渔业科学进展Issue(4)：85-90,6.DOI:10.11758/yykxjz.20140413
生物絮团对水质的调控作用及仿刺参（Apostichopus japonicus）幼参生长的影响
Effects of Bioflocs on the Water Quality Controland the Growth of Apostichopus japonicus
摘要
Abstract
Due to a rapid development in artificial breeding of juvenile sea cucumberApostichopus japonicus (Selenka), excessive inorganic nitrogen and organic matters in the discharged water greatly increases the eco-environmental pressure. Bioflocs technology could be a solution to this issue. In this study, we first examined the water quality in breeding ponds of juvenile sea cucumber. Then we added carbohydrates as carbone source and three probiotics into the water, and explored the effects of these additives on biofloc formation and the water quality. We also analyzed the inorganic nitrogen content, the total suspended solids content, the total bacterial count, and the growth ofA. japonicus in the presence of the additives. The goal of our study was to provide references about the effects of bioflocs on the ecology and environment in juvenile sea cucumber culture industry. In accordance to the Specification for Marine Monitoring periodical analysis of the water quality was conducted through simulation tests and field experiments. The body weight gain and the special growth rate of juvenile sea cucumbers were also evaluated in the bioflocs system. The results showed that the nitrite nitrogen was readily to accumulate up to 0.25 mg/L. After the addition ofBacillus, the total suspended solids and the total bacterial count in the water both reached their highest values, andVibrio and coliforms were not detected. On the 20th day, the body weight gain (44.34 g) and the special growth rate (2.19%/d) ofA. japonicus treated with pure sucrose were significantly higher than those with mixed carbon sources and those in the control group; The weight gain and the special growth rate in theBacillus and sucrose group were the highest among all treatments, up to 66.60 g and 3.01%/d respectively (P<0.05). The two parameters in groups treated with mixed carbon sources decreased gradually with the increase in corn starch content. In conclusion, in the presence of sucrose as the carbon source, bioflocs formed withBacillus could improve the water quality, the structure of the microbial community, and the growth of juvenile sea cucumber.关键词
生物絮团/水质/调控作用/仿刺参/生长Key words
Bioflocs/Water quality/Regulation/Apostichopus japonicus (Selenka)/Growth分类
农业科技引用本文复制引用
李斌,任利华,孙玉增,邢红艳,王忠全,宋秀凯,张秀珍,马元庆,王斌,宋向军,刘义豪,刘爱英,白艳艳,靳洋..生物絮团对水质的调控作用及仿刺参（Apostichopus japonicus）幼参生长的影响[J].渔业科学进展,2014,(4):85-90,6.基金项目
山东省农业重大应用技术创新项目(2011-2013)、海洋公益性行业科研专项(201305005)、海洋经济创新发展区域示范项目(20130125)和水生动物营养与饲料“泰山学者”岗位项目(2007-2012)共同资助。 （2011-2013）
