Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (2): 144-148.doi: 10.11924/j.issn.1000-6850.casb18090090

Special Issue: 资源与环境 水产渔业 农业生态

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The Application Strategy of Probiotics Affects Growth and Cultural Water Quality of Apostichopus japonicus

Han Sha1, Qu Hongxia2, Li Chenglin1(), Hu Wei1, Zhao Bin1, Liu Zhaocun3   

  1. 1 Marine Biology Institute of Shandong Province, Qingdao Shandong 266104
    2 Extension Station of Fishery Technology of Rushan City, Rushan Shandong 264500
    3 Marine Science and Technology Corporation of Yellow River Delta of Shandong Province, Dongying Shandong 257000
  • Received:2018-09-18 Revised:2018-12-19 Online:2020-01-15 Published:2020-04-30
  • Contact: Li Chenglin E-mail:lcl_xh@hotmail.com

Abstract:

The paper aims to study the effects of the application strategy of probiotics on growth and cultural water quality of Apostichopus japonicus. The Apostichopus japonicus with body weight of (7.81±0.25) g were fed with diet mixed with probiotics (mainly bacillus and lactobacillus) for different time (0, 6, 9, 12, 15 h). The experiment was continued for 30 days and the water was changed every 10 days. The results showed that the specific growth rate (SGR) of A. japonicus in experimental groups were significantly higher than that in control group (P<0.05). The SGR of the A. japonicus fed with diet mixed with probiotics for 12 hours was the highest of 0.618%/d,which was 1.52 times as that of the control group, but there was no significant difference with the group of diet mixed for 9 hours. The level of ammonia, nitrite and COD in the water of the control group increased with the time extended, and the water indicators of the experiment groups increased with the time extending of the mixed diet. The level of the water indicators in group with diet mixed for 0 hours was the lowest,but there was no significant difference among the experiment groups and the indicators were significantly lower than those in the control group at the end of the experiment. The results indicated that the A. japonicus fed with the diet mixed with probiotics for 9 to 12 hours had the best effect on the growth and water quality.

Key words: probiotics, Apostichopus japonicus, application strategy, growth, water quality

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