scholarly journals ZEOLIT MEMPERTAHANKAN KUALITAS AIR DAN MENINGKATKAN PERTUMBUHAN LELE DUMBO (Clariasgariepinus)

2003 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Bambang Triyatmo
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Water Exchange ◽  
Stocking Density ◽  
The Body ◽  
Treated Water ◽  
Untreated Water

The objectives of this research were to know the effects of zeolite on the water quality and the growth of catfish. Catfishes were cultured in fiberglass containers (±24 l) with 5-10% of water exchange/container/day, for 3 months. The stocking density was 8 fishes/container (3 fishes/l water). Zeolite was added at 0, 125, 250, 500 mg/l/month.Result of this experiment indicated that zeolite at 125, 250, 500, mg/l/month decreased free CO2, alkalinity and NH3 of water during 3 months culture of catfish. The body weight increasment of catfish cultured in treated water with zeolit at 125, 250, 500 mg/l/month were 188, 195, and 222 g, respectively, which were higher than that of catfish cultured in untreated water.

scholarly journals Sodium Hypochlorite Treatment: The Impact on Bacteria and Endotoxin Concentrations in Drinking Water Pipes of A Pig Nursery

Agriculture ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 86
Author(s):  
Regina Böger ◽  
Karl Rohn ◽  
Nicole Kemper ◽  
Jochen Schulz
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Sodium Hypochlorite ◽  
Coliform Bacteria ◽  
Treated Water ◽  
Water Pipes ◽  
Pseudomonas Spp ◽  
Untreated Water ◽  
The Impact ◽  
Total Bacteria

Poor drinking water quality can affect pigs’ health and performance. The disinfection of water may enhance microbial water quality. In this study, bacteria and endotoxins in sodium hypochlorite-treated and -untreated water from one pig nursery were analyzed. Water samples were taken from incoming water and from compartments with treated and untreated water at the beginning and end of pipes and from nipples. The farm was visited 14 times to measure total bacteria counts and concentrations of Pseudomonas spp. and endotoxins. Additionally, the occurrence of coliform bacteria was analyzed. A mixed model analysis revealed significant reductions in total bacteria counts and Pseudomonas spp. in treated water at the beginning of pipes and at nipple drinkers. The differences between bacteria concentrations at the end of pipes had no clear trend. Endotoxin concentrations were approximately equal at the beginning of pipes and at nipple drinkers but were found to have differences at the end of pipes. The occurrence of coliform bacteria was significantly reduced in treated water. The application of sodium hypochlorite can significantly reduce bacteria in water pipes. Endotoxin concentrations were mostly unaffected by water treatment. Disinfection of the dead-end pipe sections failed, and thus these parts should be regarded as potential contamination sources.

Effect of stocking density on soil, water quality and nitrogen budget inPenaeus monodon(Fabricius, 1798) culture under zero water exchange system

2012 ◽  
Vol 44 (10) ◽  
pp. 1578-1588 ◽  
Author(s):  
Ramamoorthy Saraswathy ◽  
Moturi Muralidhar ◽  
Muniyandi Kailasam ◽  
Pitchaiyappan Ravichandran ◽  
Baijnatha Prasad Gupta ◽  
...  
Keyword(s):  
Water Quality ◽  
Soil Water ◽  
Water Exchange ◽  
Stocking Density ◽  
Nitrogen Budget ◽  
Exchange System

scholarly journals Water quality, growth and production performance of stinging catfish, Heteropneustes fossilis (Bloch) in cemented tanks with two different stocking densities

2019 ◽  
Vol 47 (1) ◽  
pp. 107-119
Author(s):  
Dulon Roy ◽  
Abdullah Al Masud ◽  
Pritam Kumar Saha ◽  
MM Kutubuddin ◽  
Md Muzahidul Islam
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Survival Rate ◽  
Stocking Density ◽  
Culture Technique ◽  
Production Performance ◽  
Heteropneustes Fossilis ◽  
Tank Culture ◽  
Significant Difference ◽  
T1 And T2

Attempt has been taken to develop intensive tank culture technique providing natural environment for Stinging catfish (Heteropneustes fossilis) inside tank to increase survival rate as well as production. The experiment was conducted for a period of 150 days in two tanks (T1 and T2) of 300 m2. Fish fries with a mean weight and length ranged from 1.02 to 2.2 g and 2.7 to 3.5 cm were stocked in T1 and T2, respectively. Stocking density of fingerlings were 1, 25,000 and 1, 50,000 per Ha in T1 and T2, respectively. Commercial pelleted feed was supplied to tank reared fish twice daily at a rate of 3-10% of body weight per day and later feeding rate was adjusted based on body weight by sampling. Important water quality parameters (temperature, DO, pH, transparency, ammonia and nitrate) were recorded weekly throughout the culture period. Survival rate was 87% and 84% in T1 and T2, respectively. Mean final weight were 41.73 ± 2.09g and 40.6 ± 0.90 g in T1 and T2, respectively. Length-weight relationship indicates that the growth rate was always higher in T1 followed by T2. Results showed that net yield was relatively higher in T2 (5115.35 ± 113.13 Kg/ha) than T1 (4537.12 ± 227.4 Kg/ha). In case of production, there was significant difference (p < 0.05) between two treatments. This experiment demonstrated the potential of H. fossilis production through new technique of tank culture system. However, more research is needed using local feed ingredients with higher stocking density. Bangladesh J. Zool. 47(1): 107-119, 2019

scholarly journals APPLICATION OF BIOFLOC TECHNOLOGY IN INTENSIVE FARMING AFFECTED PRODUCTION AND BLOOD PERFORMANCES OF THE CATFISH [Clarias gariepinus (Burchell, 1822)]

2016 ◽  
Vol 78 (4-2) ◽  
Author(s):  
Sri Hastuti ◽  
Subandiyono Subandiyono
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Water Exchange ◽  
Heterotrophic Bacteria ◽  
Clarias Gariepinus ◽  
Stocking Density ◽  
Relative Growth ◽  
Intensive Farming ◽  
Biofloc Technology ◽  
Control Water

The biofloc technology can control water quality under negligible water exchange. The aim of this study was to evaluate the  effects of stocking density on production and blood performance of catfish (Clarias gariepinus [Burchell, 1822]). The catfish were reared in biofloc system (heterotrophic bacteria and addition of sugar for a period of 10 wk and used three levels of density i.e. (500, 1 000, and 1 500) fish per m2. The production increased with the increasing of stocking density, relative growth rate decreased with the increasing of that. The stocking density of 1 500 fish per m2 on the biofloc technology can support maximum catfish production, health and proper water quality.

scholarly journals Influence of stocking density on water quality and growth performance of white leg shrimp (Litopenaeus vannamei) reared in fiberglass tanks, without water exchange

2019 ◽  
Vol 18 (06) ◽  
pp. 14-22
Author(s):  
Tu P. C. Nguyen
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Growth Performance ◽  
Linear Relationship ◽  
Litopenaeus Vannamei ◽  
Water Exchange ◽  
Stocking Density ◽  
Quality Parameters ◽  
Final Weight ◽  
Ad Libitum

The present study evaluated the effects of stocking density on water quality parameters, growth performance and survival rate of white leg shrimp Litopenaeus vannamei, reared in fiberglass tanks, without water exchange. Three stocking densities (50, 100 and 200 shrimp/m2) were tested. Each treatment consisted of three replicates fiberglass tanks (500 L). The shrimp were fed ad libitum four times per day with a commercial pellet (40-42% protein). After an 8-week trial, concentrations of nutrients in the culture tanks showed an increasing linear relationship with increasing stocking density. The growth performance of shrimp in low stocking densities was significantly greater than that in high stocking densities. The results from this study demonstrate that with increasing the stocking density the production of shrimp increased but in a low final weight and survival compared to low stocking density.

scholarly journals PRODUCTION PERFORMANCE AND BLOOD PROFILE OF CLIMBING PERCH Anabas testudineus Bloch CULTURED IN PEAT POND WITH DIFFERENT STOCKING DENSITIES

2019 ◽  
Vol 14 (2) ◽  
pp. 83
Author(s):  
Ani Widiyati ◽  
Adang Saputra ◽  
Eri Setiadi
Keyword(s):  
Water Quality ◽  
Stocking Density ◽  
Mesh Size ◽  
The Body ◽  
Production Performance ◽  
Fish Ponds ◽  
Anabas Testudineus ◽  
Blood Profile ◽  
Climbing Perch ◽  
Freshwater Aquaculture

Climbing perch is one of economically-valued local fish in Indonesia, particularly in Borneo, Sumatra, and Java Islands. The fish has the potential to be developed as freshwater aquaculture species. The purpose of this experiment was to evaluate the production performance and blood profile of climbing perch cultured in peat pond with different stocking densities. The research was conducted in Kereng Bangkiray Village, Sebangau District, Palangkaraya City, Central of Borneo. Nine fish ponds sized 5.0 m x 5.0 m x 1.5 m were used. Nets with a mesh size of 1 cm measuring 2.0 m x 1.5 m x 1.0 m was installed in each fish pond for the experiment. The treatment consisted of different stocking densities, namely 15 fish/m2, 30 fish/m2, and 45 fish/m2. Fish with the body weight of 20 ± 1.25 g were used. Fish were cultured for four months. An artificial diet containing 30% protein was given with a feeding rate of 5%. The experiment was designed in a complete randomized design. The result showed that the production performances (i.e. survival, specific growth rate, absolute weight, and biomass) were significantly higher at the densities of 15 and 30 fish/m2 than that of 45 fish/m2 (P<0.05). Blood profile such as glucose, erythrocyte, leucocyte, and hemoglobin were higher at the density of 45 fish/m2 except for hematocrit which was higher at the densities of 30 and 15 fish/m2. Water quality parameters such as dissolved oxygen, nitrite, nitrate, and ammonia at the densities of 15 and 30 fish/m2 showed better values than that of 45 fish/m2 stocking density. To optimize the productivity and maintain the optimum water quality condition, the optimal stocking density for climbing perch culture is suggested at 30 fish/m2.

scholarly journals Growth Performance and Survival Rate of Catfish (Pangasius sp) with the Application of the Nitrifying and Denitrifying Bacteria

2021 ◽  
Vol 934 (1) ◽  
pp. 012004
Author(s):  
Y Yosmaniar ◽  
T Sumiati ◽  
M Mulyasari
Keyword(s):  
Water Quality ◽  
Body Weight ◽  
Survival Rate ◽  
Bacterial Isolate ◽  
Stocking Density ◽  
Optimal Growth ◽  
Denitrifying Bacteria ◽  
Growth And Survival ◽  
Randomized Design ◽  
Completely Randomized Design

Abstract Nitrifying and denitrifying bacteria can be used as a bioremediation agents in aquaculture. The purpose of this experiment is to evaluate the optimal growth and survival performances of catfish rearing with the application of nitrifying and denitrifying bacteria. A completely randomized design was performed with the following treatments: A) nitrifying and denitrifying bacteria NP2-DP1; B) nitrifying and denitrifying bacteria NP2-DP2; C) commercial bacteria and D) without bacterial isolate (control), each with 3 replications. Twelve containers (34 x 34 x 45 cm) were used with a volume of 20 L equipped with aeration. The catfish used (Pangasius sp) has a body weight of 8.33 g ± 0.1 and stocking density of 20 fish / container reared within 30 days. Feed was applied to the fish at 3% of their body weight for three times a day at 08.00 am, 12.00 and 15.00 pm . . Inoculation of bacteria on day 10th and; 20th, that is 108 cfu / mL. The parameters measured were growth rate, survival rate, and water quality. Sampling was carried out every 10 days. The results showed that the application of NP2 and DP1 was the optimal to increase the growth and survival of catfish.

scholarly journals Effects of intensity of light and stocking density on broiler body weight and yield of valuable carcass parts

2018 ◽  
Vol 34 (1) ◽  
pp. 83-93
Author(s):  
Zdenka Skrbic ◽  
Milos Lukic ◽  
Veselin Petricevic ◽  
Snezana Bogosavljevic-Boskovic ◽  
Natasa Tolimir ◽  
...  
Keyword(s):  
Body Weight ◽  
Carcass Traits ◽  
Relative Yield ◽  
Stocking Density ◽  
The Body ◽  
Growing Up ◽  
Breast Meat ◽  
Negative Effects ◽  
Final Body Weight ◽  
Individual Measurement

In order to determine the effect of intensity of light and stocking density, as well as the interaction of light intensity x stocking density on body weight and individual carcass traits, an experiment was performed on 1200 broilers of the Ross 308 genotype. The investigated factors were the intensity of light (LI): 20 lx (K) ; 150 lx (O) and stocking density (SD): 10 broilers/m2 (A); 13 broilers/m2 (B); 15 broilers/m2 (C), in 4 repetitions. The light source was incandescent bulbs of adequate intensity and a light program 16L: 4D: 2L: 2D was applied. Broiler body weight was controlled on 11th, 21st, 35th and 42nd day, by individual measurement of all chickens in the trial. The average sample containing 12 chickens per treatment with equal gender representation (total of 72 broilers) was used to study the slaughter quality of carcasses based on the parameters of absolute and relative yield of more valuable carcass parts (breast, thighs and drumsticks) and meat in the more valuable parts of the carcass. The effect of light with different intensity on the body weight differed depending on the broiler rearing phase. The interaction effect of the intensity of light and stocking density on the body weight of broilers was confirmed in all stages of growing up to the age of 42 days. A higher intensity of light (150 lx) showed the potential to alleviate the negative effects of higher stocking density (15 broilers/m2) on the final body weight of the broiler. The carcass traits were not significantly affected by the intensity of the light, while the stocking density, as well as the intensity of the light x stocking density did influence the yield of whole breast and the yield of breast meat.

scholarly journals The The effects of decomposing mangrove leaf litter and its tannins on water quality and the growth and survival of tiger prawn (Penaeus monodon) post-larvae

2019 ◽  
Vol 20 (9) ◽  
Author(s):  
Sri rejeki Sulaiman ◽  
MARCEL MIDDELJANS ◽  
Lestari Lakhsmi Wiidowati ◽  
Restiana Wisnu Ariyati ◽  
TITA ELFITASARI ◽  
...  
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Body Weight ◽  
Leaf Litter ◽  
Brackish Water ◽  
Water Exchange ◽  
Organic Fertilizer ◽  
Penaeus Monodon ◽  
Growth And Survival ◽  
Tiger Prawn

Abstract. Rejeki S, Middeljans M, Widowati LL, Ariyati RW, Elfitasari T, Bosma RH. 2019. The effects of decomposing mangrove leaf litter and its tannins on water quality and the growth and survival of tiger prawn (Penaeus monodon) post-larvae. Biodiversitas 20: 2750-2757. Shrimp farming in Demak, Indonesia is often practiced in silvo-aquaculture systems in which mangrove trees are planted on pond bunds. As such, mangrove leaves and its substrates may have impact on penaeid shrimp production. In this area, mangrove re-growth proceeded with Avicennia marina while planting is mostly done with Rhizophora apiculata. We compared the effects of decomposing fresh leaves of A. marina and R. apiculata on water quality and on the performance of Penaeus monodon postlarvae (PL). A hundred of PL21 (postlarvae aged 21 days with weight of 0.28 g) were stocked in each of 30 aerated tanks containing 800 liters of brackish water (salinity of 21 ppt) for 37 days. Five treatments with three replicates for each mangrove species were assigned by adding into the tanks of 0.125, 0.25, and 0.5 g L-1 of air-dried leave, 0.125 of g L-1 minced leave and 0.125 g L-1 of leachate of minced leaves. The PLs were fed 3 times daily with pellets at 10 % of initial total body weight. Water quality parameters were recorded daily. Tannin, H2S and NH3-N concentrations were measured every ten days. Prawn's body weight (BW) was measured and specific growth rate (SGR, % day-1) and survival rate (SR, %) were calculated after the end of experiment. Results were analyzed with ANOVA and Pearson's correlation. The results showed that tannin in decomposing mangrove leaf litter up to a concentration of 0.5 mg g-1 did not have a significant effect on water quality and on the growth and survival of P. monodon PL. However, increasing leaf litter concentrations showed an increase in NH3-N concentration due to organic matter degradation. The accumulation of NH3-N may have caused the slow growth of shrimp PL in A. marina treatment. Shrimp PL in leaf litter leachates treatment has a higher growth rate than those PL in regular leaf litter in relation to nutritional value. Survival and growth varied from 62 ±14 to 70 ± 8% and 3.1±2.1 to 5.5±1.2% day-1, respectively. Although decomposing mangrove leaves of A. marina and R. apiculata had no toxic effects on P. monodon PL up to a concentration of 1.25 g L-1, but causing severe mortality for shrimp in tanks without water exchange. As a conclusion, the present of mangrove leaves in brackish water ponds with insufficient water exchange can be harmful to shrimps. However, if the water exchange is good, decomposed mangrove leaves can become organic fertilizer that beneficial for the growth of natural food for the shrimps

scholarly journals Impact of stocking density on growth and production performance of monosex tilapia (Oreochromis niloticus) in ponds

2016 ◽  
Vol 2 (3) ◽  
pp. 471-476
Author(s):  
Md Mamunur Rahman ◽  
Debashis Kumar Mondal ◽  
Md Rurul Amin ◽  
Mohammad Golam Muktadir
Keyword(s):  
Body Weight ◽  
Survival Rate ◽  
Growth Parameters ◽  
Stocking Density ◽  
Quality Parameters ◽  
The Body ◽  
Fish Growth ◽  
Production Performance ◽  
Cost Ratio ◽  
Short Period

Stocking density is considered one of the important factors affecting fish growth. The study was aimed to compare the growth parameters of monosex tilapia at various stocking densities. The experiment was carried out during the period from 06 August to 22 December 2014. Three stocking densities were used as 125, 250 and 375 fish/dec and designated as treatment T1, T2 and T3 respectively each having two replicates. All the fishes were of same age group having average initial body weight of 1.34g. A commercial feed was supplied at the rate of 40% of the body weight and then gradually it was readjusted to 20%, 10%, 5% and 3% respectively and continued up to the end of the experiment. The water quality parameters were monitored at 14 days interval and the ranges were: temperature 19.34 to 31.40°C, pH 6.83 to 8.03, dissolved oxygen 4.78 to 6.82 mg/l and transparency 29.02 to 49.45cm.The result of the present study showed that the mean weight gain was significantly (P<0.01) highest in T1(120.58g) followed by T2(89.74g) and T3(74.58g).The average specific growth rates (SGR) was 2.590, 2.560 and 2.598 (%/day) in treatment T1, T2 and T3 respectively. There was significant (P<0.01) differences among the survival rate. The survival rate 87% was significantly highest in T1followed by 76% in T2 and 69% in T3.The fish productions were 13.25, 17.30 and 19.64 kg/decimal in T1, T2 and T3 respectively. Although the highest production was obtained in T3 but individually growth performance of monosex tilapia was highest in T1. The highest net profit was found (BDT 3,373.30) inT1compared toT2 (BDT 3,017) and T3 (BDT 2,918). The highest benefit cost ratio (BCR) was 1.79 in T1followed by 1.44 in T2and 1.28 in T3. Based on the result of present experiment, fish farmers might be suggested to rear tilapia at lower stocking density to get higher growth, survival and benefit in a short period of time.Asian J. Med. Biol. Res. September 2016, 2(3): 471-476

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