scholarly journals Present status of carp hatchery and breeding operations in Bangladesh: A review

2017 ◽  
Vol 4 (2) ◽  
pp. 123-129 ◽  
Author(s):  
Nafisa Khatun ◽  
Mostt Tajnova Islam ◽  
Nishat Sultana ◽  
Sonya Mrong ◽  
Md Azizul Huq

Carps are the main species for the aquaculture system in Bangladesh, and the production of these species completely depends on timely and adequate supply of quality seeds. In hatcheries, since middle of nineties, stock deterioration was reported because of poor brood stock management and inbreeding depression and still though both public and private hatcheries and nurseries are producing fish seeds, but there has been a growing concern over the availability of good quality seeds for sustainable fish production. For that reason, the production of quality carp spawns and fingerlings are essential for desired production of fish in Bangladesh. We reviewed the present status of carp hatcheries along with ongoing practices of breeding in different carp hatcheries for sustainable production strategies in this region.Res. Agric., Livest. Fish.4(2): 123-129, August 2017

Omni-Akuatika ◽  
2018 ◽  
Vol 14 (2) ◽  
Author(s):  
Henry Kasmanhadi Saputra ◽  
Kukuh Nirmala ◽  
Eddy Supriyono ◽  
Nurul Taufiqu Rochman

Technology for aquaculture is growing with the high demand of fish. Micro / nano bubble is one of technology that is developed to increase dissolved oxygen in water. This technology is used to increase Koi fish production in high density via RAS. The purpose of this study was to determine the characteristics of micro / nano bubble technology and its effect on biology of koi fish (Cyprinus carpio). Lutor was used to introduce micro / nano bubble in the fish tank by using fish length (e.g. 7.49 ± 0.29 cm). This research used completely randomized design with one factor (fish density) and three replications. This factor was three densities of fish at 15 fish.60 L-1 (A), 30 fish.60 L -1 (B), and 45 fish. 60 L -1 (C). The result showed that there was the absolute length of each treatments was (0.52 ± 0.03a) cm for A, treatment  B (0.36 ± 0.07ab) cm and C treatment (0.29 ± 0.08b) cm. The best treatment is A treatment (15 fish. 60 L -1) and different significant in statistic with C treatment (45 fish. 60 L-1) but not significant in statistic with B treatment (30 fish.­ 60 L -1).


2021 ◽  
pp. 43-49
Author(s):  
I. I. Nwajuaku ◽  
C. F. Okey-Onyesolu ◽  
Okeke Chukwunonso

Author(s):  
Tom Robin Olk ◽  
Henrik Jeuthe ◽  
Helgi Thorarensen ◽  
Jens Wollebæk ◽  
Espen Lydersen

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