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First assessment of the potential for coculture of sandfish (Holothuria scabra) with Babylon snail (Babylonia areolata) in Vietnam
Journal of the World Aquaculture Society ( IF 2.8 ) Pub Date : 2019-12-12 , DOI: 10.1111/jwas.12676
Gregory T. Dobson 1 , Nguyen D. Q. Duy 2 , Paul C. Southgate 3
Affiliation  

The potential for the coculture of sandfish, Holothuria scabra and Babylon snail, Babylonia areolata was investigated. Sandfish (weight 1.87 ± 0.41 g) were cultured at low (25 ind/m2; 46.75 g/m2), medium (50 ind/m2; 93.5 g/m2), and high (100 ind/m2; 187 g/m2) densities in monoculture and in coculture with Babylonia at a density of 400 ind/m2 (208 g/m2). In monoculture, sandfish were provided with 1 g m−2 day−1 commercial prawn starter feed. In coculture, trash fish provided for Babylonia (5% total wet weight per day) was the only food input. Sandfish survival over the 84‐day experiment period was reduced in coculture treatments (77.60 vs. 97.22%) but was in line with expected survival rates (80–90%) of commercial sandfish culture. Mean sandfish weight gain and absolute growth rate were around 37% greater in coculture (mean weight gain 13.42 ± 2.90 g vs. 9.77 ± 2.54 g over 84 days). No differences in Babylonia growth rate or survival were evident between sandfish density treatments. Sediment organic matter content did not differ significantly between monoculture (0.43 ± 0.03%) and coculture (0.55 ± 0.06%) treatments, but the latter had elevated concentrations of ammonia. Results provide a basis for further development of land‐based pond coculture systems for sandfish and Babylonia.

中文翻译:

在越南对沙鱼(Holothuria scabra)与巴比伦蜗牛(Babylonia areolata)进行共培养的潜力的首次评估

研究了沙鱼,整oth螺和巴比伦蜗牛,巴比伦螺共培养的潜力。低(25 ind / m 2 ; 46.75 g / m 2),中(50 ind / m 2 ; 93.5 g / m 2)和高(100 ind / m 2 ;在单种和与巴比伦共培养中的密度为187 g / m 2),密度为400 ind / m 2(208 g / m 2)。在单一养殖中,向沙鱼提供了1 g m -2-1的商业虾类起子饲料。在共养中,为巴比伦提供了杂鱼(每天总湿重5%)是唯一的食物投入。共培养处理的84天实验期内沙鱼的存活率降低了(77.60比97.22%),但与商业沙鱼养殖的预期存活率(80-90%)一致。共培养的平均沙鱼体重增加和绝对生长率增加了约37%(84天平均体重增加13.42±2.90 g vs. 9.77±2.54 g)。在沙鱼密度处理之间,巴比伦的生长率或存活率无明显差异。在单培养(0.43±0.03%)和共培养(0.55±0.06%)处理之间,沉积物有机质含量没有显着差异,但后者的氨浓度升高。结果为进一步开发沙鱼和巴比伦的陆上池塘共养系统提供了基础
更新日期:2019-12-12
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