This system has been extensively used to observe the quality of water used. Currently fish cultivation is in nice demand due to the promising earnings, especially on ... DOAJ is a community-curated online listing that indexes and offers entry to top quality, open entry, peer-reviewed journals.
Statistical analysis of sixteen tested features revealed a constructive effect of the fish ponds on water high quality. Concentrations of Ca2+, NO2-, NO3-, PO43- and water conductivity in the fish ponds decreased on average by between 30 and 99% compared with the feeding watercourses. Date on the production and fish cath in accordance with species, on the floor cara peternakan ikan lele of the fish ponds, on the means of fish catching and on the distribution of the production and the catch in 1998 is offered.
In this fashion of administration, aquaculture productivity and water high quality are low, which is an obstacle for catfish farmers. This research was carried out by maintaining sangkuriang catfish seeds in round ponds with a diameter of two m2 with a density of 2000 tails per pond. The sangkuriang catfish seeds which have been kept have reached a length of four cm and are treated with 2 completely different therapies between fermented and non-fermented ponds. This research was carried out for 55 days from sixteen July to 10 September 2018, on the Fisheries Laboratory of the University of Muhammadiyah Malang, East Java. The research technique used is an experimental methodology with this analysis performed using descriptive methods with 2 completely different treatments between fermented and non-fermented ponds. Water high quality administration is carried out every 3 days with measurements of water high quality including temperature, pH, and DO.
Furthermore, in order to perceive how big the chances and impact of the risk are, Z-score and VaR analysis tool is used. Results from the analysis shows that on the per interval per hetchery, the risk chance from fungi is 40 percent, water high quality 44 percent, feeds 5 %, and harvesting technic four %. The influence of the danger from fungi price is Rp 5 795, water quality Rp 4 937, feeds Rp and harvesting technic Rp 3 736. Sangkuriang catfish is the primary commodity that widely cultivated in Tasikmalaya City. However, farmers have issue because of the disease which causes demise in fish.
The highest fecundity of sangkuriang catfish eggs was 65,760 eggs, the best fecundity results had been from the pattern which had a complete fish size of 32 cm, a fish weight of 220 grams and a gonad weight of 19.7 grams. The lowest fecundity of 20,606 grains was obtained from samples that had a complete fish size of 27 cm, a fish weight of 100 grams and a gonad weight of eight.seventy one grams. There is a relationship between fish weight and total gonad weight with fecundity. Sangkuriang catfish has an egg diameter ranging from 1 mm–1.9 mm. Decision assist techniques is a computer-based information system together with a knowledge-based system or the administration of information that is used to assist decision making in an organization or particular person. Sangkuriang catfish is one freshwater fish species are cultivated commercially by the individuals of Indonesia.
It is necessary for a merger of a number of disciplines to obtain optimal feed worth. In the sphere of informatics, experiences to look for one of the best optimum feed . This research discusses the assessment, evaluation and development of a choice support system determine the most effective feed catfish enlargement sangkuriang cost-effective. The goal of the research was to determine the effect of different larvae stocking density onthe progress of fish catfish cultivated in cage internet. A fully randomized design wasused on this research with, three remedies and three replications.
Statistical analysis of sixteen tested features revealed a constructive effect of the fish ponds on water high quality. Concentrations of Ca2+, NO2-, NO3-, PO43- and water conductivity in the fish ponds decreased on average by between 30 and 99% compared with the feeding watercourses. Date on the production and fish cath in accordance with species, on the floor cara peternakan ikan lele of the fish ponds, on the means of fish catching and on the distribution of the production and the catch in 1998 is offered.
In this fashion of administration, aquaculture productivity and water high quality are low, which is an obstacle for catfish farmers. This research was carried out by maintaining sangkuriang catfish seeds in round ponds with a diameter of two m2 with a density of 2000 tails per pond. The sangkuriang catfish seeds which have been kept have reached a length of four cm and are treated with 2 completely different therapies between fermented and non-fermented ponds. This research was carried out for 55 days from sixteen July to 10 September 2018, on the Fisheries Laboratory of the University of Muhammadiyah Malang, East Java. The research technique used is an experimental methodology with this analysis performed using descriptive methods with 2 completely different treatments between fermented and non-fermented ponds. Water high quality administration is carried out every 3 days with measurements of water high quality including temperature, pH, and DO.Furthermore, in order to perceive how big the chances and impact of the risk are, Z-score and VaR analysis tool is used. Results from the analysis shows that on the per interval per hetchery, the risk chance from fungi is 40 percent, water high quality 44 percent, feeds 5 %, and harvesting technic four %. The influence of the danger from fungi price is Rp 5 795, water quality Rp 4 937, feeds Rp and harvesting technic Rp 3 736. Sangkuriang catfish is the primary commodity that widely cultivated in Tasikmalaya City. However, farmers have issue because of the disease which causes demise in fish.
The highest fecundity of sangkuriang catfish eggs was 65,760 eggs, the best fecundity results had been from the pattern which had a complete fish size of 32 cm, a fish weight of 220 grams and a gonad weight of 19.7 grams. The lowest fecundity of 20,606 grains was obtained from samples that had a complete fish size of 27 cm, a fish weight of 100 grams and a gonad weight of eight.seventy one grams. There is a relationship between fish weight and total gonad weight with fecundity. Sangkuriang catfish has an egg diameter ranging from 1 mm–1.9 mm. Decision assist techniques is a computer-based information system together with a knowledge-based system or the administration of information that is used to assist decision making in an organization or particular person. Sangkuriang catfish is one freshwater fish species are cultivated commercially by the individuals of Indonesia.
It is necessary for a merger of a number of disciplines to obtain optimal feed worth. In the sphere of informatics, experiences to look for one of the best optimum feed . This research discusses the assessment, evaluation and development of a choice support system determine the most effective feed catfish enlargement sangkuriang cost-effective. The goal of the research was to determine the effect of different larvae stocking density onthe progress of fish catfish cultivated in cage internet. A fully randomized design wasused on this research with, three remedies and three replications.