scholarly journals Optimization of stocking rates of tiger shrimp under modified improved culture system

1970 ◽  
Vol 6 (2) ◽  
pp. 341-348 ◽  
Author(s):  
ML Islam ◽  
MJ Alam
Keyword(s):  
Water Quality ◽  
Bacterial Load ◽  
Penaeus Monodon ◽  
Stocking Density ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Shrimp Culture ◽  
Tiger Shrimp ◽  
Significant Difference ◽  
Initial Deposition

With the target of increasing the shrimp (Penaeus monodon) production through farm development and improved grow out management, an experiment was conducted with three different stocking densities viz. 5/m2 (T1), 7/m2 (T2) and 9/m2 (T3). Results of the experiment revealed that, among the water quality parameters, values of dissolved oxygen and transparency were lower in the higher stocking densities with significant difference (p<0.05) among the treatments. Other water quality parameters were similar in all the treatments. Bacterial load in bottom sediment had the trend to increase with increasing culture period and showed significant difference (p<0.05) among the treatments with the highest in the higher stocking density. Soil pH in the end sample reduced a little bit in all the treatments than the initial. Deposition of organic matter, phosphorus and nitrogen was related to the respective stocking densities. Final weight gain and survival rate of shrimp were significantly (p<0.05) higher in T1 than in T2 and T3. Stocking density of 5/m2 showed the highest production of 759.14±19.002 kg/ha, which was significantly (P<0.05) higher than that of 670.77±16.078 kg/ha obtained in T2, but similar to 701.24±33.507 kg/ha obtained in T3. The net economic return and BCR was also significantly higher (p<0.05) in the same stocking density (5/m2) compared to others. Whereas, FCR value was significantly lower (p<0.05) in T1 than the other two treatments. However, pond ecological conditions were more congenial for shrimp culture in lower stocking density (5/m2), which minimized the risk of disease outbreak in the respective stocking density, keeping the culture environment favorable. Key words: Stocking density; Tiger shrimp; Modified improved culture DOI: 10.3329/jbau.v6i2.4832 J. Bangladesh Agril. Univ. 6(2): 341-348, 2008

scholarly journals Water Quality and Sediment Profile in Shrimp Culture with Different Sediment Redox Potential and Stocking Densities Under Laboratory Condition

2016 ◽  
Vol 21 (2) ◽  
pp. 65 ◽  
Author(s):  
Wiyoto Wiyoto ◽  
Sukenda Sukenda ◽  
Enang Harris ◽  
Kukuh Nirmala ◽  
Daniel Djokosetiyanto
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Redox Potential ◽  
Sediment Quality ◽  
Stocking Density ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Shrimp Culture ◽  
Two Factors ◽  
Shrimp Density

Sediment quality has been considered as one of the prime factors influencing the environment quality that support maximum shrimp production.The aim of the study was toevaluate the effects of sediment redox potential and shrimp stocking density on the profile of some sediment and water quality parameters. Two factors randomized factorial design was applied, with stocking density (60 and 120 shrimps.m-2) as the first variable and sediment redox potential (-65 mV, -108 mV and -206 mV) as the second variable. Some significant changes in TP, total Mn, and total S concentrations in the sediment were observed after the experimentation (P<0.05). Sediment redox potential significantly affected the dissolved oxygen, TAN, NO2, NO3, and H2S concentrations in the water. Whereas shrimp stocking density affected all water quality parameters except H2S concentration. Significant interactions between redox potential and stocking densities were observed in the nitrite and alkalinity concentrations. The significant effects of both shrimp density and redox potential on the sediment and water parameters in particular those that are known to directly affect the shrimp welfare (e.g. oxygen, ammonia, nitrite and H2S) indicate that these variables are of important aspects in shrimp pond management. Furthermore, the results clearly showed that -206mV redox potential significantly reduced the dissolved oxygen concentration in the sediment-water interface and increased the generation of H2S in water column. Thereby, this redox potential level is not advisable for shrimp culture system. Keywords: redox potential, stocking density.

scholarly journals FREKUENSI VAKSINASI UNTUK PENCEGAHAN PENYAKIT PADA BUDI DAYA UDANG WINDU ( Penaeus monodon Fabr.) DI TAMBAK

2016 ◽  
Vol 2 (1) ◽  
pp. 93
Author(s):  
Arifuddin Tompo ◽  
Endang Susianingsih ◽  
Mun Imah Madeali
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Prevention And Control ◽  
Penaeus Monodon ◽  
Quality Parameters ◽  
Shrimp Culture ◽  
Tiger Shrimp ◽  
Value Range ◽  
And Control ◽  
Effective Result

Pencegahan dan penanggulangan penyakit pada budi daya udang windu dewasa ini dilakukan dengan cara merangsang kekebalan spesifik udang dengan menggunakan immunostimulan, namun optimalisasi penggunaannya masih perlu dilakukan. Oleh karena itu, penelitian ini dimaksudkan untuk mengoptimalisasikan penggunaan immunostimulan untuk dapat memberikan hasil yang efektif terhadap pencegahan penyakit pada budi daya udang windu. Immunostimulan yang digunakan dalam penelitian ini adalah hasil ekstraksi dari bakteri, Vibrio harveyii yang dilemahkan dengan formalin 1%. Rancangan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan empat perlakuan: A= vaksinasi empat kali sebulan, B= vaksinasi dua kali sebulan, C= vaksinasi sekali sebulan, dan D= tanpa vaksin (kontrol) yang diulang sebanyak tiga kali. Aplikasi dolomit diberikan dua kali per minggu untuk semua perlakuan dengan dosis 5—10 mg/L untuk tiap kali penggunaan. Padat penebaran sebanyak 60.000 ekor/ha dengan pola tradisional plus. Hasil pengamatan memperlihatkan bahwa perlakuan B (vaksinasi dua kali sebulan) memberikan sintasan yang tertinggi yaitu 91,5% dengan produksi tertinggi yaitu 84,0 kg. Pengamatan terhadap populasi bakteri Vibrio sp. pada lingkungan berada pada kisaran 102—103 cfu/mL yang masih layak bagi lingkungan dan budi daya udang sedangkan untuk kualitas air pada beberapa parameter juga berada pada kisaran yang layak untuk budi daya udang.In recent years the prevention and control of diseases on tiger shrimp culture has been stimulated by specific immunostimulan such as vaccine. How ever the optimalization used of immunostimulan have to be conducted. Based on that information, the study aims to optimalized the using of immunostimulan to give the effective result on diseases prevention on tiger shrimp culture. The immunostimulan used in this research was extracted from vibrio by formalin killed 1% with four treatments i.e. A= four times of vaccination a month, B= two times of vaccination a monts, C= once of vaccination a month and, D= control (non vaccination). Dolomite application was given two times a week for all treatments with the dosage 5—10 mg/ L. The results shows that the treatment B (two times of vaccination a month) exhibit the survival rate i.e. 91.5% it is higher than A, C, and D treatments with highest production 84.0 kg. Observation on the population of Vibrio sp. value range 102—103 cfu/mL that’s normally condition both on environmental and shrimp culture, and water quality parameters was still in normal condition.

scholarly journals PERFORMA BUDIDAYA UDANG VANAME (Litopenaeus vannamei) SEMI INTENSIF DI DESA PURWOREJO KECAMATAN PASIR SAKTI KABUPATEN LAMPUNG TIMUR

2018 ◽  
Vol 6 (2) ◽  
pp. 691
Author(s):  
Luqman Hakim ◽  
Supono Supono ◽  
Yudha Trinoegraha Adiputra ◽  
Sri Waluyo
Keyword(s):  
Water Quality ◽  
Litopenaeus Vannamei ◽  
Penaeus Monodon ◽  
Quality Parameters ◽  
Pacific White Shrimp ◽  
Water Quality Parameters ◽  
White Shrimp ◽  
Shrimp Culture ◽  
Study Results ◽  
Farmer Groups

Pacific white shrimp (Litopenaeus vannamei) is new species were culture to replace tiger shrimp (Penaeus monodon) in Purworejo village, Pasir Sakti sub-district of East Lampung residence. This study was purposed to investigate culture performances of Pacific white shrimp in semi intensive system in two farmer groups. Eight ponds with ± 2100 m2/ ponds and density of 60 ind/m2 was used for this study. Results showed that Pacific white shrimp performances was different among two farmer groups. Sido Makmur group showed better performance compared to Lestari Gemilang with showed of ponds productivity 1337,8 kg and 1330,3 kg, respectively. FCR and SR among two groups also showed different, there were 1,88 to 2,39 and 86,95% to 63,3%, respectively. High mortality after WSSV infection was decreased pond productivity. Water quality parameters such as ammonia (0,029-0,031 ppm) and light density (<40 cm) were not suitable for shrimp culture impacted to pond productivity. WSSV infection and water quality parameters had corellation to pond performances.

Polyculture of the sea cucumber (Holothura scabra) with tiger shrimp for water quality improvement.

2020 ◽  
Author(s):  
Ngoc Thai
Keyword(s):  
Water Quality ◽  
Growth Rate ◽  
Organic Compounds ◽  
Penaeus Monodon ◽  
Stocking Density ◽  
Pond Water ◽  
Shrimp Culture ◽  
Tiger Shrimp ◽  
One Way Anova

Abstract This case study describes research on the polyculture of the sandfish (Holothuria scabra) and tiger shrimp (Penaeus monodon) to improve pond water quality. At the first location in Khanh Hoa province, three 1,200-m2 ponds were stocked with shrimp postlarvae (PLs) at a density of 30 PLs m-2. Two ponds (S4 and S3) were stocked with sandfish, at 50 and 100 g m-2, while no sandfish was stocked in the control pond (S2). At the second location also in Khanh Hoa province, three 450-m2 ponds were constructed and stocked with shrimp PLs at a density of 30 PLs m-2. Two of these ponds (S5 and S6) were stocked with sandfish at 50 and 100 g m-2, while no sandfish was again stocked in the control pond (S7). A higher stocking density of sandfish generated a higher growth rate of shrimp (one -way ANOVA, p=0.15, n= 50). The growth rate of shrimp increased with sandfish stocking density, from 0.036 to 0.057 to 0.067 g per day at sandfish stocking densities of 0, 50 and 100 g m-2, respectively. Increasing sandfish stocking density also reduced the hydrogen sulphide (H2S) concentration (one-way ANOVA, p<0.05, n=89). Likewise, concentrations of nitrite (NO2-N), and total organic compounds were higher in systems not stocked with sandfish (one-way ANOVA, p<0.05, n=50). Fungal and bacterial densities decreased with increasing sandfish stocking density. This study thus showed that sandfish could remove certain quantities of toxic gases, organic compounds and microorganisms from shrimp culture systems.

scholarly journals Comparative study on African catfish (Burchell, 1822) hypophysation using ovaprim and chicken pituitary gland extract

2021 ◽  
Vol 3 (1) ◽  
pp. 1-6
Author(s):  
O. A. Babalola ◽  
◽  
F. A. Fakunmoju ◽  
T. F. Sunnuvu ◽  
B. E. Faleti ◽  
...  
Keyword(s):  
Water Quality ◽  
Comparative Study ◽  
Pituitary Gland ◽  
Clarias Gariepinus ◽  
Latency Period ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
African Catfish ◽  
Gland Extract ◽  
Significant Difference

Comparative study on African catfish hypophysation indices using ovaprim and chicken pituitary gland extract (CPGE) was carried out. Sixteen (16) African catfish brood stocks between 1100 and 2300 g in ratio 2:1 and four (4) numbers of layer birds (Gallus gallus domesticus) between 1200 and 2200 g in ratio 1:3 were used respectively. The experiment was batched into “A” and “B”. Batch ‘A’ was placed on ovaprim while batch ‘B’ was placed on CPGE. An indoor hatchery vat, measuring 0.6096 m x 1.8288 m x 0.3048 m each was used for the incubation. Digital measuring kits were used to monitor water quality parameters and measurement of the brood stocks weights independently. Brood stocks on ovaprim and CPGE treatments had the following mean hypophysation indices in these order: fecundity (11100±7690 and 17760±13863), latency period (9.53±0.54 and 9.77±0.49), fertilization percentage (94.03±5.90% and 90.6±10.11%), hatchability percentage (75.6±0.81% and79.35±10.27%), number of eggs produced (5889±657.37 and 9403.33±589.80), total number of larvae hatched (4717.33±1111.0 and 7111.33±506.64), SGR (0.67±0.31 and 1.1±0.31), and survival rate (64.81±0.71 and66.24±2.19) respectively. There was no significant difference (p = 0.05) in the mean values of fecundity, latency period, fertilization and hatchability percentages in both treatments but there was significant difference (p ≤ 0.05) in number of eggs produced and total number of larvae hatched in both treatments. The water quality parameters were within the range for induced breeding techniques and there was no significant difference (p= 0.05) in both experiments. Both ovaprim and CPGE had excellent results from the induced breeding of Clarias gariepinus and yielded good results. Therefore, CPGE could be recommended from the view point of excellent results and its availability from chicken slaughter houses as against ovaprim which are imported.

scholarly journals Intensification of “mola” (Amblypharyngodon mola) culture in homestead ponds

2020 ◽  
Vol 9 (2) ◽  
pp. 23-29
Author(s):  
SN Mona ◽  
S Sultana ◽  
KK Ahmed ◽  
N Khan ◽  
KA Huq ◽  
...  
Keyword(s):  
Water Quality ◽  
Fish Species ◽  
Stocking Density ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Culture Period ◽  
Total Biomass ◽  
Supplementary Feed ◽  
By Products ◽  
Indigenous Fish Species

The research was carried out with small indigenous fish species (SIS) named mola (Amblypharyngadan mola) in monoculture system to intensify production in farmers’ homestead ponds with 50% household women involvement during June to December, 2016. Brood mola was stocked at the rate of 2, 4 and 6 m-2 with three replications in each treatment. Supplementary feed (27.1% protein) consisted of commonly available agricultural by-products was provided daily at the rate of 2% of the total biomass along with natural feed as mola is planktivorous species. Seven different water quality parameters were measured fortnightly and found within cultivable range. Gross production of mola were obtained 520.59±23.4, 599.06±258.87, 1063.94±42.87 kg ha-1 from T1, T2 and T3, respectively after 4 months’ culture period. The yield of T3 was significantly greater (P < 0.05) than T1 and T2. The highest gross production was obtained in T3 where stocking density was 6 brood mola m-2. Int. J. Agril. Res. Innov. Tech. 9(2): 23-29, December 2019

scholarly journals Effect of Stocking Density on Growth Performance and the Survival of Golden Mahseer, Tor putitora (Hamilton) Fry

2021 ◽  
pp. 47-54
Author(s):  
Md. Golam Sajed Riar ◽  
Nur- A Raushon ◽  
Sumit Kumer Paul
Keyword(s):  
Water Quality ◽  
Growth Performance ◽  
Crude Protein ◽  
Stocking Density ◽  
Experimental Period ◽  
Quality Parameters ◽  
The Other ◽  
Water Quality Parameters ◽  
Daily Weight Gain ◽  
Tor Putitora

Growth performance and survival of Tor putitora fry under different stocking densities were evaluated fry rearing system. The experimental period was 10 weeks from 31 December to 10 March 2019. The experiment was carried out in nine earthen ponds of 0.04 ha each under three treatments with three replications.  Thirty days old fry were stocked at the rate of 1.0X105/ha was designated as treatment- 1 (T1), 1.5X105/ha` as treatment- 2 (T2) and 2.0X105/ha as treatment- 3 (T3), respectively. Fry were fed with commercially available nursery feed containing 32% crude protein. It was observed that, lower stocking density showed highest daily weight gain in T1 (growth 0.066 ± 0.006 g/day) compared with higher stocking density in T2 (growth 0.044 ± 0.004 g/day) and T3 (growth 0.024 ± 0.003 g/day), respectively. It is also noticed that, the lower stocking showed the highest survival rate (79.66 ± 4.34 %) than the other two treatments (66.97±3.67 and 54.67± 3.12 %). The values of different water quality parameters were within the optimum ranges for the rearing of carp fry. Water quality parameters did not show significant variations in the experimental ponds under different stocking densities. Among these three stocking densities lower stocking density (T1) showed the best result compare with the other two higher stocking densities.

scholarly journals Effects of stocking density on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) cultured in earthen pond

2020 ◽  
Vol 19 (05) ◽  
pp. 65-70
Author(s):  
Nhan T. Dinh
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Growth Performance ◽  
Economic Efficiency ◽  
Quality Parameters ◽  
Fish Growth ◽  
Water Quality Parameters ◽  
Lates Calcarifer ◽  
Asian Seabass ◽  
Significant Difference

This trial aimed to evaluate effects of stocking densities of 1-5 fish/m2 on growth performance, survival rate and economic efficiency of Asian seabass (Lates calcarifer) in earthen ponds. Fish with an initial length of 90.7 ± 0.1 mm and weight of 20.8 ± 0.1 g/fish and ponds with 600 m2 each and 1.5 m depth were used for this study. Experiment was designed with three treatments, including different stocking densities of 1, 3 and 5 fish/m2. The fish was fed with pellete feed containing 43 - 44% crude protein. Water quality parameters including temperature, dissolved oxygen, pH, salinity, transparency and ammonia concentration were measured once a week. Fish were sampled every 30-day intervals for length and weight measurement then for their growth estimation. Costs were recorded for economic efficiency estimation. Results showed that the water quality parameters were in suitable ranges for growth and development of Asian seabass. The final average length and weight of density 1 fish/m2 was significantly higher than those at 3 and 5 fish/m2 (P < 0.05). However, there was no significant difference on the fish growth in terms of daily length and weight gain, as well as survival rate and feed conversion ratio between different stocking densities. Asian seabass culture at 3 and 5 fish/m2 resulted in a higher profit compared to at 1 fish/m2. The highest economic efficiency in terms of area pond was showed at 5 fish/m2 treatment.

scholarly journals Stress response in transport of juvenile cobia Rachycentron canadum using the anesthetic benzocaine

2017 ◽  
Vol 44 (3) ◽  
pp. 638-642
Author(s):  
Janaína S. Pedron ◽  
Denise S. Miron ◽  
Ricardo V. Rodrigues ◽  
Marcelo H. Okamoto ◽  
Marcelo B. Tesser ◽  
...  
Keyword(s):  
Water Quality ◽  
Blood Glucose ◽  
Stress Response ◽  
Stocking Density ◽  
Ammonia Nitrogen ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Blood Samples ◽  
Total Ammonia Nitrogen ◽  
Total Ammonia

This experiment evaluated the efficacy of benzocaine to reduce stress response during transport of juvenile cobia. Fish (30 g) were packed in bags and transported for 8 h (stocking density = 10 g L-1). Three concentrations of benzocaine were evaluated: 0, 2, and 6 mg L-1. Blood samples were taken for glucose and hematocrit before transportation, and then at 0, 2, 24, and 48 h after. Water quality parameters were verified. No mortality was observed. Total ammonia nitrogen was higher (2.46 mg L-1) and pH was lower (6.92) at 2 mg benzocaine L-1. There was an increase in blood glucose for all treatments on arrival, and it was higher for those exposed to benzocaine at 6 mg L-1, although at 48 h they were all similar. The hematocrit did not differ among treatments. The results suggest: 1) the density 10 g L-1 is considered safe for juvenile cobia transport; 2) benzocaine did not mitigate stress response on cobia during transport, therefore its use is not recommended for this purpose.

scholarly journals Dynamic model of dissolved oxygen in intensive concrete pond of white leg shrimp (Litopenaeus vannamei) in Bomo Village, East Java

2021 ◽  
Vol 919 (1) ◽  
pp. 012058
Author(s):  
Supriatna ◽  
M Mahmudi
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Regression Model ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Total Alkalinity ◽  
Oxygen Solubility ◽  
Shrimp Culture ◽  
Shrimp Ponds ◽  
Total Bacteria

Abstract This study is to understand a simple model of dissolved oxygen (DO) and other water quality factors that affect it in two seasons in intensive white leg shrimp ponds. Water quality parameters in the dry and rainy seasons in several ponds were sampled daily, including temperature, pH, (DO), salinity, twice a week, including ammonium, nitrite, nitrate, orthophosphate, total alkalinity, and total bacteria. Besides daily, dissolved oxygen is also measured before the harvest every two hours by using dark bottles and light bottles. Pond water quality parameters are still suitable for white shrimp culture. Daily DO shrimp ponds form a polynomial regression model. DO in light bottles constructed a quadratic regression model, DO in dark bottles created a linear regression pattern, with a DO reduction rate of 0.6338 mg−l per hour. During one of the shrimp cultures, the DO model showed an inverse quadratic equation with the lowest oxygen solubility level on day 57. DO was positively correlated with changes in salinity and transparency and negatively related to ammonium, nitrate, phosphate, total alkalinity, and total bacteria count.

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