High mortality in larvae emerges due to less suitable size and nutritional contents of the feed for larval requirement. Therefore, live feed management is one of the successive factors in many grouper hatcheries to reduce high mortality risk in larval stage and provide good nutritional value in fish. This article reviewed the feeding management of grouper larvae and the obstacles occurred during the feeding management within the larval rearing period in Buleleng, Bali. The grouper larvae were produced from the cross-breeding process between female tiger grouper (E. fuscoguttatus) and male marbled grouper (E. polyphekadion). Rotifers (Branchionus plicatilis) were enriched with marine green microalgae (Nannochloropsis oculata) at 2 × 105 ind/ml. Rotifers were then fed to the larvae at 1-3 ind/ml. This feeding application was performed when the larvae was at 2-7 DAH (days after hatching). Artemia salina was fed to the 17-DAH larvae at 0.2-0.5 ind/ml, then increased at 8 ind/ml as the larvae reached 27 DAH with four-time feeding frequency. Also, commercial feed was provided for the larvae at 15 DAH and small shrimp (Acetes sp.) was fed to the 40-DAH larvae for supplement. This feeding management could produce a good absolute length growth rate at 22.3 mm on 35 days of rearing. However, high mortality rate was still occurred due to cannibalism, high stocking density of rotifers, and fluctuated weather that decreased the live feed supply. Thus, additional nutrient enrichment and optimal larval consumption observation should be performed to reduce high mortality rate, cannibalism, and weather condition influence.
{"title":"THE FEEDING MANAGEMENT OF GROUPER (Epinephelus sp.) LARVAE FROM THE CROSS-BREEDING SPAWNING PRODUCT IN BULELENG BALI","authors":"Arina Sara Moutia","doi":"10.31002/jade.v6i1.7603","DOIUrl":"https://doi.org/10.31002/jade.v6i1.7603","url":null,"abstract":"High mortality in larvae emerges due to less suitable size and nutritional contents of the feed for larval requirement. Therefore, live feed management is one of the successive factors in many grouper hatcheries to reduce high mortality risk in larval stage and provide good nutritional value in fish. This article reviewed the feeding management of grouper larvae and the obstacles occurred during the feeding management within the larval rearing period in Buleleng, Bali. The grouper larvae were produced from the cross-breeding process between female tiger grouper (E. fuscoguttatus) and male marbled grouper (E. polyphekadion). Rotifers (Branchionus plicatilis) were enriched with marine green microalgae (Nannochloropsis oculata) at 2 × 105 ind/ml. Rotifers were then fed to the larvae at 1-3 ind/ml. This feeding application was performed when the larvae was at 2-7 DAH (days after hatching). Artemia salina was fed to the 17-DAH larvae at 0.2-0.5 ind/ml, then increased at 8 ind/ml as the larvae reached 27 DAH with four-time feeding frequency. Also, commercial feed was provided for the larvae at 15 DAH and small shrimp (Acetes sp.) was fed to the 40-DAH larvae for supplement. This feeding management could produce a good absolute length growth rate at 22.3 mm on 35 days of rearing. However, high mortality rate was still occurred due to cannibalism, high stocking density of rotifers, and fluctuated weather that decreased the live feed supply. Thus, additional nutrient enrichment and optimal larval consumption observation should be performed to reduce high mortality rate, cannibalism, and weather condition influence.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124483312","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}
Clownfish is one of the most demanding-marine ornamental fish. Due to the increased demand of the clownfish, wild clownfish catch has also been increasing, until reaching the overexploitation condition. One way to preserve the existence of this fish species and to sustainably fulfil the market demand is by conducting a culture technique with advanced application using a recirculating-aquaculture system, specifically larviculture. Thereby, this paper reported the procedure of the clownfish larviculture and determined the growth performance of the larvae during the culture activity. This paper reviewed the direct observational operation for 40 days at Rizky Mitra Karya Hatchery, Buleleng, Bali. All observational data were analyzed descriptively. During the culture, the process was composed of rearing media preparation, clownfish egg-clutch collecting and stocking, and larval rearing. This process also included the feeding management in each rearing part (broodstock and larval rearing), water quality control by setting the RAS standard and and harvest for juvenile rearing. However, the hatching rate was lower than the standard given. Egg collection with scrapping method produced a lower hatching rate due to more human error discovered. To gain a better improvement, rotifer as a live feed for clownfish larvae and fluctuated weather condition due to the seasonal transition, which impacted on the availability of live feed for clownfish larvae should be handled intensively. Therefore, proper live feed culture with indoor system, thorough live feed intake observation on larvae, and proper larvae stocking by directly taking from the broodstock tank are necessary to stabilize this culture production with high sustainability level.
{"title":"The Clownfish (Amphiprion spp.) Larviculture Technique with Recirculating Aquaculture System (RAS) in Buleleng, Bali","authors":"Shobrina Silmi Qori Tartila","doi":"10.31002/jade.v6i1.7602","DOIUrl":"https://doi.org/10.31002/jade.v6i1.7602","url":null,"abstract":"Clownfish is one of the most demanding-marine ornamental fish. Due to the increased demand of the clownfish, wild clownfish catch has also been increasing, until reaching the overexploitation condition. One way to preserve the existence of this fish species and to sustainably fulfil the market demand is by conducting a culture technique with advanced application using a recirculating-aquaculture system, specifically larviculture. Thereby, this paper reported the procedure of the clownfish larviculture and determined the growth performance of the larvae during the culture activity. This paper reviewed the direct observational operation for 40 days at Rizky Mitra Karya Hatchery, Buleleng, Bali. All observational data were analyzed descriptively. During the culture, the process was composed of rearing media preparation, clownfish egg-clutch collecting and stocking, and larval rearing. This process also included the feeding management in each rearing part (broodstock and larval rearing), water quality control by setting the RAS standard and and harvest for juvenile rearing. However, the hatching rate was lower than the standard given. Egg collection with scrapping method produced a lower hatching rate due to more human error discovered. To gain a better improvement, rotifer as a live feed for clownfish larvae and fluctuated weather condition due to the seasonal transition, which impacted on the availability of live feed for clownfish larvae should be handled intensively. Therefore, proper live feed culture with indoor system, thorough live feed intake observation on larvae, and proper larvae stocking by directly taking from the broodstock tank are necessary to stabilize this culture production with high sustainability level.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"106 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124226119","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}
Tilapia (Oreochromis niloticus) is one of the prospective freshwater fish producers to be developed in Indonesia. Tilapia is one of the freshwater fishcommodities that has received great attention from the fisheries because itis easy to breed, grows fast, and is tolerant to unfavorable environments. One ofthe problems of tilapia fish farmersis the high feed cost. The factor that affects the growth of fish is the nutritional content in the feed. To increase thegrowthoftilapia,qualityfeedisneeded.Oneeffortthatcanbedonetoincreasethe growth of tilapia is by combining commercial feed with A.microphylla. Thisstudyusedacompletelyrandomizeddesign(CRD)with4treatments,eachtreatment was repeated 5 times, with a treatment design P0 (100% pelleted feed),P1(75% pelleted feedwith25%A.microphylla),P2(50% pellet with50%A.microphylla,P3(25% pellet feedwith75%A.microphylla).Thevariablesobserved were Feed Conversion Ratio (FCR) and feed efficiency. The results ofstatistical analysis showed that the combination of feed resulted in significantlydifferent Feed Conversion Ratio and feed efficiency (p < 0.05). Tilapia fish FeedConversion Ratio with a higher increase in treatment P3 (2.1405) and a lowerdecreaseinP0(1.2296).Tilapiafeedefficiencywithahigherincreaseintreatment P0 (81%) and a lower decrease in P3 (43%). Values for the range ofwater quality vi parameters obtained were temperature 27.5 – 30.5 °C, pH 6.5-7.9,DO4 -5 mg/l, and ammonia 0 mg/l.
{"title":"The Effect Combination of Commercial Feed with Azolla Microphylla on Feed Conversion Ratio and Feed Efficiency of Tilapia Fish (Oreochromis niloticus)","authors":"irza aghnafairuz dzulkarnain","doi":"10.31002/jade.v6i1.7325","DOIUrl":"https://doi.org/10.31002/jade.v6i1.7325","url":null,"abstract":"Tilapia (Oreochromis niloticus) is one of the prospective freshwater fish producers to be developed in Indonesia. Tilapia is one of the freshwater fishcommodities that has received great attention from the fisheries because itis easy to breed, grows fast, and is tolerant to unfavorable environments. One ofthe problems of tilapia fish farmersis the high feed cost. The factor that affects the growth of fish is the nutritional content in the feed. To increase thegrowthoftilapia,qualityfeedisneeded.Oneeffortthatcanbedonetoincreasethe growth of tilapia is by combining commercial feed with A.microphylla. Thisstudyusedacompletelyrandomizeddesign(CRD)with4treatments,eachtreatment was repeated 5 times, with a treatment design P0 (100% pelleted feed),P1(75% pelleted feedwith25%A.microphylla),P2(50% pellet with50%A.microphylla,P3(25% pellet feedwith75%A.microphylla).Thevariablesobserved were Feed Conversion Ratio (FCR) and feed efficiency. The results ofstatistical analysis showed that the combination of feed resulted in significantlydifferent Feed Conversion Ratio and feed efficiency (p < 0.05). Tilapia fish FeedConversion Ratio with a higher increase in treatment P3 (2.1405) and a lowerdecreaseinP0(1.2296).Tilapiafeedefficiencywithahigherincreaseintreatment P0 (81%) and a lower decrease in P3 (43%). Values for the range ofwater quality vi parameters obtained were temperature 27.5 – 30.5 °C, pH 6.5-7.9,DO4 -5 mg/l, and ammonia 0 mg/l.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114832362","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}
Feed is an important factor in fish rearing. Basically, the feed given must be easily digested and have high nutrition. In fish farming, especially ornamental fish, natural feed is one of the supporting factors in the success of ornamental fish farming. Daphnia magna is one of the commonly used natural feeds for freshwater fish. Additives in the form of carophyll have the main composition of synthetic coloring materials, which are dominated by free astaxanthin (free astaxanthin) which can improve the quality of color in freshwater ornamental fish. The main parameters observed were natural food culture techniques, harvest and post-harvest, Damoph production process and the effectiveness of Dampoh on improving the color quality of freshwater ornamental fish. Based on observations made every week for approximately 2 months, the color brightness level of Albino Full Red guppies is getting brighter.
{"title":"PRODUCTION OF DRIED NATURAL FEED (Daphnia magna) WITH COMBINATION OF CAROPHYLL FOR FRESHWATER ORNAMENTAL FISH","authors":"L. B. Ritonga","doi":"10.31002/jade.v6i1.7485","DOIUrl":"https://doi.org/10.31002/jade.v6i1.7485","url":null,"abstract":"Feed is an important factor in fish rearing. Basically, the feed given must be easily digested and have high nutrition. In fish farming, especially ornamental fish, natural feed is one of the supporting factors in the success of ornamental fish farming. Daphnia magna is one of the commonly used natural feeds for freshwater fish. Additives in the form of carophyll have the main composition of synthetic coloring materials, which are dominated by free astaxanthin (free astaxanthin) which can improve the quality of color in freshwater ornamental fish. The main parameters observed were natural food culture techniques, harvest and post-harvest, Damoph production process and the effectiveness of Dampoh on improving the color quality of freshwater ornamental fish. Based on observations made every week for approximately 2 months, the color brightness level of Albino Full Red guppies is getting brighter.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"146 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121081898","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}
Blue crab is one of the fishery commodities that should be preserved because of the increasing market demand so that the selling price of crabs increases every year. Blue crab seed maintenance techniques are very necessary in the cultivation of blue crab seeds to support the continuous availability of seeds and be able to meet market demand. The main parameters observed in this study were growth monitoring and survival rate. Growth monitoring started from the zoea stage to the carblet, which at the blue crab carblet stage was 0.5-1 cm in size. The survival rate value is 3.33%. The water quality value obtained at the time of the study were pH 7.43-7.9, temperature 20,9-33,90C, DO 4,39-6,6 mg/l and salinity 15-30 ppt.
{"title":"REARING TECHNIQUE OF CRAFT SEED (Portunus pelgicus linn) AT THE BRACKISHWATER FISHERIES DEVELOPMENT CENTER (BBPBAP) JEPARA","authors":"L. B. Ritonga","doi":"10.31002/jade.v6i1.7346","DOIUrl":"https://doi.org/10.31002/jade.v6i1.7346","url":null,"abstract":"Blue crab is one of the fishery commodities that should be preserved because of the increasing market demand so that the selling price of crabs increases every year. Blue crab seed maintenance techniques are very necessary in the cultivation of blue crab seeds to support the continuous availability of seeds and be able to meet market demand. The main parameters observed in this study were growth monitoring and survival rate. Growth monitoring started from the zoea stage to the carblet, which at the blue crab carblet stage was 0.5-1 cm in size. The survival rate value is 3.33%. The water quality value obtained at the time of the study were pH 7.43-7.9, temperature 20,9-33,90C, DO 4,39-6,6 mg/l and salinity 15-30 ppt.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130691429","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}
M. S. Dadiono, Rudy Wijaya, M. Palupi, R. Fitriadi, R. Kusuma
Before undertaking the cultivation of eel (Monopterus albus) in clear water to obtain optimal results, it is necessary to conduct a business feasibility analysis simulation study. This study aims to determine the feasibility analysis simulation of eel cultivation in clear water as an illustration to start aquaculture business. The method used in this study is a literature review or library research, where the data collection method is entirely with secondary data or literature study. Secondary data is collected by reviewing from references in the form of journals, books and online articles that are still related. The calculation of business feasibility analysis is carried out by calculating investment costs, fixed costs, variable costs, calculating production costs, revenues, R/C Ratio and PBP. The results of the calculation of the business feasibility simulation show that the production cost is Rp. 12,921,000/year, revenue of Rp. 25,350,000/year, a profit of Rp. 21,043,000, R/C Ratio of 1.6 and PBP (Payback Period) of 0.008 where the investment capital for eel cultivation will return in less than 1 year. Therefore, the eel cultivation business in the first quarter of 2022 can be said to be profitable and feasible.
{"title":"FEASIBILITY SIMULATION OF EEL (Monopterus albus) CULTIVATION IN CLEAR WATER","authors":"M. S. Dadiono, Rudy Wijaya, M. Palupi, R. Fitriadi, R. Kusuma","doi":"10.31002/jade.v5i2.6678","DOIUrl":"https://doi.org/10.31002/jade.v5i2.6678","url":null,"abstract":"Before undertaking the cultivation of eel (Monopterus albus) in clear water to obtain optimal results, it is necessary to conduct a business feasibility analysis simulation study. This study aims to determine the feasibility analysis simulation of eel cultivation in clear water as an illustration to start aquaculture business. The method used in this study is a literature review or library research, where the data collection method is entirely with secondary data or literature study. Secondary data is collected by reviewing from references in the form of journals, books and online articles that are still related. The calculation of business feasibility analysis is carried out by calculating investment costs, fixed costs, variable costs, calculating production costs, revenues, R/C Ratio and PBP. The results of the calculation of the business feasibility simulation show that the production cost is Rp. 12,921,000/year, revenue of Rp. 25,350,000/year, a profit of Rp. 21,043,000, R/C Ratio of 1.6 and PBP (Payback Period) of 0.008 where the investment capital for eel cultivation will return in less than 1 year. Therefore, the eel cultivation business in the first quarter of 2022 can be said to be profitable and feasible.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132039166","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}
Ananda Putri Arofah, Fenny Diyah Retnosari, Naila Nur Fauziah, W. Isroni
Cultivating PEARL catfish in the Parikesit Community Group, Sumurgung Village, Tuban District, Tuban Regency, East Java, goes through several stages, such as seeding, enlargement, and water quality management. Hatchery starts from parent maintenance, spawning, and seed maintenance. Enlargement is the stage of raising the seeds to consumption size. Feed with nutritional content can meet the needs of fish. Water quality management is also carried out so that pool water remains optimal and minimizes disease. The aim is to understand and know, as well as the business prospects contained in the cultivation of PEARL catfish (Clarias sp.). The field practice method uses descriptive methods, by observing and following all the activities of PEARL catfish (Clarias sp.) cultivation techniques. Parent maintenance in a concrete pond measuring 4.5 m x 4 m, 6 males and 11 females. Pool preparation by removing the water, cleaning the pool walls, and refilling the pond water. The success of the fertilized egg can reach an FR value of 85.84%. The enlargement technique was carried out in a round tarpaulin pond with a diameter of 3 m, media preparation by spreading krosok salt and probiotics, grading was carried out once a week, and growth monitoring. The feed given to Pearl catfish was natural food Tubifex sp. and artificial feed in the form of PF100, PF500, and PF1000. Water quality management was carried out to maintain water quality to remain stable with regular water changed and calcification of ponds.
{"title":"CULTIVATION TECHNIQUES OF PEARL CATFISH (Clarias sp.) IN THE PARIKESIT COMMUNITY GROUP OF SUMURGUNG VILLAGE, TUBAN DISTRICT, TUBAN DISTRICT, EAST JAVA","authors":"Ananda Putri Arofah, Fenny Diyah Retnosari, Naila Nur Fauziah, W. Isroni","doi":"10.31002/jade.v5i2.7134","DOIUrl":"https://doi.org/10.31002/jade.v5i2.7134","url":null,"abstract":"Cultivating PEARL catfish in the Parikesit Community Group, Sumurgung Village, Tuban District, Tuban Regency, East Java, goes through several stages, such as seeding, enlargement, and water quality management. Hatchery starts from parent maintenance, spawning, and seed maintenance. Enlargement is the stage of raising the seeds to consumption size. Feed with nutritional content can meet the needs of fish. Water quality management is also carried out so that pool water remains optimal and minimizes disease. The aim is to understand and know, as well as the business prospects contained in the cultivation of PEARL catfish (Clarias sp.). The field practice method uses descriptive methods, by observing and following all the activities of PEARL catfish (Clarias sp.) cultivation techniques. Parent maintenance in a concrete pond measuring 4.5 m x 4 m, 6 males and 11 females. Pool preparation by removing the water, cleaning the pool walls, and refilling the pond water. The success of the fertilized egg can reach an FR value of 85.84%. The enlargement technique was carried out in a round tarpaulin pond with a diameter of 3 m, media preparation by spreading krosok salt and probiotics, grading was carried out once a week, and growth monitoring. The feed given to Pearl catfish was natural food Tubifex sp. and artificial feed in the form of PF100, PF500, and PF1000. Water quality management was carried out to maintain water quality to remain stable with regular water changed and calcification of ponds.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124841401","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}
{"title":"Monitoring of Water Quality on Rearing Intensive Ponds of Vannamei Shrimp (Litopenaeus vannamei) in CV. Tirta Makmur Abadi Lombang","authors":"L. B. Ritonga, A. Asmarany","doi":"10.31002/jade.v5i2.7179","DOIUrl":"https://doi.org/10.31002/jade.v5i2.7179","url":null,"abstract":"","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122428758","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}
L. B. Ritonga, A. A. Aonullah, Heni Wardania Rakhma
Wader fish is one of the endemic fish that has the potential to be developed, for this reason it is necessary to cultivate wader fish so that the availability of wader fish is continuous and can meet market needs. One way to produce seeds is by spawning. The main parameters observed in this study were fertilization rate, hatching rate and survival rate. The value of the fertilization rate in spawning is 70%. The hatching rate in spawning was 68% and survival rate for spawning was 47%. The water quality value obtained at the time of the study were pH 6.7-7.4, temperature 26.5-29.50C and DO 5.23-7.33 mg/l.
{"title":"FISH HATCHERY TECHNIQUE OF WADER PARI (Cyprinus carpio) IN CULTIVATION FISHERIES INSTALLATION KEPANJEN MALANG JAWA TIMUR","authors":"L. B. Ritonga, A. A. Aonullah, Heni Wardania Rakhma","doi":"10.31002/jade.v5i2.6817","DOIUrl":"https://doi.org/10.31002/jade.v5i2.6817","url":null,"abstract":"Wader fish is one of the endemic fish that has the potential to be developed, for this reason it is necessary to cultivate wader fish so that the availability of wader fish is continuous and can meet market needs. One way to produce seeds is by spawning. The main parameters observed in this study were fertilization rate, hatching rate and survival rate. The value of the fertilization rate in spawning is 70%. The hatching rate in spawning was 68% and survival rate for spawning was 47%. The water quality value obtained at the time of the study were pH 6.7-7.4, temperature 26.5-29.50C and DO 5.23-7.33 mg/l.","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117081377","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}
Vaname shrimp cultivation in Indonesia is currently the mainstay of the aquaculture sector, in the 2012 - 2018 period, the contribution of the export value of vaname shrimp to the export value of Indonesian fisheries averaged 36.27%. The production of cultivated shrimp nationally has increased rapidly in the last 5 years with an average annual increase of 10.38%. To increase the production of vaname shrimp, it is necessary to observe the factors that can accelerate the level of gonadal maturity and embryogenesis in vaname shrimp. One of the environmental factors that affect the level of gonadal maturity and embryogenesis is temperature, temperature affects the sinus glands to accelerate the development of gonadal maturity levels, temperature also affects the process of embryo development, at high temperatures the shrimp metabolism rate increases and embryo development occurs more quickly. This research is experimental by using a Completely Randomized Design (CRD).This studyused four treatments, namely four temperature treatments, including 28°C, 30°C,32°C, and 34°C. The results of the study were analyzed using ANOVA (Analysis ofVariance) and continued with Duncan's Multiple Range Test. The results of thisstudy indicate that temperature differences affect the level of gonadal maturity level (GML) and embryogenesis in the spawning process of vaname shrimp (Litopenaeus vannamei) broodstock (p<0.05). The treatment that had a major influence on the level of gonadal maturity level (GML) was the 34°C treatment with 8 days and the fastestembryogenesistreatmentat 34°C with 387.3minutes
{"title":"The Effect of Temperature Differences on The Gonad Maturity Levels and Embryogenesis of Vaname Shrimp Broodstock (Litopenaeus vannamei)","authors":"Sultan Wiguna Dinata, E. Masithah, W. Isroni","doi":"10.31002/jade.v5i2.7290","DOIUrl":"https://doi.org/10.31002/jade.v5i2.7290","url":null,"abstract":"Vaname shrimp cultivation in Indonesia is currently the mainstay of the aquaculture sector, in the 2012 - 2018 period, the contribution of the export value of vaname shrimp to the export value of Indonesian fisheries averaged 36.27%. The production of cultivated shrimp nationally has increased rapidly in the last 5 years with an average annual increase of 10.38%. To increase the production of vaname shrimp, it is necessary to observe the factors that can accelerate the level of gonadal maturity and embryogenesis in vaname shrimp. One of the environmental factors that affect the level of gonadal maturity and embryogenesis is temperature, temperature affects the sinus glands to accelerate the development of gonadal maturity levels, temperature also affects the process of embryo development, at high temperatures the shrimp metabolism rate increases and embryo development occurs more quickly. This research is experimental by using a Completely Randomized Design (CRD).This studyused four treatments, namely four temperature treatments, including 28°C, 30°C,32°C, and 34°C. The results of the study were analyzed using ANOVA (Analysis ofVariance) and continued with Duncan's Multiple Range Test. The results of thisstudy indicate that temperature differences affect the level of gonadal maturity level (GML) and embryogenesis in the spawning process of vaname shrimp (Litopenaeus vannamei) broodstock (p<0.05). The treatment that had a major influence on the level of gonadal maturity level (GML) was the 34°C treatment with 8 days and the fastestembryogenesistreatmentat 34°C with 387.3minutes","PeriodicalId":250719,"journal":{"name":"Journal of Aquaculture Development and Environment","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128705666","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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