This system has been widely used to observe the standard of water used. Currently fish cultivation is in great demand due to the promising revenue, particularly on ... DOAJ is a community-curated on-line directory that indexes and provides entry to top quality, open access, peer-reviewed journals.
Statistical evaluation of 16 examined features revealed a constructive impact of the fish ponds on water quality. Concentrations of Ca2+, NO2-, NO3-, PO43- and water conductivity in the fish ponds decreased on common by between 30 and 99% as compared with the feeding watercourses. Date on the manufacturing and fish cath in accordance with species, on the surface of the fish ponds, on the technique of fish catching and on the distribution of the production and the catch in 1998 is introduced.
In this way of administration, aquaculture productiveness and water high quality are low, which is an obstacle for catfish farmers. This research was carried out by sustaining sangkuriang catfish seeds in spherical ponds with a diameter of two m2 with a density of 2000 tails per pond. The sangkuriang catfish seeds which were saved have reached a size of four cm and are treated with 2 different treatments between fermented and non-fermented ponds. This research was carried out for fifty five days from 16 July to 10 September 2018, on the Fisheries Laboratory of the University of Muhammadiyah Malang, East Java. The analysis technique used is an experimental method with this analysis carried out using descriptive strategies with 2 totally different remedies between fermented and non-fermented ponds. Water high quality management is carried out each three days with measurements of water high quality including temperature, pH, and DO.
Furthermore, so as to understand how massive the chances and impact of the danger are, Z-score and VaR analysis tool is used. Results from the research reveals that on the per interval per hetchery, the danger probability from fungi is 40 p.c, water quality forty four %, feeds 5 percent, and harvesting technic 4 p.c. The impression of the chance from fungi price is Rp 5 795, water high quality Rp four 937, feeds Rp and harvesting technic Rp three 736. Sangkuriang catfish is the primary commodity that broadly cultivated in Tasikmalaya City. However, farmers have issue due to the disease which causes death in fish.
The highest fecundity of sangkuriang catfish eggs was 65,760 eggs, the very best fecundity results had been from the sample which had a total 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 one hundred grams and a gonad weight of eight.seventy one grams. There is a relationship between fish weight and complete gonad weight with fecundity. Sangkuriang catfish has an egg diameter ranging from 1 mm–1.9 mm. Decision assist methods is a computer-based information system including a knowledge-based system or the management of information that's used to assist choice making in a company or particular person. Sangkuriang catfish is one freshwater fish species are cultivated commercially by the individuals of Indonesia.
It is critical for a merger of several disciplines to obtain optimum feed value. In the field of informatics, experiences to search for one of the best optimal feed . This research discusses the evaluation, evaluation and improvement of a choice assist system determine the best feed catfish enlargement lele sangkuriang adalah cost-effective. The aim of the research was to find out the effect of different larvae stocking density onthe development of fish catfish cultivated in cage net. A fully randomized design wasused in this research with, three remedies and three replications.
Statistical evaluation of 16 examined features revealed a constructive impact of the fish ponds on water quality. Concentrations of Ca2+, NO2-, NO3-, PO43- and water conductivity in the fish ponds decreased on common by between 30 and 99% as compared with the feeding watercourses. Date on the manufacturing and fish cath in accordance with species, on the surface of the fish ponds, on the technique of fish catching and on the distribution of the production and the catch in 1998 is introduced.
In this way of administration, aquaculture productiveness and water high quality are low, which is an obstacle for catfish farmers. This research was carried out by sustaining sangkuriang catfish seeds in spherical ponds with a diameter of two m2 with a density of 2000 tails per pond. The sangkuriang catfish seeds which were saved have reached a size of four cm and are treated with 2 different treatments between fermented and non-fermented ponds. This research was carried out for fifty five days from 16 July to 10 September 2018, on the Fisheries Laboratory of the University of Muhammadiyah Malang, East Java. The analysis technique used is an experimental method with this analysis carried out using descriptive strategies with 2 totally different remedies between fermented and non-fermented ponds. Water high quality management is carried out each three days with measurements of water high quality including temperature, pH, and DO.
Furthermore, so as to understand how massive the chances and impact of the danger are, Z-score and VaR analysis tool is used. Results from the research reveals that on the per interval per hetchery, the danger probability from fungi is 40 p.c, water quality forty four %, feeds 5 percent, and harvesting technic 4 p.c. The impression of the chance from fungi price is Rp 5 795, water high quality Rp four 937, feeds Rp and harvesting technic Rp three 736. Sangkuriang catfish is the primary commodity that broadly cultivated in Tasikmalaya City. However, farmers have issue due to the disease which causes death in fish.The highest fecundity of sangkuriang catfish eggs was 65,760 eggs, the very best fecundity results had been from the sample which had a total 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 one hundred grams and a gonad weight of eight.seventy one grams. There is a relationship between fish weight and complete gonad weight with fecundity. Sangkuriang catfish has an egg diameter ranging from 1 mm–1.9 mm. Decision assist methods is a computer-based information system including a knowledge-based system or the management of information that's used to assist choice making in a company or particular person. Sangkuriang catfish is one freshwater fish species are cultivated commercially by the individuals of Indonesia.
It is critical for a merger of several disciplines to obtain optimum feed value. In the field of informatics, experiences to search for one of the best optimal feed . This research discusses the evaluation, evaluation and improvement of a choice assist system determine the best feed catfish enlargement lele sangkuriang adalah cost-effective. The aim of the research was to find out the effect of different larvae stocking density onthe development of fish catfish cultivated in cage net. A fully randomized design wasused in this research with, three remedies and three replications.