Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.25669
Z. Zakaria, A. Malik, K. Khairuddin, Muhammad Ishak
This study aims to determine the effect of fermentation duration on the nutrient composition of seaweed liquid organic fertilizer (Sargassum sp). This research was conducted from May to June 2017 at The University of Muhammadiyah Parepare. Test materials used in the form of seaweed and lactobacillus. The container used in the implementation of this research is 6 bottles of 1000 ml size, before the bottles are used first the bottles are washed clean. Then each bottle is filled with extracts of Sargassum sp. as much as 800 ml and 40 ml of probiotics. Two bottles of treatment A (without fermentation), 2 bottles for treatment B (7 days fermentation), 2 bottles for treatment C (14 days fermentation). The design was a completely randomized design (CRD) with 3 types of each treatment. The results showed that micro nutrients that the iron (Fe) were obtained highest in treatment C (concentration 162 ppm), Silica (Si) in treatment A (100 ppm), manganese (Mn) in treatment B (29 ppm). For the highest macro nutrients potassium (K) obtained in treatment C (concentration 0.52%), Calcium (Ca) in treatment B (0.33%), Sulfur (S) in treatment C (0.31%) , Chlorine (Cl) in treatment C (concentration 0.27%). The research concludes that the length of time of fermentation affects the nutrient content of liquid organic fertilizer seaweed.
{"title":"The Effect of Fermentation Duration on Nutrition Composition of Seaweed (Sargassum sp.) Liquid Organic Fertilizer","authors":"Z. Zakaria, A. Malik, K. Khairuddin, Muhammad Ishak","doi":"10.20473/jafh.v12i1.25669","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.25669","url":null,"abstract":"This study aims to determine the effect of fermentation duration on the nutrient composition of seaweed liquid organic fertilizer (Sargassum sp). This research was conducted from May to June 2017 at The University of Muhammadiyah Parepare. Test materials used in the form of seaweed and lactobacillus. The container used in the implementation of this research is 6 bottles of 1000 ml size, before the bottles are used first the bottles are washed clean. Then each bottle is filled with extracts of Sargassum sp. as much as 800 ml and 40 ml of probiotics. Two bottles of treatment A (without fermentation), 2 bottles for treatment B (7 days fermentation), 2 bottles for treatment C (14 days fermentation). The design was a completely randomized design (CRD) with 3 types of each treatment. The results showed that micro nutrients that the iron (Fe) were obtained highest in treatment C (concentration 162 ppm), Silica (Si) in treatment A (100 ppm), manganese (Mn) in treatment B (29 ppm). For the highest macro nutrients potassium (K) obtained in treatment C (concentration 0.52%), Calcium (Ca) in treatment B (0.33%), Sulfur (S) in treatment C (0.31%) , Chlorine (Cl) in treatment C (concentration 0.27%). The research concludes that the length of time of fermentation affects the nutrient content of liquid organic fertilizer seaweed.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44516682","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.35054
A. Soeprijanto, R. A. Islamy
Clarias sp. is one of major genera of freshwater catfish and also common commodity in tropical aquaculture. Excessive light intensity is expected to be responded to by fish as environmental stressors. Fish that experience stress will increase the secretion of catecholamine, cortisol, blood glucose levels and p38 MAPKs in catfish. The different intensity of lights will affect the fish physiological processes. The purpose of this study was to analyze physiological responses (Level of blood glucose, primary stress hormone (Cortisol) and p38 MAPKs) catfish Clarias sp. which were incubated at different lights intensity of catfish. 300 fish were collected from Kepanjen Regency, East Java. Blood and meat sampling are carried out to test the profile of glucose, cortisol, and p38 MAPKs. The experimental research at this stage were carried out by transferred the catfish from Kepanjen to experimental aquarium (50 x 30 x 30 cm) that setted the different lights intensity (0 lux (control), 400 lux, 800 lux and 1200 lux). Each experimental aquarium is filled with 15 catfish and will be kept it for 21 days. Quantificationof the parameter using ELISA method. The study result showed highest peak of primary stress hormone (cortisol) levels are 34±1,50 ng/mL, blood glucose levels are 120±3,4 mg/dL, and p38 MAPK are 97±1,1 %. All of it were achieved in the treatment of 1200 lux on the 2nd week.
Clarias sp.是淡水鲶鱼的主要属之一，也是热带水产养殖中的常见商品。过度的光照强度预计会被鱼类作为环境压力源做出反应。经历压力的鱼类会增加鲶鱼儿茶酚胺、皮质醇、血糖水平和p38 MAPK的分泌。不同的光照强度会影响鱼类的生理过程。本研究的目的是分析在不同光强下培养的鲶鱼的生理反应（血糖水平、初级应激激素（皮质醇）和p38 MAPKs）。从东爪哇Kepanjen Regency采集了300条鱼。进行血液和肉类取样以测试葡萄糖、皮质醇和p38 MAPKs的分布。该阶段的实验研究是通过将鲶鱼从柯潘镇转移到实验水族馆（50 x 30 x 30 cm）进行的，该水族馆设置了不同的光照强度（0勒克斯（对照）、400勒克斯、800勒克斯和1200勒克斯）。每个实验水族馆都装满了15条鲶鱼，并将保存21天。使用ELISA方法对参数进行定量。研究结果表明，初级应激激素（皮质醇）水平的最高峰值为34±1,50 ng/mL，血糖水平为120±3,4 mg/dL，p38 MAPK为97±1.1%。在第2周1200lux的处理中，所有这些都实现了。
{"title":"The Mitogen-Activated Protein Kinase (MAPKs) Expression and Primary Stress Hormone (Cortisol) of Clarias sp. Juvenile in Different Light Intensity","authors":"A. Soeprijanto, R. A. Islamy","doi":"10.20473/jafh.v12i1.35054","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.35054","url":null,"abstract":"Clarias sp. is one of major genera of freshwater catfish and also common commodity in tropical aquaculture. Excessive light intensity is expected to be responded to by fish as environmental stressors. Fish that experience stress will increase the secretion of catecholamine, cortisol, blood glucose levels and p38 MAPKs in catfish. The different intensity of lights will affect the fish physiological processes. The purpose of this study was to analyze physiological responses (Level of blood glucose, primary stress hormone (Cortisol) and p38 MAPKs) catfish Clarias sp. which were incubated at different lights intensity of catfish. 300 fish were collected from Kepanjen Regency, East Java. Blood and meat sampling are carried out to test the profile of glucose, cortisol, and p38 MAPKs. The experimental research at this stage were carried out by transferred the catfish from Kepanjen to experimental aquarium (50 x 30 x 30 cm) that setted the different lights intensity (0 lux (control), 400 lux, 800 lux and 1200 lux). Each experimental aquarium is filled with 15 catfish and will be kept it for 21 days. Quantificationof the parameter using ELISA method. The study result showed highest peak of primary stress hormone (cortisol) levels are 34±1,50 ng/mL, blood glucose levels are 120±3,4 mg/dL, and p38 MAPK are 97±1,1 %. All of it were achieved in the treatment of 1200 lux on the 2nd week.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44355696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.36815
L. A. Wati, R. A. Lestariadi, Supriyadi Supriyadi, Muhammad Permana Hendra Safii
Talk about smart cities, the community's independence to open a business and drive the local economy is a concrete form in the community, which is useful in the current state. Even though in this Covid-19 pandemic condition, the life of a business is not easy, especially the seafood culinary business. A restaurant business requires a business development strategy that will determine the business's long-term future—this culinary tourism development and sustainability strategy. The MICMAC method functions analytically to solve systematic problems by developing sustainability strategies in industrial areas. So in this study, researchers will research Strategic Variable Analysis for the Development and Sustainability of the Fos-Food Restaurant Business in the Pandemic Era; MICMAC approach. This study uses primary and secondary data and uses the MICMAC method. The results of this study are: (1). The strategic factor analysis of Fos-Food Restaurant development has 11 strength variables, seven weakness variables, six opportunity variables, and eight threat variables. Based on the weighting and scores carried out, the total score for internal factors was 3.17 and for external factors was 3.07. (2). The research analyzed Fos-Food's development strategies and programs from the SWOT diagram, SWOT matrix, SWOT quadrant strategy analysis, and MICMAC analysis. The strategy analysis shows that the position of this restaurant is currently still in quadrant IV. Then the MICMAC analysis shows that judging from the indirect influence graph of each relationship between variables, the variables that have the greatest value are the variables: Financial and Accounting, Technological Environment, and Buyer/Customer Power.
{"title":"Analysis of Strategic Variables for the Development and Sustainability of Fos-Food Restaurant Business in the Pandemic Era; MICMAC Approach","authors":"L. A. Wati, R. A. Lestariadi, Supriyadi Supriyadi, Muhammad Permana Hendra Safii","doi":"10.20473/jafh.v12i1.36815","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.36815","url":null,"abstract":"Talk about smart cities, the community's independence to open a business and drive the local economy is a concrete form in the community, which is useful in the current state. Even though in this Covid-19 pandemic condition, the life of a business is not easy, especially the seafood culinary business. A restaurant business requires a business development strategy that will determine the business's long-term future—this culinary tourism development and sustainability strategy. The MICMAC method functions analytically to solve systematic problems by developing sustainability strategies in industrial areas. So in this study, researchers will research Strategic Variable Analysis for the Development and Sustainability of the Fos-Food Restaurant Business in the Pandemic Era; MICMAC approach. This study uses primary and secondary data and uses the MICMAC method. The results of this study are: (1). The strategic factor analysis of Fos-Food Restaurant development has 11 strength variables, seven weakness variables, six opportunity variables, and eight threat variables. Based on the weighting and scores carried out, the total score for internal factors was 3.17 and for external factors was 3.07. (2). The research analyzed Fos-Food's development strategies and programs from the SWOT diagram, SWOT matrix, SWOT quadrant strategy analysis, and MICMAC analysis. The strategy analysis shows that the position of this restaurant is currently still in quadrant IV. Then the MICMAC analysis shows that judging from the indirect influence graph of each relationship between variables, the variables that have the greatest value are the variables: Financial and Accounting, Technological Environment, and Buyer/Customer Power.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49294691","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.37384
Yudi Pradipta, K. Kismiyati, P. D. Wulansari
This study aims to determine the benefits and optimal concentration of ketepeng cina leaves (Cassia alata L.) ethanol extract to prevent A. japonicus infestation in gourami fish. This research was conducted in May - August 2019. The research method used is the experimental method. This research design used Complete by Randomized Design (CRD ) with four concentration i.e. Control (P0), 209 ppm (P1), 418 ppm (P2), and 627 ppm (P3). Data was analyzed using Analysis of Variance (Anova) and then followed by Duncan’s Multiple Range Test (DMRT). The results showed that adding ketepeng cina leaves (Cassia alata L.) ethanol extract can prevent Argulus japonicus infestation on gourami fish at the concentration 627 ppm.
{"title":"The Utilization of Ketepeng Cina (Cassia alata L.) Leaves Ethanol Extract as a Prevention of Argulus japonicus Infestation to Gourami Fish (Osphronemus gouramy)","authors":"Yudi Pradipta, K. Kismiyati, P. D. Wulansari","doi":"10.20473/jafh.v12i1.37384","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.37384","url":null,"abstract":"This study aims to determine the benefits and optimal concentration of ketepeng cina leaves (Cassia alata L.) ethanol extract to prevent A. japonicus infestation in gourami fish. This research was conducted in May - August 2019. The research method used is the experimental method. This research design used Complete by Randomized Design (CRD ) with four concentration i.e. Control (P0), 209 ppm (P1), 418 ppm (P2), and 627 ppm (P3). Data was analyzed using Analysis of Variance (Anova) and then followed by Duncan’s Multiple Range Test (DMRT). The results showed that adding ketepeng cina leaves (Cassia alata L.) ethanol extract can prevent Argulus japonicus infestation on gourami fish at the concentration 627 ppm.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42348577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.36634
Endah Rochmatika, W. Darmanto, M. Mufasirin, Ramadhana Ramadhana
Indonesia is the largest exporter of eel to consumer countries such as European, America, Taiwan, Japan, South Korea, and the Middle East. Eels are catadromous fish that are in the growth phase in fresh waters and the development phase is in marine waters. Meristic measurement is done by counting the spine (vertebrates). Eel morphometric measurements include TL (Total Length), HL (Head Length), PDL (Pre-Dorsal Length), PAL (Pre-Anal Length) and ADL (Ano-Dorsal Length). The purpose of this study was to analyze the morphological, morphometric, and meristic diversity of intraspecies between populations. Based on the research, the samples identified were morphologically almost the same between the populations, this was seen from the color patterns in the form of plain black or brown and short fins. The morphometric and meristic measurements in the 3D distribution plot still appear to be clustered in one population, while in the dendrogram clade, one species is still congregated in each. The results of the interpretation of the matrix plot of the lowest diversity are the length and number of anodorsal vertebrate segments. This observation can be concluded that the TL and TV of the eel varied, while the PDL, PAL, PDV, PAV, ADV showed the intraspecies character of A. bicolor. This is because the distribution of A. bicolor eels that inhabit the waters of Java Island is widely distributed and random (panmitic).
{"title":"Morphometric and Meristic Diversity in Eel (Anguilla bicolor) in South Coast of Java","authors":"Endah Rochmatika, W. Darmanto, M. Mufasirin, Ramadhana Ramadhana","doi":"10.20473/jafh.v12i1.36634","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.36634","url":null,"abstract":"Indonesia is the largest exporter of eel to consumer countries such as European, America, Taiwan, Japan, South Korea, and the Middle East. Eels are catadromous fish that are in the growth phase in fresh waters and the development phase is in marine waters. Meristic measurement is done by counting the spine (vertebrates). Eel morphometric measurements include TL (Total Length), HL (Head Length), PDL (Pre-Dorsal Length), PAL (Pre-Anal Length) and ADL (Ano-Dorsal Length). The purpose of this study was to analyze the morphological, morphometric, and meristic diversity of intraspecies between populations. Based on the research, the samples identified were morphologically almost the same between the populations, this was seen from the color patterns in the form of plain black or brown and short fins. The morphometric and meristic measurements in the 3D distribution plot still appear to be clustered in one population, while in the dendrogram clade, one species is still congregated in each. The results of the interpretation of the matrix plot of the lowest diversity are the length and number of anodorsal vertebrate segments. This observation can be concluded that the TL and TV of the eel varied, while the PDL, PAL, PDV, PAV, ADV showed the intraspecies character of A. bicolor. This is because the distribution of A. bicolor eels that inhabit the waters of Java Island is widely distributed and random (panmitic).","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44472986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.35024
Ida Ayu Kade Wimala Niti, Maftuch Maftuch, R. Nurdiani
The increase in koi fish cultivation can lead to increase risks and caused problems. The main problem is high disease attacks caused by the bacteria Edwardsiella tarda. One of the alternatives to control the disease is immunostimulant treatment with the use of maggot, Hermetia illucens Larvae, known as Black Soldier Fly (BSF). This study aims to report the effect of maggot as a substitute for koi fish feed formulations on the immune system of koi fish infected with E. tarda. This study used a descriptive method, by quantitative approach with the IL-6 and IFN-Ɣ expression through RT-PCR analysis and fish survival rate (%). Identification of E. tarda was carried out by the PCR test method at a molecular weight of 200 bp. The density of bacteria that caused the death of the 50% koi fish population (LD50) for 72 hours was 107 cells/ml. The highest IL-6 expression in the spleen was found in sample C of 28,844 and the lowest in-sample K (+) of 26,096. The highest IL-6 expression in the liver was in sample K (+) of 29,060 and the lowest was in sample D of 25,428. The highest IFN-Ɣ in the spleen was in treatment C, 28,844, and the lowest was in treatment D, 27,219. The highest IFN-Ɣ in liver was sample K (+) of 26,795, and the lowest in-sample C of 25,615. The survival rate of fish in this study reached 30%-100%. The optimal amount of substitution of maggot treatment is 75% (Treatment C) of fish feed.
{"title":"Effect of Maggot on the IL-6 and IFN-Ɣ Expression of Koi Fish (Cyprinus carpio) Infected with Edwardsiella tarda","authors":"Ida Ayu Kade Wimala Niti, Maftuch Maftuch, R. Nurdiani","doi":"10.20473/jafh.v12i1.35024","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.35024","url":null,"abstract":"The increase in koi fish cultivation can lead to increase risks and caused problems. The main problem is high disease attacks caused by the bacteria Edwardsiella tarda. One of the alternatives to control the disease is immunostimulant treatment with the use of maggot, Hermetia illucens Larvae, known as Black Soldier Fly (BSF). This study aims to report the effect of maggot as a substitute for koi fish feed formulations on the immune system of koi fish infected with E. tarda. This study used a descriptive method, by quantitative approach with the IL-6 and IFN-Ɣ expression through RT-PCR analysis and fish survival rate (%). Identification of E. tarda was carried out by the PCR test method at a molecular weight of 200 bp. The density of bacteria that caused the death of the 50% koi fish population (LD50) for 72 hours was 107 cells/ml. The highest IL-6 expression in the spleen was found in sample C of 28,844 and the lowest in-sample K (+) of 26,096. The highest IL-6 expression in the liver was in sample K (+) of 29,060 and the lowest was in sample D of 25,428. The highest IFN-Ɣ in the spleen was in treatment C, 28,844, and the lowest was in treatment D, 27,219. The highest IFN-Ɣ in liver was sample K (+) of 26,795, and the lowest in-sample C of 25,615. The survival rate of fish in this study reached 30%-100%. The optimal amount of substitution of maggot treatment is 75% (Treatment C) of fish feed.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41482678","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.36945
P. Purwanto, Sarjito, D. Wijayanto
Vannamei shrimp culture is a fishery sub-sector that is being promoted by the Indonesian government. The vannamei shrimp culture great bussiness prospect makes many farmers to carry out these business activities. However, if the culture business is carried out in an environmentally unfriendly way, the sustainability of the business will stop. The purpose of this study is to determine the correct strategy for the development of vannamei shrimp culture in plastic ponds in Tegal Regency, Central Java. The research method used is the survey method with purposive sampling, the respondent sampling technique is non probability sampling and data collection with interviews, questionnaires, observation and documentation. The data obtained were analyzed descriptively and SWOT. The number of respondents was 38 people. The results indicated that the production of vannamei shrimp has decreased in the last three years due to Acute Hepato Pancreatic Necrosis Disease outbreak. A calculation matrix factor strategy internal (IFAS), strength (S) biggest are good and correct culture SOPs (0.349) and the calculation of the external strategy matrix (EFAS), opportunities (O) the largest is the large market goose p (0,293). Relationship factor occupy cell V, from effort the describe the situation growth and stability which means that the business is in a relatively stable condition and growth is likely to occur. Based on the SWOT analysis, the ranking of alternative strategies obtained is the SO strategy (Strengths – Opportunities) with total score of 3,602. Priority alternative strategy which used is optimizing the quality and quantity of products by using good and correct SOP, using technology, available infrastructure and availability of adequate seeds to produce quality and quantity of products so that continuity is maintained, so as to meet high market and consumer demand.
{"title":"Strategy for the Development of Sustainable Vannamei (Litopenaeus vannamei) Shrimp Culture in Plastic Ponds in Tegal Regency, Central Java","authors":"P. Purwanto, Sarjito, D. Wijayanto","doi":"10.20473/jafh.v12i1.36945","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.36945","url":null,"abstract":"Vannamei shrimp culture is a fishery sub-sector that is being promoted by the Indonesian government. The vannamei shrimp culture great bussiness prospect makes many farmers to carry out these business activities. However, if the culture business is carried out in an environmentally unfriendly way, the sustainability of the business will stop. The purpose of this study is to determine the correct strategy for the development of vannamei shrimp culture in plastic ponds in Tegal Regency, Central Java. The research method used is the survey method with purposive sampling, the respondent sampling technique is non probability sampling and data collection with interviews, questionnaires, observation and documentation. The data obtained were analyzed descriptively and SWOT. The number of respondents was 38 people. The results indicated that the production of vannamei shrimp has decreased in the last three years due to Acute Hepato Pancreatic Necrosis Disease outbreak. A calculation matrix factor strategy internal (IFAS), strength (S) biggest are good and correct culture SOPs (0.349) and the calculation of the external strategy matrix (EFAS), opportunities (O) the largest is the large market goose p (0,293). Relationship factor occupy cell V, from effort the describe the situation growth and stability which means that the business is in a relatively stable condition and growth is likely to occur. Based on the SWOT analysis, the ranking of alternative strategies obtained is the SO strategy (Strengths – Opportunities) with total score of 3,602. Priority alternative strategy which used is optimizing the quality and quantity of products by using good and correct SOP, using technology, available infrastructure and availability of adequate seeds to produce quality and quantity of products so that continuity is maintained, so as to meet high market and consumer demand.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47151534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.33282
A. Kurniawan, W. H. Siegers, Mohammad Aldrin Akbar, Imran Syafei M. Nur
The purpose of this study was to determine the survival rate (SR), the Average Daily Growth (ADG), and the Feed Conversion Ratio (FCR) of Nile tilapia (Oreochromis niloticus) with a dynamic system model. The dynamic system model is used to determine the optimal value of the three variables. The results showed that the survival rate, average daily growth, and feed conversion ratio of tilapia cultivation were 93% (SR), 3.2gr/day (ADG), 0.73 (FCR). In this research, tilapia production were 14,199gr, the amount of feed were 10.344gr and the length of cultivation were 65 days. It was hoped that the dynamic system model design could have tilapia farmers to develop aquaculture businesses that was more environmentally friendly, effective and efficient.
{"title":"The Production Model of Tilapia (Oreochromis niloticus) Cultivation with System Dynamics Approach","authors":"A. Kurniawan, W. H. Siegers, Mohammad Aldrin Akbar, Imran Syafei M. Nur","doi":"10.20473/jafh.v12i1.33282","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.33282","url":null,"abstract":"The purpose of this study was to determine the survival rate (SR), the Average Daily Growth (ADG), and the Feed Conversion Ratio (FCR) of Nile tilapia (Oreochromis niloticus) with a dynamic system model. The dynamic system model is used to determine the optimal value of the three variables. The results showed that the survival rate, average daily growth, and feed conversion ratio of tilapia cultivation were 93% (SR), 3.2gr/day (ADG), 0.73 (FCR). In this research, tilapia production were 14,199gr, the amount of feed were 10.344gr and the length of cultivation were 65 days. It was hoped that the dynamic system model design could have tilapia farmers to develop aquaculture businesses that was more environmentally friendly, effective and efficient.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43518275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.33445
Ekaete Patrick Anwa-Udondiah, I. O. Soboyejo, O. Okunade, B. M. Lawal, A. S. Aboluwodi, O. Oyeniyi
This paper presents an experiment in which two different fish culture system types were evaluated for the short-term commercial culture of fingerlings of Clarias gariepinus maintained at half the recommended stocking rate; 82.5/m3 in 2 m3 water volume in indoor blue fiber-glass tanks (IFT) and outdoor black plastic tanks (OPT). The research objectives were to assess the suitability and commercial viability of the tanks. Initial mean body weight of graded fingerlings of C. gariepinus for IFT and OPT were 11.32±2.25 g and 10.92±2.44 g (mean±standard deviation) respectively. The study lasted for eight weeks with the fish attaining post-juvenile sizes of 174.95±74.30 g and 178.84±52.04 g (mean±standard deviation) in the IFT and OPT respectively which were not significantly different at p > 0.05. Survival at termination was 81.21±0.0% and 81.21±2.5% for IFT and OPT respectively. As fish attained larger sizes of 100 g and above between weeks 6 and 8, skin lesions and frayed fins were observed in comparatively more of the indoor reared fish than the outdoor reared fish. It may be concluded that the systems are not vastly different in terms of resultant survival and growth performance of the African catfish, however, the culture duration may be halved when maintaining the reported stocking rate in order to prevent distress as a fallout of aggression as they increase in size.
{"title":"Suitability Assessment of Two Different Culture Systems for the Rearing of Clarias gariepinus Fingerlings","authors":"Ekaete Patrick Anwa-Udondiah, I. O. Soboyejo, O. Okunade, B. M. Lawal, A. S. Aboluwodi, O. Oyeniyi","doi":"10.20473/jafh.v12i1.33445","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.33445","url":null,"abstract":"This paper presents an experiment in which two different fish culture system types were evaluated for the short-term commercial culture of fingerlings of Clarias gariepinus maintained at half the recommended stocking rate; 82.5/m3 in 2 m3 water volume in indoor blue fiber-glass tanks (IFT) and outdoor black plastic tanks (OPT). The research objectives were to assess the suitability and commercial viability of the tanks. Initial mean body weight of graded fingerlings of C. gariepinus for IFT and OPT were 11.32±2.25 g and 10.92±2.44 g (mean±standard deviation) respectively. The study lasted for eight weeks with the fish attaining post-juvenile sizes of 174.95±74.30 g and 178.84±52.04 g (mean±standard deviation) in the IFT and OPT respectively which were not significantly different at p > 0.05. Survival at termination was 81.21±0.0% and 81.21±2.5% for IFT and OPT respectively. As fish attained larger sizes of 100 g and above between weeks 6 and 8, skin lesions and frayed fins were observed in comparatively more of the indoor reared fish than the outdoor reared fish. It may be concluded that the systems are not vastly different in terms of resultant survival and growth performance of the African catfish, however, the culture duration may be halved when maintaining the reported stocking rate in order to prevent distress as a fallout of aggression as they increase in size.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42142284","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-18DOI: 10.20473/jafh.v12i1.36877
Anggita Noer Laily, M. Fadjar, Y. Kilawati
Aquaculture activities cannot be separated from obstacles that can lead to failure of aquaculture, including the presence of microplastics. Microplastic polystyrene (styrofoam) is a type of plastic that is commonly found in aquatic organisms (35%). Microplastics in fish can cause hormonal disturbances and high vacuolation in gonads which can cause apoptosis in gonadal cells. This study aimed to determine the effect of microplastics exposure on catfish (Clarias gariepinus) feed on the gonadal histology of male catfish. The research design used an experimental method with a Completely Randomized Design (CRD) which was divided into four treatments and three replications, namely 3% of the feed rate with treatments A (5% microplastics), B (10% microplastics), C (15% microplastics), and K (0% microplastics). Microplastic exposure treatment was given to fish by mixing it with commercial feed for 30 days. The results showed that microplastic exposure had a significant effect on the 15th and 30th days of the study on the Gonad Maturity Level (GML) and Gonado Somatic Index (GSI) of male catfish (C. gariepinus) in treatments A, B and C compared to controls (K). Treatment C (Microplastics 15%) had the lowest GML and GSI values, while treatment K (Microplastics 0%) had the highest GML and GSI values. Treatments A, B, and C experienced changes and delays in the development of gonadal cell structure, while control (K) developed well. This is presumably because the nutritional needs of control fish (K) were more fulfilled than treatments A, B and C exposed to microplastics.
{"title":"Effect of Microplastic Exposures to The Male Gonad Histology of Catfish (Clarias gariepinus)","authors":"Anggita Noer Laily, M. Fadjar, Y. Kilawati","doi":"10.20473/jafh.v12i1.36877","DOIUrl":"https://doi.org/10.20473/jafh.v12i1.36877","url":null,"abstract":"Aquaculture activities cannot be separated from obstacles that can lead to failure of aquaculture, including the presence of microplastics. Microplastic polystyrene (styrofoam) is a type of plastic that is commonly found in aquatic organisms (35%). Microplastics in fish can cause hormonal disturbances and high vacuolation in gonads which can cause apoptosis in gonadal cells. This study aimed to determine the effect of microplastics exposure on catfish (Clarias gariepinus) feed on the gonadal histology of male catfish. The research design used an experimental method with a Completely Randomized Design (CRD) which was divided into four treatments and three replications, namely 3% of the feed rate with treatments A (5% microplastics), B (10% microplastics), C (15% microplastics), and K (0% microplastics). Microplastic exposure treatment was given to fish by mixing it with commercial feed for 30 days. The results showed that microplastic exposure had a significant effect on the 15th and 30th days of the study on the Gonad Maturity Level (GML) and Gonado Somatic Index (GSI) of male catfish (C. gariepinus) in treatments A, B and C compared to controls (K). Treatment C (Microplastics 15%) had the lowest GML and GSI values, while treatment K (Microplastics 0%) had the highest GML and GSI values. Treatments A, B, and C experienced changes and delays in the development of gonadal cell structure, while control (K) developed well. This is presumably because the nutritional needs of control fish (K) were more fulfilled than treatments A, B and C exposed to microplastics.","PeriodicalId":15127,"journal":{"name":"Journal of Aquaculture and Fish Health","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44085857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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