. In contrast survival rate of shrimp in differeny density not significantly different. The density of 750 shrimp/m2during nursery system in extensive shrimp culture showed optimum in growth and quality.Shrimp production rose optimum size at 2250 shrimp/m2. The simulation of economic analysis of shrimp production showed benefit to farmer in 1750 shrimp/m2 of density. This study support shrimp production in traditional method may increase with nursery system and additional feed in short period (2 weeks)
ARTIFICIAL POND BOTTOM AND PROBIOTICS APPLICATION FOR AFRICAN CATFISH (Clarias sp.) GROW OUT IN SUPER INTENSIVE CULTURED
Get PDFCatfish has good prospect local market and has opportunity to go international market or export because the quality meat, has good size, and saturated quality condition for export. The big problem in intensive amplification catfish such as competition fir retain movement place because restrictveness basic fish pond.The basic application synthetic and affixture probiotic during amplification to intensive scale as basic alterbative increase production. The purpose in this research to know about the effective basic pond synthetic and addition probiotic to amplification masamo catfish towards biomassa, growth, giving woof and directness life. In thitis research has 3 treatment such as TDB treatment: amplification masamo catfish without use basic pond synthetic, after that in this treatment have name as control treatment. PBK treatment: amplification masamo catfish with addition probiotic in woof and water pond. PDB treatment: commodity.use basic 2 application synthetic pond. The result in this research is different with weight fish and directness with highest score is 1,387gr/day and 96,58% where as growth biomassa and in the conversion woof is nothing different. The basic utilization technology synthetic affixture probiotic capable to increase biomassa 10%. In this problem will have the impact in production and resulted income. The using of woof in amplification masamo catfish is more efficient with the application fish pond synthetic and probiotic. It can been seen from the result woof convertion is gotten. The growth weight and the length of catfish increases with the application fish pond synthetic and probiotic
Partial Substitution of Fish Meal with Petek (Leiougnathus equulus) Flour in Commercial Feed of Patin Siam (Pangasius hypopthalamus) Fry
Get PDFPatin Siam (Pangasius hypopthalamus) is a freshwater fish which is received considerable attention by public and has high economic value. In process of cultivation, farmers often got problems because of high price of feed. It’s because raw materials feed such fish meal still import from another country. One of the efforts to reduce the use of imported fish meal is using Petek fish meal. The aim of this research was to determine the effect of the use of Petek fishmeal as partial substitution of fish meal. This research used Completely Randomized Design (CRD) with 5 treatments and 3 replications namely treatment A (commercial pellets / control), B (fish meal 75% + Petek fish meal 25%), C: (fish meal 50% + Petek fish meal 50%), D (25% fish meal + 75% Petek fish meal) and E: (0% fish meal + Petek fish meal 100%). Observed variables were absolute growth, daily growth rate, survival rate, and feed conversion ratio (FCR). Data were analyzed by ANOVA and Duncan test. The tested fish were cultivated in aquarium with dimension of 60 x 40 x 40 cm3 for 50 days. Fishes were feed three times a days with feeding rate of 5%. The results showed that the use of Petek fishmeal in feed could increase absolute growth and daily growth rate. The treatment of C resulted in highest absolute growth of Patin Siam and lowest feed conversion ratio. The treatments did not effect the survival rate of Patin Siam
Analisis Efisiensi Usaha Penangkapan Nelayan Jaring Arad Di Tpi Roban Kabupaten Batang
Get PDFPenelitian yang dilakukan di wilayah pesisir pantai Utara Jawa bertujuan untuk menghitung efisiensi teknis usaha nelayan jaring arad dan mengetahui efisiensi keuangan usaha nelayan jaring arad di TPI Roban Timur dan Barat kabupaten Batang berdasarkan kriteria investasi (investment criteria) sederhana yakni BC ratio (Benefit Cost Ratio), BEP (Break Event Point) dan Payback Period. Metode yang digunakan adalah deskriptif. Responden nelayan diambil secara random sampling sebanyak 10% dari populasi yang ada karena n >100 (Arikunto, 2004) sejumlah 31 orang yang berasal dari desa Kedawung dan desa Kedung Segog Kecamatan Tulis di wilayah TPI Roban Barat dan TPI Roban Timur sedangkan Kabupaten secara purposive sampling. Pengumpulan data dilakukan pada bulan Nopember-Desember 2013. Hasil penelitian menunjukkan dari hasil analisis nilai BC ratio 1,21 , BEP(Q) 17,5 kg/trip dan BEPharga Rp 9.765,80,-/kg/trip, BEP(PK) Rp 206.546,61,-/trip;dan Payback Periode 2,2 tahun modal sudah kembali