scholarly journals Simple Gas Chromatographic Method for the Quantification of Total Cholesterol in Fish Meats

2010 ◽  
Vol 93 (4) ◽  
pp. 1249-1254
Author(s):  
Nusrat N Memon ◽  
Syed Tufail H Sherazi ◽  
Farah N Talpur ◽  
Muhammad I Bhanger
Keyword(s):  
Significant Variation ◽  
Labeo Rohita ◽  
Standard Addition ◽  
Cholesterol Content ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Indus River ◽  
Folch Method ◽  
Wallago Attu ◽  
Gas Chromatographic Method

Abstract Six fish speciesCirrhinus mrigala (Morakhi), Labeo rohita (Danbhro), Catla catla (Thalli), Wallago attu (Jarko), Ctenopharyngodon idella (Grass), and Cyprimus carpio (Gulfam)commonly found in the Pakistani Indus river, were selected for fat and cholesterol evaluation. Fat content was quantified by the Folch method and cholesterol content was determined by a simple GC method. The application of the proposed method to quantify cholesterol content revealed variations among the six breeds evaluated. The breeds studied contained 0.801.95 fat, indicating that all investigated fishes were lean; significant variation was found in cholesterol content, and ranged between 72 and 392 mg/100 g. Standard addition analyses showed that the method was accurate, as the recovery of cholesterol varied from 95 to 103, with a coefficient of variance not more than 5.6. The results showed that, after the development of suitable calibration, within 11 min, the cholesterol could be accurately determined by GC.

scholarly journals Fry production, induced breeding practices and cost-profit analysis of the hatcheries of Rajshahi district in Bangladesh

2014 ◽  
Vol 2 (3) ◽  
pp. 209
Author(s):  
Naima Aktar ◽  
Abdus Salam Bhuiyan ◽  
M Nazrul Islam
Keyword(s):  
Labeo Rohita ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Hatching Rate ◽  
Hypophthalmichthys Molitrix ◽  
Total Cost ◽  
Profit Analysis ◽  
Net Profit ◽  
Profit Status ◽  
Breeding Practices

This study was conducted on the 13 hatcheries of Rajshahi district from March to December 2013 to know about the fry production status, induced breeding practices and cost-profit status. Average fry production of Labeo rohita, 93.38±83.32 kg, Catla catla, 62.00±60.84 kg, Cirrhinus cirrhosus, 77.46±58.61 kg, L. calbasu, 14.20±14.60 kg, L. bata, 53.73±50.56 kg, L. gonia, 10.00±0 kg, Heteropneustes fossilis, 5.00±0 kg, Clarias batrachus, 20.00±0 kg, Hypophthalmichthys molitrix, 149.77±138.45 kg, Aristichthys nobilis, 104.54±148.11 kg, Ctenopharyngodon idella, 19.20±15.35 kg, Cyprinus carpio 108.08±77.39 kg and Barbonymus gonionotus, 23.10±14.04 kg were recorded in the surveyed hatcheries. Two types of hormone injections PG (pituitary gland) and HCG (Human chorionic gonadotropin) were used for induced breeding. The rate of 1st dose of injection of PG varied from 1 to 2 mg/kg and HCG from 100-150 IU/kg and the rate of 2nd dose of injection of PG varied between 5 and 8 mg/kg. The incubation period and hatching rate in different fish species varied from 10 to 72 hours and 55% to 80%, respectively. The average total cost, gross return and net profit of the hatcheries were 0.667±0.798, 1.152±1.636 and 0.485±0.846 million BDT respectively.

scholarly journals Seasonal Prevalence and Intensity of Infestation by the Ectoparasites in Carps Relating to Physico-Chemical Parameters in Some Ponds of Mymensingh and Bogra Districts of Bangladesh

1970 ◽  
Vol 43 (3) ◽  
pp. 411-418 ◽  
Author(s):  
Abdus Salam Bhuiyan ◽  
ASM Musa
Keyword(s):  
Physicochemical Parameters ◽  
Labeo Rohita ◽  
Silver Carp ◽  
Research Work ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Seasonal Prevalence ◽  
Chemical Parameters ◽  
Physico Chemical ◽  
Grass Carp Ctenopharyngodon Idella

The research work was conducted to find out the seasonal prevalence and intensity of infestation of the ectoparasites of carps in some ponds of Mymensingh and Bogra districts of Bangladesh. Seven species of parasites viz. Trichodina domerguei, Trichodina reticulata, Chilodonella cyprini, Myxobohts koi, Dactylogiroides tripathi, D. extenswi and D. catlarius were found from 640 fry-fingerlings of silver carp, Hypophthalmicthys mohtrix (Valenciennes), grass carp, Ctenopharyngodon idella (Valenciennes), European carp, Cyprinns carpio (Linnaeus), small carp, Puntius gonionotus (Bleeker), katla, Catla catla (Hamilton), rui, Labeo rohita (Hamilton-Buchanan) and mrigal, Cirrhina mrigala (Hamilton- Buchanan) from different nurseries and rearing ponds of Mymensingh and Bogra districts of Bangladesh during June, 2004 to October, 2005. The overall percentage of infestations in two study areas was the highest (95%) in winter, moderate (48%) in summer and the lowest (34.8%) in the rainy season. The physicochemical parameters of water exerted more or less significant combined effect on the occurrence of parasites. Key words: Ectoparasites infestation, Carps, seasonal prevalence, Physicochemical parameters.   DOI = 10.3329/bjsir.v43i3.1158Bangladesh J. Sci. Ind. Res. 43(3), 411-418, 2008

scholarly journals Management and socio-economic conditions of fishermen of the Baluhar Baor, Jhenaidah, Bangladesh

2013 ◽  
Vol 1 (1) ◽  
pp. 30 ◽  
Author(s):  
BM Shahriar Abdullah-Bin-Farid ◽  
Shuvagato Mondal ◽  
Kulsum Akter Satu ◽  
Ripon Kumar Adhikary ◽  
Debasish Saha
Keyword(s):  
Low Income ◽  
Labeo Rohita ◽  
Village Doctor ◽  
Ctenopharyngodon Idella ◽  
Oxbow Lake ◽  
Economic Conditions ◽  
Catla Catla ◽  
Annual Income ◽  
Hypophthalmichthys Molitrix ◽  
Improved Technology

This study was conducted on the management of the Baluhar Baor and fishermen’s socio-economic conditions of the Baor in Jhenaidah district, Bangladesh. Data were collected by interviews, FGDs and CIs with key informants. This Baor was managed under Oxbow Lake Project-1 of Department of Fisheries of Bangladesh government. Hypophthalmichthys molitrix, Labeo rohita, Catla catla, Cirrhina cirrhosus, Cyprinus carpio and Ctenopharyngodon idella were commonly stocked at the composition of 34%, 13%, 12%, 12%, 15% and 14%, respectively. Kochal, Komor and Chack fishing were used for harvesting and yearly production was 750 kg/ha. While studying the socio-economics, 58% fishermen were lived in joint families. 78% fishermen used Kancha sanitary latrine which reflects their poor hygienic condition but they used tubewell for drinking water. 58% fishermen were with 0.045 hectare lands and 74% lived in Kancha house. The annual income varied from BDT 15,000 to 60,000. Education level was found very low and only 18% completed their primary education. Majority fishermen (82%) visited village doctor for health services due to low income and lack of knowledge. All fishermen were fully dependent on Baor fishery for their livelihood. It is possible to uplift their socio-economic by managing the Baor with improved technology.

scholarly journals Amino acid profile of the gelatin extracted from the scales of catla, rohu, grass carp and their mixed type

2017 ◽  
Vol 44 (2) ◽  
pp. 185-195 ◽  
Author(s):  
Muhammad Arif Hossain ◽  
Amlan Ganguly ◽  
SM Abdur Rahman ◽  
Anwar Hossain ◽  
Mahmud Hasan ◽  
...  
Keyword(s):  
Amino Acid ◽  
Glutamic Acid ◽  
Grass Carp ◽  
Mixed Type ◽  
Labeo Rohita ◽  
Amino Acid Profile ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Fish Scales ◽  
Grass Carp Ctenopharyngodon Idella

Gelatin was extracted from the scales of catla (Catla catla), rohu (Labeo rohita), grass carp (Ctenopharyngodon idella), and their mixed type. However, amino acid of the gelatin extracted from the scales of catla and rohu was profiled. While grass carp (0.78 ± 0.03) and mixed scales (0.78 ± 0.02) yielded similar level of gelatin, rohu had the lowest recovery (0.61 ± 0.05). Scales of catla had 0.72 ± 0.06% gelatin. Of the total 14 amino acids, the highest level of glutamic acid (6.58%) was found in the gelatin extracted from the scales of catla with the lowest level of leucine (0.76%). Gelatin extracted from rohu had the highest percent of glutamic acid (6.14) with lowest percent of leucine (0.59). Of the 10 EAAs, 8 were found in the gelatin extracted from the scales of catla and rohu. While the highest per cent of lysine (4.15) was found in the gelatin extracted from the scales of rohu, the lowest per cent (0.59) was leucine. Quantification of fish scales from the fish markets of Bangladesh and extraction optimization may increase both yield and efficiency.Bangladesh J. Zool. 44(2): 185-195, 2016

Improved production from seasonal ponds in Northwest Bangladesh.

2020 ◽  
Author(s):  
Christopher Morrice
Keyword(s):  
Labeo Rohita ◽  
Silver Carp ◽  
Ctenopharyngodon Idella ◽  
Soil Types ◽  
Catla Catla ◽  
Cow Manure ◽  
Hypophthalmichthys Molitrix ◽  
Triple Superphosphate ◽  
Seasonal Ponds ◽  
Silver Barb

Abstract A polyculture system was developed that was affordable to poor owners of seasonal ponds with a mean annual culture period of 200 days and situated on low quality soil types. Three main species were used silver carp (Hypophthalmichthys molitrix), silver barb (Barbonymus gonionotus) and common carp (Cyprinus carpio). Stocked in smaller numbers wererohu (Labeo rohita), catla (Catla catla), mrigal (Cirrhinus cirrhosus)and grass carp (Ctenopharyngodon idella). Pond preparation and management were dependent on the use of lime, cow manure, triple superphosphate (TSP) and urea. Duckweed, green vegetables and rice bran were the principle supplementary feeds. This system raised production levels from 740 kg ha-1 to 2195 kg ha-1 with a cost:benefit ratio of 1:3.8.

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