Altered sex ratio in giant fresh water prawn, Macrobrachium rosenbergii (de Man) using hormone bioencapsulated live Artemia feed

2004 ◽  
Vol 35 (10) ◽  
pp. 943-947 ◽  
Author(s):  
Dharmendra S Baghel ◽  
Wazir S Lakra ◽  
Guttula P Satyanarayana Rao
Keyword(s):  
Sex Ratio ◽  
Fresh Water ◽  
Macrobrachium Rosenbergii ◽  
De Man

Effects of Microalgae Chlorella vulgaris Density on the Larval Performances of Fresh Water Prawn Macrobrachium rosenbergii (De Man, 1879)

2021 ◽  
Author(s):  
R.T. Mathew ◽  
Y.A. Alkhamis ◽  
S.M. Rahman ◽  
A.S. Alsaqufi
Keyword(s):  
Fresh Water ◽  
Chlorella Vulgaris ◽  
Macrobrachium Rosenbergii ◽  
Dry Weight ◽  
Larval Survival ◽  
Crustacean Species ◽  
Treatment Groups ◽  
Potential Applications ◽  
Larval Production ◽  
De Man

Background: Microalgae have several potential applications in early stages especially in the hatchery phase of several fish, mollusc and crustacean species. The present study aimed to evaluate the effects of microalgae Chlorella vulgaris at different concentrations on larval performances of Macrobrachium rosenbergii. Methods: Freshly hatched larvae were reared until the metamorphosis of first post larval (PL) stage in plastic aquaria (5 liter, 12ppt and 12L:12D) with a density of 10 larvae/liter under five randomly arranged treatment groups in 3 replicates such as, 0×105 (T1, control) and four different concentrations of C. vulgaris 5×105 (T2), 10×105 (T3), 15×105 (T4) and 20×105 (T5) cells/ml. Larvae were fed Artemia (6 nauplii/ml) six times daily. Result: The results revealed that the addition of microalgae in rearing system significantly enhanced (P less than 0.05) the larval survival and developments than without microalgae. The highest larval survival and faster appearance of PL (in days) was observed in T3 group (60.83%, 24.67 days) followed by T4 (56.91%, 28.33 days) T2 (48.39%, 31.33 days) T5 (40.93%, 32.33 days) and T1 (30.65%, 39 days), respectively. Larvae reared at moderate concentrations of microalgae (T3 and T4) resulted in high dry weight that of extreme low (T2) or high (T5) concentrations of microalgae. This study identified the best concentration of Chlorella vulgaris for the rearing of M. rosenbergii larval and could be applicable for the mass larval production of this species commercially.

UJI COBA PERANGKAP UDANG DENGAN BENTUK YANG BERBEDA (EXPERIMENTAL FISHING WITH TRAP PRAWN DIFFERENT FORM)

2016 ◽  
Vol 2 (3) ◽  
pp. 31
Author(s):  
Irhamsyah Irhamsyah
Keyword(s):  
Fresh Water ◽  
Macrobrachium Rosenbergii ◽  
Total Weight ◽  
Total Catch ◽  
The Difference ◽  
De Man

Penelitian ini bertujuan untuk  mengetahui perbedaan hasil tangkapan udang dari tamba dan ayunan modifikasi dan hasil tangkapan selain udang. Dari hasil penelitian diperoleh perlakuan A (tamba) diperoleh hasil tangkapan udang sebanyak 52 ekor, dengan berat total 2.210 gram.  Perlakuan B (ayunan modifikasi lantai bambu), diperoleh hasil tangkapan udang sebanyak 29 ekor, dengan berat total  180 gram.  Total hasil tangkapan udang dengan menggunakan tamba dan ayunan modifikasi lantai bambu selama 16 hari pengamatan adalah 81 ekor dengan berat total 2.390 gram. Jenis hasil tangkapan utama yaitu Udang Galah (Macrobrachium rosenbergii de Man) dengan hasil tangkapan sampingan adalah ikan Lundu (Mystus gulio) dan  ikan Sapu-Sapu (Hypostomus plecostomus).This study aims to (1) know the difference between the catch of prawns from tamba and ayunan, and (2) to determine the catch other than prawn.The results, treatment A (tamba) gained as much as 52 prawns, with a total weight of 2,210 grams. Treatment B (ayunan modifications bamboo flooring), gained as much as 29 prawns, with a total weight of 180 grams. Total catch of prawns using swing modifications and addi bamboo flooring for 16 days of observation was 81 prawns with a total weight of 2,390 grams.Main types of catches fresh water prawn (Macrobrachium rosenbergii de Man) with a side of the catch is Lundu (Mystus Gulio) and Sapu-sapu (Hypostomus plecostomus).

scholarly journals Impact of commercial probiotics application on growth and production of giant fresh water prawn (Macrobrachium Rosenbergii De Man, 1879)

2016 ◽  
Vol 4 ◽  
pp. 112-117 ◽  
Author(s):  
Alokesh Kumar Ghosh ◽  
Joyanta Bir ◽  
Md. Abul Kalam Azad ◽  
Abul Farah Md. Hasanuzzaman ◽  
Md. Sanaul Islam ◽  
...  
Keyword(s):  
Fresh Water ◽  
Macrobrachium Rosenbergii ◽  
Commercial Probiotics ◽  
De Man

Effects of 60Co gamma irradiation on behavior and gill histoarchitecture of giant fresh water prawn Macrobrachium rosenbergii (DE MAN)

2013 ◽  
Vol 92 ◽  
pp. 155-160 ◽  
Author(s):  
A. Stalin ◽  
K.V. Broos ◽  
A. Sadiq Bukhari ◽  
H.E. Syed Mohamed ◽  
R.K. Singhal ◽  
...  
Keyword(s):  
Gamma Irradiation ◽  
Fresh Water ◽  
Macrobrachium Rosenbergii ◽  
60Co Gamma ◽  
De Man

scholarly journals Pathogenic Bacteria, Pesticide Residues and Metal Content in Giant Fresh Water Prawn, Macrobrachium Rosenbergii (De Man) Sold in Local Markets

2011 ◽  
Vol 35 (1) ◽  
pp. 91-97 ◽  
Author(s):  
MJ Nayem ◽  
ANM Fakhruddin ◽  
MAZ Chowdhury ◽  
MK Alam ◽  
Z Ferdous ◽  
...  
Keyword(s):  
Fresh Water ◽  
Pesticide Residues ◽  
Pathogenic Bacteria ◽  
Macrobrachium Rosenbergii ◽  
Expert Committee ◽  
Local Market ◽  
Microbiological Analysis ◽  
Limit Set ◽  
Maximum Residue Limit ◽  
De Man

The giant fresh water prawn, Macrobrachium rosenbergii (de Man), a leading export item of Bangladesh was studied in terms of pathogenic bacteria, pesticide residues and metal contents. In microbiological analysis, total viable bacteria, total coliform, total faecal coliform, total Salmonella and total Vibrio count were ranged from 6.8 × 104 to 1.6 × 106, 1.5 × 102 to 1.8 × 105, 0.0 to 5.0 × 102, 0.0 to 1.8 × 102 and 0.0 to 3.6 × 102 cfu/gm, respectively. Pesticide residue was analyzed by HPLC. Out of six samples studied, one was found to be contaminated with Quinalphos and another with Cypermethrin, where the concentrations were 0.03 and 0.56 ppm, respectively, below the maximum residue limit set by joint FAO/WHO expert committee. Copper (Cu), cadmium (Cd) and lead (Pb) concentrations were measured by atomic absorption spectrophotometer. The range found for Cu and Cd was from 0.01 to 0.11 ppm and 0.01 to 0.06 ppm, respectively, which is below the maximum residue limit set by joint FAO/WHO expert committee (10 ppm for Cu and 0.2 ppm for Cd). Relatively high microbial load and presence of pathogens in all the tested samples, collected from local market revealed that the samples had exposure to an unhealthy environment.DOI: http://dx.doi.org/10.3329/jbas.v35i1.7974Journal of Bangladesh Academy of Sciences, Vol.35, No.1, 91-97, 2011

Sign in / Sign up

Export Citation Format

Share Document