The effects of probiotics (Bacillus sp.) on the growth and survival rate of White shrimp (Litopenaeus vannamei) in salinity 30ppt and 40ppt
Subject Areas : Journal of Large Animal Clinical Science Research(JLACSR)
Keywords: Salinity, probiotics, Litopenaeus vannamei, White shrimp, pellet of growth stage,
Abstract :
The main goal of this study was to understand the effects of dissolved probiotics powder on the growth and survival rate of white shrimp in water salinity 30ppt and 40ppt that is found in Bushehr province during 45 days of the study. This research was conducted in four treatment groups each with three replicates including two experimental treatments were feed by dissolved probiotics powder and pellet of growth stage in salinity 30ppt and 40ppt and two control groups were feed by pellet of growth stage in salinity 30ppt and 40ppt. The result showed that growth and survival rate of treatment groups in salinity 30ppt were feed by dissolved probiotics powder were higher than those of the control (without increasing dissolved probiotics powder) (p < 0.05). Although growth rate of treatment groups in salinity 40ppt was higher than those of control (without increasing dissolved probiotics powder in salinity 40ppt) but no statistically significant difference were found (P>0.05) while survival rate of treatment groups in salinity 40ppt was significantly higher than those of the control (p < 0.05). Also, the results indicated that growth and survival factors of treatment groups in salinity 30ppt in comparison with those of the control in salinity 40ppt were higher significantly. Based on the results, we conclude that feeding with dissolved probiotics powder in salinity 30ppt with pellet of growth stage can be very useful than in salinity 40ppt.The results of this survey were analyzed through ANOVA test, LSD test, and SPSS statistic soft.
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