scholarly journals effect of dissolved oxygen on common carp (Cyprinus carpio) and basil (Ocimum basilicum) in the aquaponics system

2021 ◽  
pp. 89-96
Author(s):  
Dávid Homoki ◽  
Toviho Odunayo ◽  
Dániel Minya ◽  
László Kovács ◽  
Judit Lelesz ◽  
...  
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Ocimum Basilicum ◽  
Integrated System ◽  
The Other ◽  
Plant Production ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio

Aquaponics is an integrated system that combines fish farming (aquaculture) and hydroponic plant production. The objective of this study was to examine how the level of dissolved oxygen with or without an air pump affects water quality, fish output and plant growth parameters for common carp (Cyprinus carpio) and basil (Ocimum basilicum). Ebb – and flood aquaponics systems (with automatic syphon) was used. Two treatments were set in this experiment, one of which was the aquaponics system without air pump (unit I), where water of the plant bed was pumped two directions, one falling back to the fish tank oxygenating the water the other was pumped to the hydroponics unit. The other system (unit II) was designed with an air pump. In the course of the study, water quality parameters, such as oxygen saturation, dissolved oxygen (DO), electrical conductivity (EC) and nitrite were significantly different (p<0.05). Total basil biomass was higher in unit II. (5367.41 g). The final biomass of common carp were 2829.45 g ± 79.24 and 2980.6 g ± 64.13 g in unit I and unit II respectively. Weight gain (WG) and specific growth rate (SGR) showed no significant differences (p>0.05) between the treatments. 

scholarly journals Effects of Different Fish Diets on the Water Quality in Semi-Intensive Common Carp (Cyprinus carpio) Farming

Water ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1215
Author(s):  
László Berzi-Nagy ◽  
Attila Mozsár ◽  
Flórián Tóth ◽  
Dénes Gál ◽  
Zoltán Nagy ◽  
...  
Keyword(s):  
Water Quality ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Nutrient Loading ◽  
Fish Meal ◽  
Pond Water ◽  
Long Term Effects ◽  
Plant Oil ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio

Semi-intensive common carp (Cyprinus carpio) farm technology uses several feed types affecting the growth performance; however, we know less about their long-term effects on water quality. Herein, we evaluated the effects of three commonly used feeds—moderate levels of fish meal and fish oil feed (FF), plant meal and plant oil feed (PF), and cereal feed (CF) on the nutrient (total nitrogen (TN), total phosphorus (TP) and organic matter (OM)) content of the pond water. The experiment was carried out over three consecutive years from juveniles to market-sized fish. The type of feed affected the net yields, but generally, it did not affect the water quality. The year of sampling, however, was a significant factor affecting TN, TP, and OM, whose concentrations decreased during the three years. Our findings highlight that the age of the stocked fish on water quality has a more pronounced effect than the nutrient profile of the supplementary feed. Additionally, the plant-based feed could provide comparable net yields as the fish meal-based feed without additional nutrient loading in the water column, reinforcing the sustainability of alternative feeds in semi-intensive carp farming.

scholarly journals IMPACT OF MERCURY CHLORIDE EXPOSURE ON SOME OF IMMUNOLOGICAL AND BIOCHEMICAL ASSAYS OF COMMON CARP, CYPRINUS CARPIO

2021 ◽  
Vol 52 (3) ◽  
pp. 547-551
Author(s):  
S. A. Mustafa ◽  
A. J. Al-Rudainy
Keyword(s):  
Blood Glucose ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Lymphocyte Transformation ◽  
The Other ◽  
Control Group ◽  
Mercury Chloride ◽  
Common Carp Cyprinus Carpio ◽  
Biochemical Assays ◽  
Carp Cyprinus Carpio

This work was designed to evaluate the influence of mercury chloride on some of biochemical and immunological biomarkers in common cap, Cyprinus carpio. Around of 120 fish were randomly allocated into four groups (30 fish per group) in triplicates as follows; first group act as control group provided with water only without adding HgCl2;  G1, G2 and G3 were exposed to waterborne  HgCl2 at levels of  0.01, 0.05 and 0.1 mg l-1 respectively. After one month exposure to HgCl2, there were significantly decreased (P<0.05) in lymphocyte transformation index and in phagocytic and lysozyme activities. Besides, biochemically, Albumin and globulin content exhibited significantly declined (P<0.05) particularly at higher dose of HgCl2. In contrast, blood glucose value and urea showed significantly increased (P<0.05) especially in G3. On the other hand, variable changes were observed in total count of leucocytes included lymphopenia and neutrophilia in G1 and G2 compared to control.  In conclusion, this investigation indicated that mercury chloride has immune suppressive effects and is extremely toxic to common carp.

Survival of F2 Transgenic Common Carp (Cyprinus carpio) Containing pRSVrtGH1 Complementary DNA When Subjected to Low Dissolved Oxygen

2002 ◽  
Vol 4 (3) ◽  
pp. 323-327 ◽  
Author(s):  
Rex A. Dunham ◽  
Nagaraj Chatakondi ◽  
Amy Nichols ◽  
Thomas T. Chen ◽  
D.A. Powers ◽  
...  
Keyword(s):  
Dissolved Oxygen ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Complementary Dna ◽  
Low Dissolved Oxygen ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio

scholarly journals Histopathological indicators: a useful fish health monitoring tool in common carp (Cyprinus carpio Linnaeus, 1758) culture

2013 ◽  
Vol 8 (10) ◽  
pp. 975-985 ◽  
Author(s):  
Božidar Rašković ◽  
Ivan Jarić ◽  
Vesna Koko ◽  
Milan Spasić ◽  
Zorka Dulić ◽  
...  
Keyword(s):  
Water Quality ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Stream Water ◽  
Histopathological Changes ◽  
Water Supplies ◽  
Common Carp Cyprinus Carpio ◽  
Sensitive Organ ◽  
Carp Cyprinus Carpio ◽  
Tube Well

AbstractIn order to evaluate the relationship between water quality in ponds and indices of histopathological changes occurring in the vital organs of the common carp (Cyprinus carpio L., 1758), two six-month field experiments were carried out using two different water supplies: from the nearby stream and a tube well. The fish were fed supplemental feed: raw cereals, pelleted and extruded compound feed. Histopathological analysis, alteration frequencies, and semi-quantitative scoring of the changes were used to assess the health status of the fish. Ponds supplied by stream water were characterized by higher water hardness, dissolved oxygen and pH values, while those supplied by the tube well had higher electroconductivity, total ammonium and orthophosphates content. Fish survival rate and habitat suitability index were lower in ponds supplied by stream water, while the weight gain did not differ between the two water supplies. The use of stream water resulted in a higher level of histopathological changes in gills and liver. Among the water quality parameters, pH level had the strongest influence on fish. Differences in water supply produced greater influence on the level of histopathological changes than the type of feed applied. Gills were the most sensitive organ, while the kidney was the least responsive.

Effects of different carbon to nitrogen ratios in the biofloc system on water quality, growth, and body composition of common carp (Cyprinus carpio L.) fingerlings

2020 ◽  
Vol 28 (5) ◽  
pp. 1883-1898 ◽  
Author(s):  
Khalil Minabi ◽  
Iman Sourinejad ◽  
Morteza Alizadeh ◽  
Ebrahim Rajabzadeh Ghatrami ◽  
Mohammad Hossein Khanjani
Keyword(s):  
Water Quality ◽  
Body Composition ◽  
Common Carp ◽  
Cyprinus Carpio ◽  
Common Carp Cyprinus Carpio ◽  
Carp Cyprinus Carpio
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