Research on rearing Anguilla marmorata at Nhat Nam Seafood single share-holder limited company, Tuyen Quang province.
DOI:
https://doi.org/10.51453/2354-1431/2024/1125Keywords:
Anguilla marmorata, Fish breeding nursery, level I breedAbstract
Experimental rearing of Anguilla marmorata in tanks in Na Hang Tuyen Quang district with a stocking density of 500 fish/m3; Powdered synthetic food with minimum protein content (P) = 48-50%, lipid: ≥ 4.0, fiber ≤ 3.0, moisture ≤ 10; calcium 2.0 - 5.0; ash ≤ 17 and mixed with vitamins, digestive enzymes, minerals; Diet: 3-5% of fish weight/day, adjusted according to the fish's ability to catch prey; Fish feeding time is at 8:00 a.m. and 6:00 or 7:00 p.m. daily; Water pH from 7 - 8; temperature 23-30oC; DO >5 mg/l. The results of rearing show that after 3 rounds of stocking rearing, the growth rate of fish is quite good. In the first round, the survival rate is the lowest (73%), and later on, the survival rate is higher (80%). Weight increases on average 6-7 grams/month, length 4-6cm/month. Total herd weight = 1,993.0 kg, average size ± 50 grams/head.
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References
Hoang Van Duat and co-workers 2015. Improving technology for nursery and commercial raising of Anguilla marmorata in industrial form. Report the results of national projects under the program of Research, Application and Development of Technology for the Production of Key Products, Code KC.06.DA 11/19-15.
Le Hoang 2008. Techniques for rearing Anguilla spp. Disseminating knowledge about Vietnamese fisheries promotion.
Ly Van Khanh, Tran Thi Thanh Hien, Tran Ngoc Hai, Can Tho University 2013. Experimental rearing of Anguilla marmorata eel with different types of food in a water circulation system. Can Tho University Journal of Science No. 26 (2013): 143-148.
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