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Abstract
This study was conducted with 2 experiments to determine the appropriate feeding rate of the grow-out culture of snails Babylonia areolata. Each experiment was run with 3 replications with 4 feeding rates of commercial feed (1, 2, 4, and 6%) or fresh fish (3, 6, 9, and 12%) according to a completely randomized design. The body weight and height of snails at the beginning of the experiment was 3,3 ± 0,01 g và 2,2 ± 0,03 cm. The results showed that the growth of snails was affected by feeding rate (p<0.05). For the fresh fish experiment, the higher the feeding rate was, the higher the snail growth rate was. The higher weight of snails was at a feeding rate of 9% or 12% corresponding to 6.45 g/individual or 6.12 g/individual, the lowest was at a feeding rate of 3%, only 4.91 g/individual. On the contrary, with the higher feeding rates of commercial feed, the snail growth tended to decrease, the best growth rate of snails was at the feeding rate of 2%/day. The higher feeding rates were, the higher feed conversion ratio was (p<0.05). The survival rate of snails did not show significant differences by the feeding rate (p>0.05) of commercial feed or fresh fish. The survival rates of snails in all treatments of both experiments reached >72%. The concentrations of water environmental parameters related to nitrogen and phosphorus gradually increased with the feeding rate (p<0.05). A second polynomial regression equation analysis of growth parameters (%) and feeding rate (%) suggested that the optimal feeding rate for the best growth of snails was 1.53% for commercial feed and 10.8% for fresh fish.
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References
Ngô Thị Thu Thảo, Hứa Thái Nhân, Huỳnh Hàn Châu và Trần Ngọc Hải. (2009). Thử nghiệm nuôi thương phẩm ôc hương (Babylonia areolata) bằng các nguồn thức ăn khác nhau trong hệ thống tuần hoàn. Tạp chí Khoa học Trường Đại học Cần Thơ, (11), 218-227.
Chu Chí Thiết và Lê Văn Khôi. (2006). Thử nghiệm nuôi ốc hương (Babylonia areolata) thương phẩm trong hệ thống lọc sinh học với hai loại nền đáy cát và đáy trơ, pp. 73-81, Viện NCNT Thủy sản 1, Bộ Thủy sản, Hạ Long, Quảng Ninh ngày 9-10/10/2006.
Nguyễn Thị Xuân Thu. (2006). Kỹ thuật sản xuất giống và nuôi ốc hương (Babylonia areolata Link, 1807. Nhà xuất bản Nông nghiệp thành phố Hồ Chí Minh.
Nguyễn Thị Xuân Thu, Hứa Ngọc Phúc, Mai Duy Minh, Nguyễn Thị Bích Ngọc, Nguyễn Văn Hà, Phan Đăng Hùng và Kiều Tiến Yên. (2004) Nghiên cứu đặc điểm sinh học, kỹ thuật sản xuất giống nhân tạo và nuôi thương phẩm ốc hương Babylonia areolata (Link 1807). Tuyển tập các công trình nghiên cứu khoa học công nghệ (1984-2004), pp. 267-321.
Nguyễn Duy Quỳnh Trâm. (2016). Giáo trình Quản lý chất lượng nước trong nuôi trồng thủy sản. Nhà xuất bản Đại học Huế.
Lê Vịnh, Trần Thị Bích Thủy và Nguyễn Minh Hường. (2007). Nghiên cứu nhu cầu dinh dưỡng và bước đầu thử nghiệm sản xuất thức ăn hỗn hợp nuôi ốc hương (Babylonia areolata) thương phẩm. pp. 351-362. Nhà xuất bản Nông nghiệp.
AOAC. (1995). Official Methods of Analysis, 14th Edition, Association of Official Analytical Chemists, Washington DC.
Chaitanawisuti, N., Kritsanapuntu, A., Natsukari, Y., & Kathinmai, S. (2001). Effects of feeding rates on the growth, survival and feed utilization of hatchery-reared juvenile spotted babylon Babylonia areolata Link 1807 in a flowthrough seawater system. Aquaculture Research, 32(9), 689-692.
Chaitanawisuti, N., Kritsanapuntu, S., & Santaweesuk, W. (2010) Growth and Water Quality for Grow-out of Hatchery-Reared Juvenile Spotted Babylon (Babylonia areolata) Exposed to Different Water Management Practices in Earthen Ponds. Journal of Applied Aquaculture, 22(1), 1-10.
Chaitanawisuti, N., & Kritsanapuntu, S. (1999). Effects of different feeding regimes on growth, survival and feed conversion of hatchery-reared juveniles of the gastropod mollusc spotted babylon Babylonia areolata (Link 1807) in flowthrough culture systems. Aquaculture Research, 30, 589-593.
Chaitanawisuti, N., Rodruang, C., & Piyatiratitivorakul, S. (2018). Optimum dietary protein levels and protein to energy ratios on growth and survival of juveniles spotted Babylon (Babylonia areolata Link) under the recirculating seawater conditions. African Journal of Fisheries Science ISSN 2375-0715, 6(4), 1-7.
Chelladurai, G., & Karthick, N. (2017a). Effect of new formulated diets on growth and biochemical parameters of Babylonia spirata (LIN, 1758), Gulf of Mannar. Online Journal of Animal and Feed Research, 7(4), 91-96.
Chelladurai, G., & Karthick, N. (2017b). Influence of diets on growth and biochemical parameters of Babylonia spirata. Geology, Ecology, and Landscapes, 1(3), 162-166.
Kritsanapuntu, S., Chaitanawisuti, N., Santhaweesuk, W., & Natsukari, Y. (2008). Growth performances for monoculture and polyculture of hatchery-reared juvenile spotted babylon, Babylonia areolata Link, 1807, in large-scale earthen ponds. Aquaculture Research, 39(14), 1556-1561.
Kritsanapuntu, S., Chaitanawisuti, N., Santhaweesuk, W., &Natsukari, Y. (2009) Effects of stocking density and water exchange regimes on growth and survival of juvenile spotted babylon, Babylona areolata (Link), cultured in experimental earthen ponds. Aquaculture Research, 40, 337-343.
Mai M.D., Nguyen Q.N., Tran B.T.T., & Vu B.D.T. (2022). Growth Performance of Babylon Snails (Babylonia areolata Link, 1807) Fed Formulated Diet in Ponds and Recirculating Aquaculture System. Agriculture, Forestry and Fisheries, 11, 180-5.
Mai, M., & Pham, G. (2021). Effects of dietary formulated feed on growth and survival of Babylon snails (Babylonia areolata Link, 1807). Science and Technology Journal of Agriculture & Rural Development, (2), 79-85.
Mgaya, Y.D., & Mercer, J.P. (1995). The effects of size grading and stocking density on growth performance of juvenile abalone, Haliotis tuberculata Linnaeus. Aquaculture, 136(3), 297-312.
Zhong, M., Liu, X., Xu, R., Liu, X., Jiang, Q., Song, X., Lu, Y., Luo, X., Yue, C., Qin, S., & Lü, W. (2023). Effects of light quality and intensity on the juvenile physiological metabolism of Babylonia areolata. Aquaculture Reports, 33, 101758.