TAILIEUCHUNG - Combined experimental ozone and probiotics in tiger prawn (Penaeus monodon) larvae rearing

This study was conducted to evaluate combination of ozone and Bio-clear (probiotics) added to experimental rearing tanks of Tiger prawn (Penaeus monodon) larvae. | Journal of Fisheries science and Technology Special issue - 2015 COMBINED EXPERIMENTAL OZONE AND PROBIOTICS IN TIGER PRAWN (PENAEUS MONODON) LARVAE REARING Nguyen Le Hoang Yen1 ABSTRACT This study was conducted to evaluate combination of ozone and Bio-clear (probiotics) added to experimental rearing tanks of Tiger prawn (Penaeus monodon) larvae. There were four experimental groups which were treated at 2 days intervals as follows: without Bio-clear (control treatment), 5 ml/m3 Bio-clear (treatment 2 - N5); 10 ml/m3 Bio-clear (treatment 3 – N10); 15 ml/m3 Bio-clear (treatment 4 - N15)The results showed that the water quality improved, healthy larvae, grow and thrive, higher survival rate when probiotics was not applied. The highest survival rate is in N15 treatment (47,89%) and lowest is in the control treatment (27,23%). Besides, the length and weight of PL12 are also the highest in this treatment (11,5 ± 0,06 mm; 1,19 ± 0,05 mg/100 PL12); significant difference (p 0,05). After 21 days rearing, postlarvae develop differences to the control treatment (10,6 ± to PL12 stage and survival rate was the lowest 0,06 mm). This result is also higher than the in the control treatment (27,23 ± 2,50%), results of the PL12 length (10,15 ± 0,08 mm) statistically significant difference (p <0,05) when only using ozone in period rearing (Diep compared with N15 treatment (47,89 ± 3,35%). Tuan Khanh, 2005). Thus, the combination of These results in N15 treatment were higher ozone and Bio-Clear in Penaeus monodon comparing with the results of postlarva larvae survival rate of Hoang Anh Do (2011) (39,39%) improvement when only using Bio-Clear in Peanaus monodon Vibrio density making healthy larvae, the larvae rearing. In addition, this survival rate is molting of larvae was simultaneously, growth higher than the experimental results of Diep Tuan and development were beter than. Khanh (2005), larvae rearing in bio-filtration . Weight system using ozone .

• Ngư nghiệp
• Combined experimental ozone
• Probiotics in tiger prawn
• Penaeus monodon
• The variation in water quality
• Surveyed parameters