Tarpaulin Ponds Research Articles

Feed supplementation with quorum quenching probiotics improved growth response, immune response, and resistance in the giant mottled eel, Anguilla marmorata

This study aimed to evaluate the effect of feed supplementation with quorum quenching (QQ) probiotic bacteria on growth performance, hematology, immune response, and disease resistance in giant mottled eels. The feed used was supplemented with 45 ± 2.3 g/individual QQ bacteria using the following treatments, namely Bacillus cereus strain B8, Pseudomonas putida strain BPA1, Bacillus cereus strain HPC 576, and control (no QQ). A total of 420 eels (average weight 45 ± 2.3 g/ind.) were randomly reared in 12 open tarpaulin ponds of 2 x 1 x 1 (W x L x D) m and 1000-L volume for 8 weeks. Feed was given three times per day at 5% of the body weight. Water was changed daily at 25%, and shelters were provided using 3-inch diameter PVC pipes. The results showed that the feed containing QQ bacteria improved the growth, hematology, immunity, and disease resistance of the eels compared to the control (P < 0.05). Furthermore, among the QQ bacteria tested, the feed with B. cereus strain HPC 576 had the highest performance in all tested parameters.

VARIASI PADAT TEBAR TERHADAP PERTUMBUHAN UDANG VANNAMEI (Litopenaeus vannamei) DENGAN PEMELIHARAAN PADA KOLAM TERPAL HIGH DENSITY POLYETHYLENE (HDPE)

Vaname shrimp (Litopenaeus vannamei) is a type of shrimp that has high economic value and has great potential as an export commodity. The aim of the research was to analyze growth parameters, specific growth rate (SGR) and feed efficiency of vannamei shrimp in HDPE (High Density Polyethylene) tarpaulin ponds with different stocking densities. The research was carried out for 5 months with three treatments (stocking density of 100 shrimp/m3, dense stocking of 150 shrimp/m3 and dense stocking of 200 shrimp/m3) with 3 replications each. The results of the research on the specific growth rate (SGR) parameter had a significant effect (P&gt;0.05), while the feed efficiency level (EP) parameter had no significant effect) on different densities in high Density Polyethylene (HDPE) tarpaulin ponds. The best specific growth rate (SGR) variable was in the 100 head/m2 stocking density treatment with a value of 9.72 ± 0.13b%, while the best feed efficiency variable in the 100 head/m2 treatment was 73.98 ± 5.09a%. Based on this, the treatment of 100 shrimp/m3 is the optimal dense stocking treatment.

Image Data Acquisition and Classification of Vannamei Shrimp Cultivation Results Based on Deep Learning

This research aimed to employ deep learning techniques to address the classification of Litopenaeus vannamei cultivation results in land ponds and tarpaulin ponds. Despite their similar appearance, distinguishable differences exist in various aspects such as color, shape, size, and market price between the two cultivation methods, often leading to consumer confusion and potential exploitation by irresponsible sellers. To mitigate this challenge, the research proposed a classification method utilizing two Convolutional Neural Network (CNN) architectures: Visual Geometry Group-16 (VGG-16) and Residual Network-50 (ResNet-50), renowned for their success in various image recognition applications. The dataset comprised 2,080 images per class of vannamei shrimp from both types of ponds. Augmentation techniques enhanced the dataset’s diversity and sample size, reinforcing the model’s ability to discern shrimp morphology variations. Experiments were conducted with learning rates of 0.001 and 0.0001 on the Stochastic Gradient Descent (SGD) and Adaptive Moment Estimation (ADAM) optimizers to evaluate their effectiveness in model training. The VGG-16 and ResNet-50 models were trained with a learning rate parameter of 0.0001, leveraging the flexibility and reasonable control provided by the SGD optimizer. Lower learning rate values were chosen to prevent overfitting and enhance training stability. The model evaluation demonstrated promising results, with both architectures achieving 100% accuracy in classifying vannamei shrimp from soil ponds and tarpaulin ponds. Furthermore, experimental findings highlight the superiority of using SGD with a learning rate of 0.0001 over 0.001 on both architectures, underscoring the significant impact of optimizer and learning rate selection on model training effectiveness in image classification tasks.

Pelatihan Budidaya Ikan Lele Kolam Terpal Di Kecamatan Seberang Musi Kabupaten Kepahiang

Seberang Musi sub-district launched a food security program through catfish farming using tarpaulins in 2020. This is one way for the sub-district government to socialize household-scale fish farming, especially catfish commodities, so that people get additional income benefits by utilizing the yard around the house. The problems that exist in the residents of Talang Babatan Village and Benuang Galing Village are the lack of technical skills in fish farming, because both villages are villages that produce plantation products. Therefore, the service team was invited to provide training in an effort to succeed the village development program. In addition to being an effort to alleviate poverty in rural communities, and accelerate poverty alleviation programs in rural areas. The purpose of this activity is to provide training in catfish farming in tarpaulin ponds as well as a medium for disseminating knowledge and transferring technology through community service activities. The methods used were: 1. counseling to participants about catfish farming in tarpaulin ponds; 2. demonstration of methods and practices by giving examples of how to assemble tarpaulins as maintenance containers and how to handle fish directly to participants; 3. evaluation. The collected data were tabulated and analyzed using descriptive analysis method. The purpose of the evaluation was to assess the response of participants in the transfer of knowledge and skills. This was done by assessing the results of the initial and final questionnaires filled out by the participants. The results of the questionnaire showed that there was an increase in participants' knowledge by 12.5% with a minimum value in the pre-test of 37.5 and a maximum value of 87.5 while the minimum value in the post-test was 50.0 and a maximum value of 87.5.

Budidaya Ikan Lele Di Kolam Terpal Bundar Di Desa Padang Jaya Kecamatan Padang Jaya Kabupaten Bengkulu Utara

Padang Jaya Village is a village located in the Padang Jaya District, North Bengkulu Regency, Bengkulu Province. Padang Jaya Village is a Village With the majority of community work dominated by farmers or planters, Padang Jaya Village has various potential natural resource wealth, one of the potentials that can be empowered is freshwater fish farming. In order to increase economic value and reduce unemployment, Padang Jaya Village also has a role which is very strategic in terms of providing fish resources and freshwater fish productivity land. However, fish farmers in Padang Jaya Village are currently still using conventional technology where they do fish farming in earthen ponds with large areas of land and Some pond locations are located far from home, besides that in Padang Jaya Village when heavy rains fall there are often floods that cause, there are pond ripens that break so that fish in the pond are carried away by the current causes losses to farmers, especially in fish that are large or ready to be harvested. In order to help solve the problems of fish farmers in Padang Jaya Village, community service activities were carried out by providing counseling on catfish farming in round tarpaulin ponds in Padang Kaya Village, Padang Jaya District, North Bengkulu Regency. Knowledge of techniques or how to cultivate catfish in round tarpaulin ponds and understand the use of tarpaulin ponds as an alternative to increasing additional income in limited land conditions in this case in the yard of the house, besides that farmed fish are easy to control, free from flooding and easy water treatment and fish farmers in Padang Jaya Village get additional income through the sale of farmed catfish. . With the right understanding and ability to do fish farming in round tarpaulin ponds as a form of contribution to increase income generation and have an impact on improving the welfare of the community in Padang Jaya, Padang Jaya District.

Produksi Ikan Nila Dengan Kolam Terpal di Desa Kramajaya, Lombok Barat Untuk Mencegah Stunting

Kramajaya Village is one of the stunting loci in Narmada District, West Lombok Regency. Stunting is a problem of chronic malnutrition caused by inadequate nutritional intake over a long period of time due to providing food that is not in accordance with nutritional needs. The way to overcome and prevent stunting from a food perspective is to provide nutritious food to pregnant women, breastfeeding mothers and toddlers. These nutritious foods can include eggs, beef, chicken, seawater fish or freshwater fish. Tilapia is a fish that has high nutritional value and is classified as a fish that is low in cholesterol so it is healthy to consume. The results of discussions with the Mandiri Jaya Youth Organization, Kramajaya Village, Narmada District, West Lombok Regency, has abundant water sources. Apart from that, in Kramajaya hamlet there are many yards of residents' houses that have not been utilized optimally. There are no residents who know that the yard can be used to produce tilapia due to lack of knowledge about the technology of cultivating tilapia using tarpaulin ponds. Therefore, there is a need for knowledge transfer and assistance so that village residents, especially the Mandiri Jaya Youth Organization, Kramajaya Village, can produce tilapia fish in tarpaulin ponds to fulfill community nutrition, especially to prevent stunting and help improve the family economy. This counseling will be carried out using the Focus Group Discussion (FGD) method. Tilapia fish production using tarpaulin ponds in Kramajaya Village, West Lombok, is an effective solution in preventing stunting and improving community nutrition

Utilization of tds sensors for water quality monitoring and water filtering of carp pools using IoT

Carp is a type of consumption fish that is much favored by people in Indonesia, because Carp has a lot of protein and meat with good taste. In addition, Carp can be cultivated using tarpaulin ponds, because it saves land and land rental costs. In addition, Carp can be harvested in just 7 months. According to carp cultivators, market demand tends to increase every day, making the need for carp increase and causing Indonesian people to cultivate carp. In this case, it is necessary to apply technology that can help the community in the field of aquaculture, which can be controlled remotely and can monitor the condition of the water in the ponds. The purpose of this study is to find out how pool water filtration works and monitor water conditions using a Total Dissolved Solids (TDS) sensor. The selection of sensor inputs and set point values must be in accordance with the water quality conditions in the Carp pond. The use of the TDS sensor here functions as a detector for turbidity values in Carp ponds that have been set on the NodeMCU ESP32, a submersible water pump as output and the Blynk application as monitoring. The method used, Literature Study, Research Design, Field Study, Functional Testing, Data Processing, Analysis. Because it uses Internet of Thing (IoT) technology in this study, the monitoring and filtering control process can be done anywhere and anytime as long as it is connected to the internet network. From the results of testing the tool on 3 types of water, namely mineral water, clean water, and turbid water, the results for turbid water with 400–600 ppm turned out to be 479 ppm, the value is in the middle between 478 ppm mineral water and 480 ppm clean water. So it can be concluded that this tool works well and can be used in Carp ponds

Penyuluhan Penanggulangan Penyakit Ikan Bagi Pembudidaya Nila Kolam Terpal Di Desa Kramajaya, Lombok Barat

Fish diseases are one of the primary challenges faced by fish farmers, including tilapia fish farmers using tarpaulin ponds in the village of Kramajaya, West Lombok. Fish diseases can lead to significant losses in the fish farming business. Therefore, education on the management of fish diseases is essential to assist farmers in safeguarding their fish stocks and ensuring the success of their aquaculture endeavors. This endeavor aims to provide education to tilapia fish farmers using tarpaulin ponds in Kramajaya village, West Lombok, regarding the management of fish diseases. The education methods employed encompass the dissemination of information about the causes, symptoms, prevention, and treatment of fish diseases, along with aquaculture practices that can help mitigate the risk of diseases. The results of this education show an improvement in the knowledge of fish farmers regarding the management of fish diseases. They become more aware of the signs of fish diseases and are capable of taking appropriate preventive measures. Furthermore, they also understand the importance of maintaining water quality and the cleanliness of tarpaulin ponds as disease prevention measures. This education also provides a better understanding of the use of medications and proper medical actions in case fish diseases occur. Consequently, fish farmers can respond more promptly and effectively to fish diseases, which, in turn, can enhance the production of tilapia fish and the overall success of their aquaculture businesses.

Effect of tarpaulin pond on the growth and haematology of catfish (Clarias gariepinus)

The present comparative study investigated the haematological and growth parameters of catfish reared in both earthen and tarpaulin ponds. The growth response of the fish in both ponds such as overall weight gain, production index, survival rate, daily weight gain and length gain in the fish samples were determined. The overall weight gain in the catfish grown in earthen pond was higher (800 – 1000 g) than those from tarpaulin ponds (600 – 800 g). The production index of fish from earthen pond was higher than those of tarpaulin pond. The survival rate was higher in earthen pond (100%) than tarpaulin pond (80%). Moreover, daily weight gain and length gain were higher in earthen pond (12.50 g and 50 cm) than tarpaulin pond (10.00 g and 30 cm) respectively. Also, the haematological parameters such as the packed cell volume (PCV), haemoglobin concentration (HB), Red Blood Cell (RBC), White Blood Cell (WBC) count and other blood parameters of each of the blood sample, were determined using 5-part differential Haematology Auto-analyzer (Mindray BC 5300 model).Catfish from earthen pond recorded the highest haemoglobin value (8.68±0.15 g/dL) than that of tarpaulin pond (7.78±0.03g/dL) this means that the oxygen carrying capacity of blood of catfish from earthen pond is higher than those of tarpaulin pond. Packed cell volume (PCV) value was recorded the highest in earthen pond (25.00%) again than that of tarpaulin pond (23.50%). Earthen pond recorded the least white blood cell (WBC) count (5268.30±54.03 x 103/L) compared to that of tarpaulin pond (6170.50±37.09 x 103/L). Red blood cell (RBC) count was recorded the highest in earthen pond (2.74±0.01 x 106/L) than that of tarpaulin pond (2.18±0.01x 106/L). Blood of catfish from tarpaulin pond recorded the highest neutrophils (60%) than that of earthen pond (53%). Earthen pond recorded the highest leucocytes (40%) than that of tarpaulin pond (37%). Also, monocytes counts are higher in earthen pond (7%) than tarpaulin pond (3%). In conclusion, the results of the present study indicated that the type of pond material used to rear fish can alter growth and haematological parameters.

Empowering Fish Cultivator Groups in Water-Minimum Areas by Cultivating Ospronemous gouramy Fish in Probiotic Media Tarpaulin Ponds in Asahduren Village, Jembrana Regency, Bali Province

This National Community Partnership Program (PKM) is a collaboration between Warmadewa University, Denpasar and Sam Ratulangi University, Manado with partner fish cultivator group (Pokdakan) "Mina Dewata" in Asahduren Village, Pekutatan District, Jembrana, Bali. This PKM aims to optimize the use of water and land resources while increasing Pokdakan productivity by cultivating gourami fish in tarpaulin ponds with probiotic media. The cultivation container is in the form of a tarpaulin pond with water media treated with probiotics, so that it saves water and the water quality remains healthy for the growth of gourami fish. The program is implemented using the applied study method, including: 1) Cultivating gourami fish in tarpaulin ponds with probiotic media; and 2) Increasing the capacity and competence of Pokdakan. In this initial stage, the group has succeeded in creating 4 cultivation ponds out of the 12 planned ponds.

Broodstock development, induced spawning and larval rearing of the bilih, Mystacoleucus padangensis (Bleeker, 1852), a vulnerable species, and its potential as a new aquaculture candidate.

Background: Mystacoleucus padangensis living in Lake Singkarak, Indonesia, has high potential market demand but is threatened by overfishing and has not been successfully cultured. This study describes the first broodstock development, induced breeding, and larval rearing of M. padangensis. Methods: A total of 1,000 female and 1,000 male broodfish were collected from the wild and reared in two concrete ponds (128 m 2) at the Centre for Biodiversity Conservation, P.T. Semen Padang, Indonesia. The broodfish were fed commercial feed to satiation at 09:00 and 17:00 h. The females (average weight 7.56 ± 0.85 g) and males (4.86 ± 1.20 g) were selected at a ratio of 1:4 (female:male), and gonad maturation was induced with a single dose of GnRH analogue (Ovaprim) of 0.1 ml/fish. At 16 h after hormone injection, eggs were collected individually into a plastic vessel. Spermatozoa were collected with sterile syringes. Eggs were fertilized using the "dry" method, and 0.5 ml samples (equal to 100 eggs) were taken. The eggs were incubated in a plastic strainer with a water volume of 1.57 litres and placed in a tarpaulin pond with a volume of 150.72 litres. Results: The overall hatching rate was 78.93 ± 4.13%. The newly hatched larvae were 3900.81 µm long, with a yolk sac of 82881.480 µm 2. The mouth opened at 72 days post hatching (DPH) with a gape measuring approximately 61.880 µm. The protocol of larval feeding started with artificial feed, followed by Artemia nauplii up to 30 DPH. Weaning of larvae started at 4 DPH. Larvae started metamorphosis by 15 DPH and ended by 22 DPH when the larvae reached 7430.27 µm. Larval rearing resulted in an average survival rate of 28.4 ± 3.04%. Conclusions: Its successful spawning induction and high larval hatching and survival rates make M. padangensis an excellent aquaculture candidate.

Water Management through the Adoption of Tarpaulin Ponds to Enhance the Self-Sufficiency of the Wanagiri Village Community

Community Service activities are carried out in Wanagiri Village, Sukasada, Buleleng which has abundant water sources but has not been utilized optimally, especially for the Fisheries sector. Fish Group activities are weakening due to lack of motivation and the location for Fisheries Activities is very difficult to reach. The purpose of this community service is to provide solutions to the Merta Lestari Fish Group (Partners) to actively re-cultivate tilapia with the Biofloc system, providing Training on Tarpaulin Pond Making. The method used is by means of Interview, Counseling, Face-to-face, and Direct Practice. With this method, it is hoped that Partners will get knowledge and solutions to the problems faced. Activities are carried out in stages, the First Stage, the Team Provides Counseling, the Second Stage, the Team provides direct practice on making Tarpaulin Pools, conducting evaluations so that Partners really understand, and after that carrying out Coaching. The output targets to be achieved in this activity are publishing the results of activities in international journals, publishing in print/electronic media, making 4-minute activity videos, and obtaining IPR Certificates.

Implementation of Tilapia Biofloc Technology in the Bulian Sari Group as an Effort to Reduce Lake Pollution in Pancasari Village, Buleleng, Bali

Cultivating tilapia in round ponds with the biofloc system which has the advantage that tarpaulin ponds are easy to make, and the pond temperature is more stable than cement ponds. The methods that will be carried out in the implementation of this training are interviews, face-to-face, counseling and direct practice. The advantage of tarpaulin pools is that they are efficient in using water because we only need to fill in water at the beginning and the addition of water is also adjusted according to conditions. The application of Biofloc technology in Pancasari Village can increase tilapia production. The biofloc system can also increase the Survival Rate (SR) of fish and reduce the Feed Conversion Ratio (FCR).

Application of The Completely Random Design Statistics Method For Analysis of Different Filter Types In Fresh Water Fish Pool Water Recirculation System

In meeting their daily water needs (bathing and washing), the majority of the people of South Kalimantan (South Kalimantan) have been using river water and peat well water, as is the case for fresh water fisheries. However, the water used is cloudy and smells because it is water that is polluted by household waste, and of course it shows the quality of the water that is still being debated for the process of fish cultivation. In the process of cultivating freshwater fish, the standard mechanism is still used, namely by making tarpaulin ponds for fish ponds and river water as a medium for fish cultivation and the process of providing feed. In the process there are several things about water quality and conditions, and several other issues, namely about water circulation, temperature, humidity, pH and oxygen regulation of fish pond water. Fish excrete waste from leftover feed and metabolism which contain lots of ammonia (Effendi, 2003). Fish excrete 80-90% of ammonia through osmoregulation processes, feces and from urine. To produce quality pond water as a medium for fish cultivation, it is necessary to have a proper and good water filter. This study aims to obtain the best filter substrate in increasing the growth and survival of freshwater fish fry reared using polluted river water in a tarpaulin pond with a recirculation system. The filter method used in this study was an experimental method using one factor Completely Randomized Design (CRD) with four treatment levels and three replications. The treatments applied were P0 = Zeolite, Charcoal, Japmate, Bio Foam, P1 = Bamboo, Charcoal, Japmate, Bio Foam, P2 = Bioball, Charcoal, Japmate, Bio Foam and P3 = Bioring, Charcoal, Japmate, Bio Foam. The resulting data were analyzed for analysis of variance (ANOVA), then continued using the BNT test with 95% and 99% confidence intervals. From the results of the study, the measurement results obtained were for the specific growth rate test (SGR) of 1.15%, the survival test (SR) of 86.66% and the feed conversion ratio test (FCR) of 3.10%. While the supporting parameters are water quality, namely the results of water quality, namely, temperature 28.1 – 30.3 0C, pH 7.4 – 8.1, DO 5.24 6.53 mg/L, NH3 0.06 – 0.40 mg/L, NO2 0.056 – 0.90 mg/L and NO3- 0.28 – 0.190 mg/L. In addition to producing filter products that can support SGR, SR and FCR in freshwater fish, it is hoped that this research will also produce scientific paper outputs that will be published in International Conferences/International Journals and become part of the Study Program's Coursebook for the Accounting Department. Computerized Poliban Accounting and can be applied in the community through the Community Service program

Studies on Comparison of the Most Efficient Fish Culturing Facilities between Collapsible (Tarpaulin) and Concrete Fish Tanks

The Comparison of the Most Efficient Fish Culturing Facilities between Collapsible (tarpaulin) and Concrete Fish tanks were carried out from January, 2023 to April, 2023. The experiment was conducted using two concrete ponds and two tarpaulin tanks. The concrete ponds measured 8 X 4 X 3 and 8 X 4 X 3 feet and the tarpaulin ponds measuring 5 X 4 X 2 and 6 X 4 X 3 feet were used throughout the experiment. The concrete and the tarpaulin ponds were not limed nor fertilized and were stocked with 500 fingerlings each averaging 4.18g and 3.92cm in weight length respectively and the fish were fed at 5% body weight and were randomly sampled monthly. The results indicated that the mean weight gain and the mean length gain of the tarpaulin ponds and concrete ponds were 27.04g, 13.92g and 13.92cm, 9.44cm respectively. The t-cal and t-tab in terms of weight gain were 22.6 and 1.734 and since the t-cal is greater than t- tab there was significance difference on the weight of the cultured fish in the tarpaulin and concrete tanks at P ? 0.05 and the t-cal and t-tab in terms of length gain were 1.13 and 1.734 respectively and the results indicated that t-tab was greater than t-cal and it means there was no significance difference on the length of cultured fish in the tarpaulin and concrete tanks at P ? 0.05.

Implementation of SIPOC analysis as productivity improvement in tilapia aquaculture

Tilapia aquaculture in tarpaulin ponds is a new business pursued by residents of Kramatjegu Village, East Java, since the Covid-19 pandemic hit Indonesia. Restrictions on social activities, forcing residents to learn fish farming in a self-taught way. However, the problem that arose in the first month of cultivation was that many tilapia died and by the third month all the tilapia were gone. Lack of knowledge about fish farming techniques, lack of correction of water and feed quality, and inaccurate handling of fish problems are problems that need to be resolved. The purpose of this community service is to conduct counseling related to fish farming techniques, as well as giving work instructions (IK) to residents. While the method applied to this activity is counseling, as well as an introduction to the concept of Supplier-Input-Process-Output-Customer (SIPOC). The result of this counseling is an increase in residents' knowledge about preparation for making tarpaulin ponds, seed selection and production, feeding techniques, harvesting, and selling fish.

Floating treatment wetlands using Vetiveria zizanioides and Heliconia psittacorum in aquaculture wastewater treatment

The most important things needed in aquaculture are good quality and quantity of water resources. The residue from the use of pellets as additives and the results of the excretion of aquatic biota will produce liquid waste characteristics with high nutrient and organic matter content. One of the efforts to treat wastewater is using floating treatment wetlands (FTWs). This study aimed to analyze the changes in nutrients and organic matter concentrations and the removal efficiency using Vetiveria zizanioides and Heliconia psittacorum in a sewage treatment system using FTWs by grouping water quality parameters as observational variables whose linear correlations are in the line to become one main component using the PCA (Principal Component Analysis). The research was conducted on a laboratory scale using tarpaulin ponds with a batch system, the source of wastewater from catfish ponds with 12 treatment variations namely plant type, surface area, and pond depth, and observed for 30 days. Parameters monitored include total nitrogen (TN), total phosphorus (TP), nitrate (NO3 −), nitrite (NO2 −), ammonia (NH4 +), orthophosphate (PO4 3-), chemical oxygen demand (COD), and in situ measurement of parameters such as dissolved oxygen (DO), pH, temperature, and conductivity. At the end of the experiment, it was seen that treatment pond 7 (Heliconia psittacorum, surface cover area 50%, depth 100 cm) effectively removed 75.35% of TN and 90.70% nitrate, treatment pond 1 (Vetiveria zizanioides, surface cover area of 100%, depth of 100 cm) effectively removed TP 92.55%, the treatment pond 5 (Heliconia psittacorum, the surface cover area of 100%, depth of 100 cm) effectively removed ammonia by 94.64% and nitrite by 97.93%. Almost all treatments tested can reduce COD concentrations, while the phosphate in the study showed a fluctuation until the end of the experimental period. Based on the PCA results on day 30, TN, TP, conductivity, phosphate, COD, nitrate, pH, and temperature can represent the characteristics of changes in the concentration of organic compounds and nutrients in aquaculture wastewater compared to other parameters.

Profitability Analysis of Vannamei Shrimp (Litopanaeus Vannamei) Cultivation Business in Tarpaulin Ponds in Jangka District, Bireuen Regency

The fisheries sector is a sector that plays a very important role in the economy of the community in Bireuen District, Aceh Province because it has great potential for the development of fishery areas. One of the businesses that is developing in the fisheries sector is the pond business, and Bireuen Regency is one of the regions that has consistently developed pond cultivation businesses, especially vannamei shrimp. However, there is a problem in developing vanamei shrimp, namely the price of feed is relatively high compared to the selling price, therefore it is necessary to analyze the profitability of the vanamei shrimp farming business. This study aims to determine the level of profitability obtained by vannamei shrimp farming in tarpaulin ponds in Jangka District, Bireuen Regency. Test result the profitability of the vannamei shrimp business in the Term District of Bireuen Regency to farmers who use tarpaulin ponds who are members of the Wahana Biru business group is that the percentagethe profits obtained by farmers are very profitable with a profitability percentage of 50.36% following the reference bank interest rate of 12%.

Fatty acid composition on diet and carcasses, growth, body indices and profile serum of Asian redtail catfish ( Hemibagrus nemurus) fed a diet containing different levels of EPA and DHA.

Background: The Asian redtail catfish Hemibagrus nemurus is a promising commercial aquaculture freshwater big-sized Bagridae catfish across Asian countries such as the Mekong, Malay Peninsula, and Indonesia. This study analysed the effect of eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3) supplementation in diets on changes in fatty acid compositions in feed and fish meat, lipid quality (atherogenic index and thrombogenic index), growth rate, body indicators, and serum metabolites of Hemibagrus nemurus juveniles . Methods: A total of 180 Asian redtail catfish (initial weight 54.80 ± 2.72 g) were fed four levels (0, 3,150, 6,300, and 9,450 mg of EPA+DHA/kg feed) sourced from fish oil. Diets were fed in triplicate in freshwater tarpaulin ponds, with 15 fish per tarpaulin pond. During the experiment, fish were fed 3% per day of the biomass weight. Results: Categorically, there were significant differences in the composition of fatty acids in the feed and fish meat. The atherogenic index was between 1.76 and 1.84, and the thrombogenic index was between 0.81 and 0.89 in all fish meat. Growth performance was significantly different between diets, while body indices did not make a significant difference between diets. The fish meat EPA and DHA showed positive linear relationships with diet EPA (p <0.001, r 2 = 90%) and DHA diet (p<0.001, r 2= 85%). Serum metabolites among treatments D2 and D3 diet-fed feed for 60 days did not significantly differ. Glucose (GLU) levels had moderate relationships with triglycerides (TAG) ( r 2= 65%), and GLU levels strongly correlated with low-density lipoprotein cholesterol (LDL-C) ( r 2= 81%). Conclusions: Based on diets and whole-body carcass compositions, growth performance, and serum metabolites, Asian redtail catfish fed a diet containing 6,300 mg of EPA+DHA/kg feed are best for food safety.

Broodstock development, induced spawning and larval rearing of the bilih, Mystacoleucus padangensis (Bleeker, 1852), a vulnerable species, and its potential as a new aquaculture candidate

Background: Mystacoleucus padangensis living in Lake Singkarak, Indonesia, has high potential market demand but is threatened by overfishing and has not been successfully cultured. This study describes the first broodstock development, induced breeding, and larval rearing of M. padangensis. Methods: A total of 1,000 female and 1,000 male broodfish were collected from the wild and reared in two concrete ponds (128 m2) at the Centre for Biodiversity Conservation, P.T. Semen Padang, Indonesia. The broodfish were fed commercial feed to satiation at 09:00 and 17:00 h. The females (average weight 7.56 ± 0.85 g) and males (4.86 ± 1.20 g) were selected at a ratio of 1:4 (female:male), and gonad maturation was induced with a single dose of GnRH analogue (Ovaprim) of 0.1 ml/fish. At 16 h after hormone injection, eggs were collected individually into a plastic vessel. Spermatozoa were collected with sterile syringes. Eggs were fertilized using the "dry" method, and 0.5 ml samples (equal to 100 eggs) were taken. The eggs were incubated in a plastic strainer with a water volume of 1.57 litres and placed in a tarpaulin pond with a volume of 150.72 litres. Results: The overall hatching rate was 78.93 ± 4.13%. The newly hatched larvae were 3900.81 µm long, with a yolk sac of 82881.480 µm2. The mouth opened at 72 DPH with a gape measuring approximately 61.880 µm. The protocol of larval feeding started with artificial feed, followed by Artemia nauplii up to 30 DPH. Weaning of larvae started at 4 DPH. Larvae started metamorphosis by 15 DPH and ended by 22 DPH when the larvae reached 7430.27 µm. Larval rearing resulted in an average survival rate of 28.4 ± 3.04%. Conclusions: Its successful spawning induction and high larval hatching and survival rates make M. padangensis an excellent aquaculture candidate.