scholarly journals Induced Breeding of Freshwater Fishes and Cost Benefit Analysis of a Selected Fish Hatchery in Jashore, Bangladesh

2021 ◽  
pp. 15-25
Author(s):  
Anusree Biswas ◽  
Moumita Choudhury ◽  
Md. Almamun Farid ◽  
M. Aminur Rahman ◽  
M. Anisur Rahman
Keyword(s):  
Cost Benefit Analysis ◽  
Silver Carp ◽  
Cost Benefit ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Benefit Analysis ◽  
Hypophthalmichthys Molitrix ◽  
Fish Hatchery ◽  
Breeding Techniques

An investigation was carried out to know the induced breeding techniques of some firewater fish species such as rui (Labeo rohita), catla (Catla catla), silver carp (Hypophthalmichthys molitrix), grass carp (Ctenopharyngodon idella), common carp (Cyprinus carpio), bighead carp (Hypophthalmichthys nobilis), sharpunti (Puntius sarana) and bata (Labeo bata) at Ma Fatima Fish Hatchery in Chanchra, Jashore, Bangladesh. The cost-benefit analysis was also performed on this hatchery for three months from May to July, 2016. The brood fishes purchased from different local sources were used for spawning. The hatchery mainly practiced induced breeding by maintaining proper age and weight of brood stock during spawning. The ranges of fertilization and hatching rates of the experimental fishes were 80.04±1.44 % to 94.35±0.54% and 75.34±3.49% to 88.68±2.76%, respectively. Total spawn production was 960, 862 and 734 kg, and the total revenue income from spawn sell was BDT 2,883,500, 2,355,100 and 1,844,800 (BDT 85 = 1 US$) in May, June and July, respectively. Estimated capital cost was BDT 87,90,000, while the operating costs were BDT 1,810,650; 1,555,105 and 1,267,680 in May, June and July, respectively. The calculated cost-benefit ratios in May, June and July were 1.59, 1.51 and 1.46, respectively. The hatchery got the highest net profit of BDT (Bangladeshi Taka) 1,041,906 in May due to the highest production and higher price of spawn, and the lowest profit of BDT 546,176 was obtained in July. So, May was found to be the peak breeding month of Ma Fatima Hatchery. The estimated cost-benefit ratio indicated that the spawn production through induced breeding techniques was profitable for the hatchery owners.

Modern features of aquaculture of cyprinids in the republic of Iraq

2020 ◽  
pp. 6-14
Author(s):  
Farhan Yasin Hamed ◽  
Adelia Zakirovna Anokhina ◽  
Natalia Viktorovna Sudakova ◽  
Damelya Kazhigalievna Magzanova
Keyword(s):  
Silver Carp ◽  
Stocking Density ◽  
Fish Farming ◽  
Pond Water ◽  
Government Support ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Natural Food ◽  
Hypophthalmichthys Molitrix ◽  
Fish Farms

It is shown that the leading role in the aquaculture of Iraq belongs to Cyprinids, which account for over 80 % of all fish farming production. The most widespread in the country are four main world species of carp aquaculture: common carp (Cyprinus carpio), grass carp (Ctenopharyngodon idella), silver carp (Hypophthalmichthys molitrix) and bighead carp (Aristichthys nobilis). Basically, the traditional technology of growing Cyprinids in ponds is used, which includes the main fish farming processes: care of broodstock to prepare them for spawning, collecting eggs and milt, eggs fertilization and incubation of embryos, raising juveniles and marketable fish. Currently, there are about 2 thousand private fish farms, which have ponds of various sizes from 4 to 100 hectares. Cultivation of Cyprinids in Iraq is carried out mainly by extensive methods: the use of the natural food base of reservoirs with low fish stocking density in polyculture. The fish productivity of ponds varies greatly in different fish farms from 1,5 to 6 t/ha, which is due to economic reasons. The data on changes in the temperature of pond water during the year and hydrochemical indicators are given, which shows favorable conditions for Cyprinids rearing. Information on the use of compound feeds for growing carp in ponds is provided, and data on the composition and nutritional value of the feed used. The fish culture indicators for the main biotechnical processes of the rearing of four Cyprinid species in Iraq are described in detail. In the conclusion, it is indicated that for the effective development of aquaculture in Iraq, government support is needed in the form of a developed long-term program and legislative acts.

scholarly journals Status of Chinese Carp Fisheries in Tunisian Freshwater Reservoirs: Threats and Opportunities

2021 ◽  
Vol 2 (10) ◽  
pp. 945-953
Author(s):  
Sami Mili ◽  
Rim Ennouri ◽  
Manel Fatnassi ◽  
Tahani Chargui ◽  
Hajer Zarrouk ◽  
...  
Keyword(s):  
Native Species ◽  
Aquatic Vegetation ◽  
Silver Carp ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Hypophthalmichthys Molitrix ◽  
Artificial Breeding ◽  
Canal Systems ◽  
The Impact ◽  
Technical Centre

The current paper aims to diagnose the state of fisheries of three Chinese carp species whish have been introduced in Tunisian reservoirs since 1981: (silver carp Hypophthalmichthys molitrix, herbivorous carp Ctenopharyngodon idella and bighead carp Aristichthys nobilis) and seeks to study the benefits and risks associated with their introduction. Chinese carps cannot reproduce naturally in freshwater reservoirs. Eventually, artificial breeding operations and seeding of the dams with farm-produced fry are carried out by the Technical Centre of Aquaculture every year. Statistical analyses have shown a strong correlation between the landed quantity and the number of fries stocked each year. The impact assessment showed that the risks and benefits associated with the introduction of the three species are variable. Regarding their benefits, it was clear that the herbivorous carp has provided effective and sustainable control of the extensive development of aquatic vegetation in the eutrophic reservoirs and canal systems. The value of the other two species, though, remains less obvious, particularly for the bighead carp. The consequences of their introduction on ecosystems and native species seem to be negligible, especially when the densities are low. Eventually, it seems judicious to increase the stocking of the herbivorous carp, silver carp and bighead carp in Tunisian reservoirs.

scholarly journals Prevalence of ectoparasites of carp fingerlings at Santaher, Bogra

1970 ◽  
Vol 27 ◽  
pp. 17-19 ◽  
Author(s):  
MD Hossain ◽  
M Kabil Hossain ◽  
M Habibur Rahman ◽  
A Akter ◽  
DA Khanom
Keyword(s):  
Silver Carp ◽  
Research Work ◽  
Winter Season ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Monogenean Parasite ◽  
Nursery Pond ◽  
Common Carp Cyprinus Carpio ◽  
Ectoparasite Infestation

The research work was conducted to find out the seasonal prevalence of ectoparasites of carp fingerlings. Seven species of parasites viz. Trichodina domerguei, Trichodina reticulata, Chilodonella cyprini, Myxobolus koi, Dactylogyroides tripathi, Dactylogyrus extensus and Dactylogyrus catlarius were recovered from 640 fingerlings of Silver carp (Hypophthalmicthys molitrix), Bighead carp (Ctenopharyngodon idella), Common carp (Cyprinus carpio), Thai punti (Puntius gonionotus), Catla (Catla catla), Rui (Labeo rohita) and Mrigal (Cirrhina mrigala) from different nursery ponds of Bogra district during June 2005 to May 2006. The highest prevalence (95%) was in Trichodina domerguei and lowest (10%) in Dactylogyrus catlarius during winter season. Average prevalence of protozoan and monogenean parasite was 37.16 in rainy season, 40.08 in winter season and 30.25 in summer season. Winter is the most disease occurring season of the year. Key words: Ectoparasite, infestation, prevalence, fingerling, nursery pond   doi:10.3329/ujzru.v27i0.1947Univ. j. zool. Rajshahi Univ. Vol. 27, 2008 pp. 17-19

scholarly journals Fish inventory and fishing practices in Candaba swamp, Philippines: their implication to fishermen’s income

2020 ◽  
Vol 6 (15) ◽  
pp. 10-16
Author(s):  
Alfred R. Mallari ◽  
Jacqueline V. Bagunu
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Net Income ◽  
Benefit Analysis ◽  
Hypophthalmichthys Molitrix ◽  
Total Income ◽  
Wet Season ◽  
Anabas Testudineus ◽  
The Cost ◽  
Fishing Practices

This study generally aimed to make an inventory of fishes in Candaba Swamp and documented the fishing practices of the local fishermen as they are related to their income. The study documented 14 different species of fishes, each representing 14 families in the Barangays of San Agustin and Dukma Paralaya. The fourteen species were the Elopshawaiensis, Glossobiusgiurus, Megalops cyprinoides,Cyprinuscarpio, Trichopodus pectoralis, Clariasbatrachus, Hypostomus plecostomus, Arius dispar, Hypophthalmichthys molitrix, Anabas testudineus, Carassiuscarasius, Labeorohita, Hypophthalmichthysnobilis, Oreochromis niloticus. The Inventory recorded the Tilapia,Common Carp and Hito species as the most dominant species in Candaba Swamp. Fishermen’s ages were between 20 to 89, most of them were between 50-59, used the “panti” (kitig) as fishing gear and with daily income ranging from 100 pesos to 1,500 pesos. The total income of the fisherman during the wet season is from 1,000 pesos to 10,000 pesos, and the daily expenses in each fishing trip is from 20 pesos to 100 pesos which is mostly used for gasoline. The fishermen’s income depended on the number of fishes they catch which was affected by changes in season. The Cost-Benefit-Analysis showed a net income Of P281.27 per day with a Return of Investment of 174.4%.

Cage fish culture in lakes of Pokhara Valley, Nepal.

2020 ◽  
Author(s):  
Madhav Shrestha
Keyword(s):  
Silver Carp ◽  
Water Bodies ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Small Scale ◽  
Hypophthalmichthys Molitrix ◽  
Support Programme ◽  
Steady Rate ◽  
Cage Aquaculture ◽  
Pokhara Valley

Abstract Pokhara valley is situated at the southwestern part of Kaski district in west Nepal. Although the valley is comprised of eight large and small lakes, cage culture is predominant in Begnas, Phewa and Rupa Lakes. A vulnerable fisher community known as pode or jalari living around the lakes of Pokhara Valley is among several ethnic groups whose livelihood is entirely dependent on fishing in these water bodies. A livelihood support programme for rehabilitation through creation of employment and income generation for this deprived community through subsistence cage aquaculture was initiated in 1972 in the lakes of the valley. Since then cage aquaculture has grown at a steady rate and at present 21,650 m3 of cages exist in these water bodies which produced an estimated 88.4 t of fish in 2004 to support the livelihoods of the 109 fisher families. Floating cages using four bamboo poles in a square as a float are popular in the fishers group. Mainly two species of carp are popular for culture in cages: bighead carp (Aristichthys nobilis) and silver carp (Hypophthalmichthys molitrix). Occasionally, other species are also stocked with bighead and silver carp such as rohu (Labeo rohita) as a biological cleaning agent to reduce fouling of the cage. The grass carp (Ctenopharyngodon idella) is also cultured in Lake Phewa on a small scale and is fed with grass. Average production of cages in Begnas, Phewa and Rupa Lakes is 3, 4.2 and 3.2 kg m-3 year-1, respectively.

scholarly journals Water quality, feeding management and cost-benefit analysis of a fish hatchery in Jessore district of Bangladesh

2016 ◽  
Vol 2 (3) ◽  
pp. 414-421
Author(s):  
Md Monirul Islam ◽  
Rashidul Hassan ◽  
BM Newaz Sharif ◽  
Md Mostafizur Rahaman ◽  
Md Aminur Islam ◽  
...  
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Benefit Analysis ◽  
Fish Hatchery ◽  
Feeding Management ◽  
Cost Benefit Ratio

The study was conducted at Ma-Fatema Fish Hatchery in Jessore from January to March, 2016. The present study was emphasized on water quality parameters, feeding management and cost- benefit analysis. The water quality parameters temperature (0C), pH, dissolved oxygen (DO) (mg/l) and transparency (cm) were measured by Celsius thermometer, pH meter, DO meter and secchi disk, respectively. The proximate composition of feed ingredients was determined by the Association of Analytical Chemists, 1980. Brood fishes were reared all year round in the brood ponds by supplying formulated feeds. Temperature was 19oC -26°C in brood ponds and 18oC-24oC in hatching jars; pH was 6.93–7.87 in brood ponds and 6.79-7.54 in the hatching jars; dissolved oxygen was 4.8-6.3 mg/l in brood ponds and 4.8-6.7 mg/l in hatching jars; transparency was 14-18 cm in the brood ponds. The percentage of farm made feed was protein (27.76%), lipid (4.9%), CHO (18.62%), ash (11.31%), fiber (6.4%), moisture (31.01%). The cost benefit ratios were 1.54, 1.32 and 1.23 and net profits were BDT 49911.67, BDT 24816.67and BDT 16366.67 respectively in January, February and March. Management of brood fish by providing quality feed and physico-chemical parameters of water were maintained in according to scientific procedure. Cost-benefit ratio of the hatchery in common carp production was satisfactory.Asian J. Med. Biol. Res. September 2016, 2(3): 414-421

scholarly journals Observation On The Induced Spawning Practices In The Hatcheries Of Rajshahi District Of Bangladesh

1970 ◽  
Vol 6 ◽  
pp. 65-68
Author(s):  
Abdus Salam Bhuiyan ◽  
Naima Aktar
Keyword(s):  
Fish Species ◽  
Average Length ◽  
Silver Carp ◽  
Bighead Carp ◽  
Ctenopharyngodon Idella ◽  
Catla Catla ◽  
Average Weight ◽  
Hatching Rate ◽  
Exotic Fish ◽  
Induced Spawning

An investigation was conducted during the period from March to December 2009 to investigate the induced spawning practices in 22 hatcheries of 6 Upazilas of Rajshahi District of Bangladesh. It was observed that, 6 native fish species viz. rui (Labeo rohita), catla (Catla catla), mrigal (Cirrhina mrigala), calibaush (Labeo calbasu), bata (Labeo bata), gonia (Labeo gonius) and six exotic fish species such as silver carp (Hypophthalmichthys moltrix), bighead carp (Aristichthys nobilis), grass carp (Ctenopharyngodon idella), common carp (Cyprinus carpio), Thai pangus (Pangasius sutchi), rajputi (Puntius gonionotus) were used in the surveyed hatcheries for induced spawning purpose. The average length limit was 41.70±13.02 to 72.81±25.98 cm, average age limit was 1.96±0.75 to 3.08±0.90 years and average weight limit was 1.83±0.79 to 7.54±3.92 kg of the brood fish. Two types of hormone injections like PG (pituitary gland) and HCG (human chorionic gonadotropin) were used for induced spawning. The rate of 1st doses of injections of PG were from 1 to 4 mg/kg and HCG from 150 to 500 IU/kg and the rate of 2nd doses of injections of PG for native and exotic species were from 4 to 8 mg/kg and 4 to 10 mg/kg respectively. The incubation period and hatching rate in different fish species varied from 10 to 72 hours and 55% to 80%, respectively. DOI: http://dx.doi.org/10.3329/jles.v6i0.9723 JLES 2011 6: 65-68

scholarly journals A Cost–Benefit Analysis of DNA Informed Apple Breeding

HortScience ◽  
2019 ◽  
Vol 54 (11) ◽  
pp. 1998-2004 ◽  
Author(s):  
Seth D. Wannemuehler ◽  
James J. Luby ◽  
Chengyan Yue ◽  
David S. Bedford ◽  
R. Karina Gallardo ◽  
...  
Keyword(s):  
Cost Benefit Analysis ◽  
Cost Benefit ◽  
Breeding Program ◽  
Breeding Methods ◽  
Benefit Analysis ◽  
Maintenance Costs ◽  
Conventional Breeding ◽  
Apple Breeding ◽  
Additional Costs ◽  
Breeding Techniques

Incorporating DNA-informed breeding techniques can improve selection efficiency for desired traits as compared with conventional breeding methods that do not use DNA-informed techniques. Incorporation of DNA technologies requires additional costs associated with reagents, equipment, and labor. To elucidate the cost-effectiveness of DNA-informed breeding in perennial crops with multiple years per generation, we conducted a cost–benefit analysis examining incorporation of marker-assisted selection (MAS), a type of DNA-informed breeding, applied to an apple breeding program. Annual operational costs for a midwest apple breeding program were used to develop a simulation with inputs including itemized costs and per unit costs for procedures at each breeding program stage. Simulations compared costs of MAS breeding techniques to conventional breeding methods to identify the break-even point (BEP) where cost-savings associated with MAS equals the accrued additional costs. Additional sensitivity analyses were conducted to examine changes in laboratory costs, seedling maintenance costs, and seedling evaluation costs. We found the BEP for this program occurs when MAS results in a removal rate of 13.18%, and changes to other costs (i.e., maintenance costs) result in a smaller percent decrease to the overall program budget. Our findings are useful to perennial crop breeding programs in which managers are considering incorporating DNA-informed breeding techniques.

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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