scholarly journals Effect of inorganic fertilizer on the fish growth and production in polyculture system of Bangladesh

1970 ◽  
Vol 26 ◽  
pp. 77-80 ◽  
Author(s):  
MA Sayeed ◽  
MT Alam ◽  
S Sultana ◽  
MS Ali ◽  
MS Azad ◽  
...  
Keyword(s):  
Silver Carp ◽  
Optimal Dose ◽  
Water Area ◽  
Fish Growth ◽  
Inorganic Fertilizer ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Fish Production ◽  
Significant Difference ◽  
Grass Carp Ctenopharyngodon Idella

A study was carried out on the optimal dose of inorganic fertilizer used in carp polyculture system over a period of 10 months. Three treatments were assigned: without inorganic fertilizer, with the application of 100 kg/ha/month inorganic fertilizer and 150 kg/ha/month inorganic fertilizer as T1, T2 and T3, respectively. Each treatment had three replications. The selected indigenous carp species were Rui (Labeo rohita), Catla (Catla catla) and Mrigal (Cirrhinus mrigala), and exotic carp species were silver carp (Hypophthalamichthys molitrix), grass carp (Ctenopharyngodon idella), common carp (Cyprinus carpio) and thai sarpunti (Barbodes gonionotus). The average water area of the experimental ponds was 0.11±0.01 ha and average depth of water in all ponds was 1.26 m. The treatments showed no effect on water temperature, dissolved oxygen, alkalinity and pH. The fish production was significantly higher (P>0.05) in both the treatments T2 and T3 than that of T1 where no inorganic fertilizer was used. But there was no significant difference between T2 and T3 and T2 was with lower dose inorganic fertilizer (100 kg/ha/month) than T3. Therefore, 100 kg/ha/month inorganic fertilizers may be suggested in carp polyculture system for better production. Key words: Inorganic fertilizer, optimal dose, Polyculture, Fish production. Univ. j. zool. Rajshahi Univ. Vol. 26, 2007. pp. 77-80

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 Aquaculture practices in two seasonal floodplains of Bangladesh

2015 ◽  
Vol 41 (2) ◽  
pp. 217-228 ◽  
Author(s):  
Mahbuba Akter ◽  
Tahmina Afroz ◽  
Md Ghulam Mustafa
Keyword(s):  
Capital Investment ◽  
Ctenopharyngodon Idella ◽  
Variable Cost ◽  
Catla Catla ◽  
Cost Ratio ◽  
Fish Production ◽  
Net Income ◽  
Cost Share ◽  
Benefit Cost Ratio ◽  
Benefit Cost

A comparative technical and economic analysis of two communitybased seasonal floodplains (Khirai and Angrail) of Daudkandi Upazila, Comilla during 2008 to 2010, are represented in this paper. The two floodplains differed mainly in management and fish production which were related to capital investment, variable cost, share of profits and proportional reimbursement to the fishers. Local management committees have been developed in each floodplain with significant differences. Average 142 kg/ha of fish fingerlings (carps such as Catla catla, Labeo rohita, Cirrhinus cirrhosus, Labeo calbasu, Labeo bata and exotic species such as Hypopthalmicthys molitrix, Aristichthys nobilis, Cyprinus carpio, Ctenopharyngodon idella, Pungasius hypophthalmus, Barbonymus gonionotus, Oreochromis niloticus) were stocked at the varying proportions. Fish production obtained were 2.8 to 4.4 mt/ha and 1.1 to 1.3 mt/ha in Khirai and Angrail floodplain, respectively. The average cost of fish production, total income and the net income have been estimated as Tk. 209650 ± 54167.12/ha, Tk. 281306 ± 88263.42/ha and Tk. 71656 ± 35152.51/ha in Khirai floodplain and Tk. 62349 ± 5768.90/ha, Tk. 111930 ± 12711.02/ha and Tk. 49580 ± 6948.26/ha in Angrail floodplain, respectively. The benefit cost ratio (BCR) has been recorded as 1.33 and 1.79 in Khirai and Angrail floodplain, respectively. The results reveal that the fish production and economic benefit was higher in Khirai floodplain.Bangladesh J. Zool. 41(2): 217-228, 2013

scholarly journals Infectious Fish Disease Occurrence in Carp Culture Ponds of West Godavari District, Andhra Pradesh, India

2021 ◽  
Vol 10 (11) ◽  
pp. 376-386
Author(s):  
T. Suguna
Keyword(s):  
Andhra Pradesh ◽  
Silver Carp ◽  
Current Trend ◽  
Winter Season ◽  
Disease Diagnosis ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Shrimp Culture ◽  
Freshwater Aquaculture ◽  
Major Carps

Aquaculture is one of the fastest growing food producing sector in the world. In India over the last three decades, aquaculture has developed significantly, earning considerable amount of foreign exchange, besides providing employment. India is basically a carp country. Where in the indigenous major carps: Catla (Catla catla), rohu (Labeo rohita), mrigal (Cirrhinus mrigal), exotic carps like common carp (Cyprinus carpio) grass carp (Ctenopharyngodon idella), silver carp (Hypophthalmicthys molitrix) along with air breathing fishes, Clarias batrachus, Heteropneuestes fossils, Pangasius sps. are being widely cultured accounting for bulk of freshwater aquaculture production. In the last few years, the exotic catfish Pangasianodon hypophthalmus and pacu Piaractus branchypomus culure is also increasing. Tilapia and Pangasius are also offer opportunities for cage culture. The focus on the production of genetically improved tilapia for market as cheep source of proteins is also enhancing (Jelte de Jong, 2017). As the scope for horizontal expansion is limited, the current trend in aquaculture development is focused towards intensification of the culture practices. The frequent occurrence of diseases and epizootics are considered to be major bottlenecks for increasing production. The diseases are mostly bacterial and parasitic origin. The diseases account for 10-5 % towards the production cost (Sahoo, P. K. et al., 2017). India is basically a carp Freshwater aquaculture has been the main stay of Indian aquaculture, in terms of total quantity as well as its share in the domestic fish basket. India is called as carp country as carp production contribute in bulk (over 82%). In Andhra Pradesh fish and shrimp culture is income generating profession. The district West Godavari of Andhra Pradesh, is specifically the fish bowl of India, generating an amount of Rs. 15.00 crores annually. Semi intensive culture practice is common, in an area of more than 2.0 lakh acres. In course of expansion and intensification of this semi extensive culture practice of the Indian major carps, over the last three decades, many economically important problems have been identified which are threatening the sustainability of the culture system. Occurrence of diseases is one of such factor affecting the socio-economic status of aqua farmers. To overcome this, an intensive surveillance was carried to document the prevalence of various diseases, season of occurrence, disease diagnosis, etiological agents, mortality rates and controlling measures, so that the severe risk for sustainability and huge economic loss can be arrested. The frequency in occurrence of septicaemia, bacterial gill disease (bacterial), dactylogyrosis, paradactylogyrosis (parasitic) and argulosis are recorded. The incidence of diseases and mortality rate are high in winter season.

scholarly journals Comparison of the Growth and Production of Carps in Polyculture Ponds with Supplemental Feed using Rice Straw and Kanchi as Substrates

Our Nature ◽  
1970 ◽  
Vol 8 (1) ◽  
pp. 92-105 ◽  
Author(s):  
S. Rai ◽  
Y. Yi ◽  
Md.A. Wahab ◽  
A.N. Bart ◽  
J.S. Diana
Keyword(s):  
Rice Straw ◽  
Labeo Rohita ◽  
Silver Carp ◽  
Fish Growth ◽  
Catla Catla ◽  
Supplemental Feeding ◽  
Gross Margin ◽  
Supplemental Feed ◽  
Common Carp Cyprinus Carpio ◽  
Weight Gains

An experiment was carried to compare the performance of rice straw and kanchi in carp polyculture ponds with supplemental feed. The experiment included two treatments in triplicates: a) rice straw substrate (3x625 kgha-1) with supplemental feeding and b) kanchi substrate (390 kanchi pond-1) with supplemental feeding. Fingerlings (n=40) of rohu, Labeo rohita (23.3±0.5 g), catla, Catla catla (26.0±0.6 g), mrigal, Cirrhinus mrigala (25.4±0.7 g), common carp, Cyprinus carpio (28.5±1.9 g) and silver carp, Hypophthalmychthys molitrix (32.1±1.3 g) were stocked at 3:2:2:2:1 ratio. Fish growth and weight gains did not vary between the rice straw and the kanchi treatment except in catla (P>0.05). Daily and total weight gains of catla was 48 and 32% higher in the kanchi treatment than in the rice straw treatment (P<0.05). However, the rice straw treatment gave more profit than the kanchi treatment. Based on fish production and gross margin, the rice straw treatment seems better for resource-poor farmers.DOI: 10.3126/on.v8i1.4316

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