scholarly journals APPLICATION OF DEPOSITION BACK IN THE AQUAPONIC SYSTEM IN REDUCING NH3 IN CULTIVATION Tilapia (Oreochromis niloticus)

2021 ◽  
Vol 26 (2) ◽  
pp. 131
Author(s):  
Hotlan Albert Adventus Sitompul ◽  
Eko Efendi ◽  
Agus Setyawan
Keyword(s):  
Oreochromis Niloticus ◽  
Water Exchange ◽  
Fish Farming ◽  
Fish Culture ◽  
Quality Of Water ◽  
Aquaculture Waste

The success of a culture depends on the quantity and quality of water used in fish culture without water exchange, the concentration of aquaculture waste such as ammonia (NH3) will increase very rapidly and is toxic to the cultivated organism. One of the innovations applied in fish farming is integrating plants through an aquaponics system. This study aims to determine the effect of using a settling tub in reducing ammonia waste (NH3) and growth in tilapia aquaculture using an aquaponic tidal system. The size of the initial tilapia seeds used is 3-4 cm. There are two treatments used, without settling tub (A) and addition of settling tub (B) with three replications. However, the results showed no significant differences (P>0.05) between treatments for all parameters observed. It is necessary to carry out further research on different fish and plants to see the optimization in reducing ammonia waste (NH3).

Polycultural System of Freshwater Fish in China

1982 ◽  
Vol 39 (1) ◽  
pp. 143-150 ◽  
Author(s):  
Lin Hao-Ren
Keyword(s):  
Large Scale ◽  
Feeding Habits ◽  
Fish Culture ◽  
Scale Production ◽  
Conventional Agriculture ◽  
Quality Of Water ◽  
Large Scale Production ◽  
Major Development ◽  
Lh Rh

China is a country in which fish culture is closely integrated with conventional agriculture. Its success depends on the firm base of traditional practices as well as the introduction of many innovations. Among them, polyculture is probably the most important reason for fish culture's success. The major advantage of polyculture is to utilize fully the space and food available in the pond and to optimize interactions between compatible species with different feeding habits and ecology. The different types of polycultural pond stocking are adapted in accordance with (1) the climate, (2) quality of water supply and fertility of pond, (3) availability of fish fry and fingerlings, (4) availability of food and fertilizer, and (5) market requirements. The artificial propagation of cultured fishes and large-scale production of fry and fingerlings are the major development of Chinese fish culture in recent years. The application of LH–RH analogue as a new highly effective ovulating agent for fish reproduction has been carried furthest in China.Key words: China, fish polyculture, Chinese carp, induced spawning, LH–RH analogue, fry, fingerling, fish production

scholarly journals Provision Study of Lactobacillus spp. and Barley Straw Against Dynamics of DO, pH and Plankton Abundance

2020 ◽  
Vol 9 (1) ◽  
pp. 41
Author(s):  
Silvi Hardiyana ◽  
Boedi Rahardja Setya Rahardja ◽  
EndangMasithah Dewi Masithah
Keyword(s):  
Research Study ◽  
Fish Farming ◽  
Barley Straw ◽  
Remedial Action ◽  
Positive Bacterium ◽  
Quality Of Water ◽  
Algae Growth ◽  
Lactobacillus Spp

Fish farming activities in recent years, many shows water quality conditions do not support fish life are maintained optimally and decreases the carrying capacity, one DO and pH parameters. As a remedial action is carried out either by probiotic bacteria One commonly used in the application of probiotics is Lactobacillus spp. Gram positive bacterium Lactobacillus spp. widely used as probiotics to improve the quality of air Penggunaan Lactobacillus spp. is expected to improve the quality of water that is accelerating the overhaul of organic material in the water and suppress harmful microorganisms that can affect the dynamics of DO, pH and increasing nutrient waters. Barley straw is a powdered extract of hay-producing H2O2 which serves to inhibit the growth of microalgae. The use of straw extract powder has become more common as an alternative method for controlling excessive algae growth by blocking and not get rid of it so that stabilization of the abundance of plankton in the water can be controlled well.To study the role of Lactobacillus spp. and barley straw in the management of organic matter and plankton abundance Giving a research study Lactobacillus spp. and barley straw to the dynamics of DO, pH and Abundance of Plankton.

scholarly journals KUALITAS PAKAN FERMENTATIF BERBAHAN KULIT UBI KAYU DENGAN INOKULAN MEP+ UNTUK KULTUR IKAN NILA GESIT (Oreochromis niloticus L.)

2014 ◽  
Vol 1 (2) ◽  
pp. 141
Author(s):  
Cahiadir Ali Akbar ◽  
Sukanto Sukanto ◽  
Siti Rukayah
Keyword(s):  
Oreochromis Niloticus ◽  
Low Cost ◽  
Fish Farming ◽  
Progressive Increase ◽  
Appropriate Technology ◽  
High Price ◽  
Nutrient Contents ◽  
Significant Difference ◽  
Local Materials

Feed is a major component in fish farming. However, the relatively high price of feed is very burdensome for fish farmers. Therefore a relatively low-cost solution is needed to address that problem. The use of local materials such as bran, waste mushroom, tofu, onggok starch, and skin cassava can be utilized as an alternative to reduce the needs of imported materials. However, the local materials have constraints regarding nutrition and digestibility, so an appropriate technology is required to overcome this. Improving the quality of the feed can be done by fermentation. Fermentation works by breaking macromolecules such as carbohydrates and amino acids into micromolecules, so the absorption of feed nutrients in the fish intestines become more efficient. The use of inoculants MEP+ aimed to improve the digestibility of feed, detoxification and increased the productivity of tilapia GESIT (Oreochromis niloticus). This study aimed to determine the effect of fermentation on enhancing the quality of feed nutrients made from cassava skin chips by the application of inoculant MEP+. The study was carried out experimentally using a complete randomized design. The independent variable in this study was the type of feed. Observed dependent variable was feed quality. The main parameter measured was the proximate level. Supporting parameter was the growth of tilapia GESIT. The results showed a progressive increase in the levels of nutrients of feed fermented in each treatment. The increments were recorded in treatment A from 16.15 became 21.64, in B from 13.21 became 15.46, in C from 9.66 became 11.53, and in D from 8.34 became 9.87. This result implies that the use of MEP+ fermentation inoculants could boost the nutritional content of food, with an average of the increment value of 11-15%. The increment of nutrient contents in each treatment was also affected the weight gain of fish although no significant difference were observed.

scholarly journals Features of the water treatment technology of fish breeding plants in the southern region of the Russian Federation using agricultural waste

2020 ◽  
Vol 175 ◽  
pp. 02009
Author(s):  
Nikolai Serpokrylov ◽  
Alla Smolyanichenko ◽  
Sergei Starovoitov
Keyword(s):  
New Technologies ◽  
Agricultural Waste ◽  
Fish Farming ◽  
Recycled Water ◽  
Treatment Technology ◽  
Quality Of Water ◽  
The Russian Federation ◽  
Pollution Concentrations ◽  
Degree Of Purification

One of the main reasons for the decline in fish numbers is the insufficient quality of water used in hatcheries. The degree of purification of recycled water does not meet the requirements for water in pools. Thus, in order to reduce pollution concentrations, it is necessary to develop new technologies for the treatment of recycled water from fish farming plants, including through the integration of a lighting and aeration plant into them, as well as a sorption unit using agricultural waste, namely rice straw

Reflecting the Sky in Water

2017 ◽  
Vol 3 (1) ◽  
pp. 112-126 ◽  
Author(s):  
Ilaria Cristofaro
Keyword(s):  
The Unconscious ◽  
Related Case ◽  
Quality Of Water ◽  
Fluid Properties ◽  
Phenomenological Perspective ◽  
Auto Ethnography ◽  
The Individual ◽  
Artificial Water ◽  
Land Water

From a phenomenological perspective, the reflective quality of water has a visually dramatic impact, especially when combined with the light of celestial phenomena. However, the possible presence of water as a means for reflecting the sky is often undervalued when interpreting archaeoastronomical sites. From artificial water spaces, such as ditches, huacas and wells to natural ones such as rivers, lakes and puddles, water spaces add a layer of interacting reflections to landscapes. In the cosmological understanding of skyscapes and waterscapes, a cross-cultural metaphorical association between water spaces and the underworld is often revealed. In this research, water-skyscapes are explored through the practice of auto-ethnography and reflexive phenomenology. The mirroring of the sky in water opens up themes such as the continuity, delimitation and manipulation of sky phenomena on land: water spaces act as a continuation of the sky on earth; depending on water spaces’ spatial extension, selected celestial phenomena can be periodically reflected within architectures, so as to make the heavenly dimension easily accessible and a possible object of manipulation. Water-skyscapes appear as specular worlds, where water spaces are assumed to be doorways to the inner reality of the unconscious. The fluid properties of water have the visual effect of dissipating borders, of merging shapes, and, therefore, of dissolving identities; in the inner landscape, this process may represent symbolic death experiences and rituals of initiation, where the annihilation of the individual allows the creative process of a new life cycle. These contextually generalisable results aim to inspire new perspectives on sky-and-water related case studies and give value to the practice of reflexive phenomenology as crucial method of research.

Chất lượng nước ở Bắc Bình dựa trên các kết quả phân tích hóa học và vi sinh

2018 ◽  
Vol 28 (4) ◽  
pp. 484-497
Author(s):  
Phan Thị Kim Văn ◽  
Bùi Trần Vượng
Keyword(s):  
Quality Of Water ◽  
Microbiological Analyses

The quality of water in Bac Binh according to chemical and microbiological analyses

Spatial and Temporal variation analysis of water quality of Hemavathi River, Karnataka, India

2018 ◽  
Vol 6 (9) ◽  
pp. 196
Author(s):  
Santhosh K. M ◽  
S. Prashanth
Keyword(s):  
Water Quality ◽  
Agricultural Runoff ◽  
Spatial And Temporal Variation ◽  
Final Conclusion ◽  
Variation Analysis ◽  
Pollution Load ◽  
Quality Of Water ◽  
Pollution Loading ◽  
Origin Point

Urban development, agricultural runoff and industrialization have contributed pollution loading on the environment.  In this study Hemavathi river water from a stretch from its origin point to its sangama was studied for pollution load by determining parameters of water quality like pH, Alkalinity,  Ca, Mg, Nitrate, TDS, BOD, COD , and the results were compared with WHO and BIS standards to draw final conclusion on the quality of water.

Physico-Chemical Analysis of Groundwater and Effect of Climatic Change in Angul-Talcher Area

2018 ◽  
Vol 6 (12) ◽  
pp. 26
Author(s):  
Aliva Bera ◽  
D.P. Satapathy
Keyword(s):  
Water Resources ◽  
Linear Regression ◽  
Regression Model ◽  
Climatic Change ◽  
Linear Regression Model ◽  
Ann Model ◽  
Quality Of Water ◽  
Physico Chemical ◽  
Simulation Based

In this paper, the linear regression model using ANN and the linear regression model using MS Excel were developed to estimate the physico-chemical concentrations in groundwater using pH, EC, TDS, TH, HCO3 as input parameters and Ca, Mg and K as output parameters. A comparison was made which indicated that ANN model had the better ability to estimate the physic-chemical concentrations in groundwater. An analytical survey along with simulation based tests for finding the climatic change and its effect on agriculture and water bodies in Angul-Talcher area is done. The various seasonal parameters such as pH, BOD, COD, TDS,TSS along with heavy elements like Pb, Cd, Zn, Cu, Fe, Mn concentration in water resources has been analyzed. For past 30 years rainfall data has been analyzed and water quality index values has been studied to find normal and abnormal quality of water resources and matlab based simulation has been done for performance analysis. All results has been analyzed and it is found that the condition is stable. 

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