Present status and fish seed production of the hatcheries of six upazilas of Rajshahi District

Abstract

An investigation was conducted during the period from March to December, 2009 to know the status and fish seed production of the hatcheries of six upazilas of Rajshahi district. All the hatcheries were established during 1968 to 2003. The occupations of the hatchery owners are hatchery business and others. Training status of the hatchery owners shows that in maximum cases they had no training and other cases had short term training, consulting with UFO etc. Funding source was self and loan, land ownership was own and lease. Fish disease occurs seldomly. The area of hatchery buildings ranged from 5 to 33 decimals. The water carrying capacity of overhead tanks ranged from 9091.90 to 409135.5 liter. . The number of permanent workers ranged from 2 to 6 in all seasons. Six native species (rui, catla, mrigel, calibaush, bata and gonia) and six exotic species (silvercarp, bighead carp, grass carp, common carp, Thai pangus and Thai puti) were used for seed production. Two types of hormonal injections, such as Pituitary Gland (PG) and Human Chorionic Gonadotropin (HCG) were used for this purpose. Average fry production were for rui, 140. 38 ± 127.02 kg, catla, 37.25 ± 29.24 kg, mrigel, 105.63 ± 54.84 kg, calibaush, 13.50 ± 5.75 kg, gonia, 32 ± 0 kg, bata, 166 ± 113.27 kg, silvercarp, 132.38 ± 96.32 kg, bighead carp, 120.71 ± 116.62 kg, grass carp, 31 ± 11.53 kg, common carp, 140.83 ± 93.83 kg, Thai pangus, 10 ± 0 kg, Thai puti, 42.33 ± 33.71 kg was recorded in some surveyed private hatcheries. The total fry production in some surveyed hatcheries ranged from 85 to 1698 kg with an average of 662.75 ± 513.83 kg.

Constraints and prospects of carp production in Rajshahi and Natore districts, Bangladesh

“…Fisheries is one of the major components of agricultural activities in Bangladesh and plays a vital role in nutrition, employment, income generation and foreign exchange earnings (Bhuiyan et al, 2011). Carp polyculture is the most popular form of aquaculture practice in Rajshahi and Natore districts.…”

Fish farming status at Sreemangal upazila of Moulvibazar district, Bangladesh

“…Aquaculture production, particularly pond aquaculture may be are liable source of attaining increased fish production so as to provide and feed the continually rising population of the planet (FAO, 2010). Fish and fishery resources play a vital role in improving the socio-economic condition, combating malnutrition, earning foreign currency and creating employment opportunities in Bangladesh (Bhuiyan et al, 2011). More than 17.5 million people are engaged with this sector on full time and part time basis (FRSS, 2015).…”

Review of the current situation, problems, and challenges in fish seed production and supply for Bangladesh's aquaculture development

“…The two primary sources of fish seed are natural sources such as rivers, as well as government and private hatcheries (Bhuyan et al, 2011). In 2021, the total fish seed production from both sources was 670.953 metric tons (MT), which was approximately 2.5 times higher than 276.481 MTin 2001-2002.…”

“…Therefore, some hatcheries were observed to use small and unhealthy broods (Debnath et al, 2020). For induced spawning, a variety of inducing agents, including pituitary gland (PG), human chorionic gonadotropin (HCG), ovaprime, ovitide, and ovaline are used in hatcheries (Aktar et al, 2014;Bhuyan et al, 2011;Biswas et al, 2021;Islam et al, 2017c). Another hormone used in hatcheries is 17a-methyltestosterone, a sex-reversal hormone for producing monosex tilapia (Debnath et al, 2020).…”