The role of nursery system in the sustainable development of shrimp farming in the country
Subject Areas : New Technologies in Aquaculture DevelopmentKeywords: Sustainable Development, Litopenaeus vannamei, shrimp culture, Keywords: Nursery,
Abstract :
AbstractIn this study, the impact of the use nursery system of Litopenaeus vannamei shrimp on the economy for its sustainable development was investigated. Therefore, growth indices and survival indices and daily growth rate of Litopenaeus vannamei shrimp were compared in two systems with and without immaturity. Three ponds of larval pl12 and another three ponds of unripe shrimp were stored for 45 days in the greenhouse with the same density of 100,000 pieces per hectare in the pound one of the in Abadan Choebdeh shrimp farms. The same food was fed and after 75 days, growth and survival indices, feed conversion ratio and daily growth rate were calculated .The study was performed in 6 pounds of 7000 m2 in two treatments with 3 replications. The breeding period was 75 days and the average temperature was27±5°C. The results showed that in the treatment that used nursery system shrimp in breeding ponds, there was a significant difference in growth, survival and daily growth rate compared to the control group. Also, the production per hectares and final weight were significantly higher than the control group and the feed conversion ratio in the nursery system treatment was significantly lower than the control group. Due to the reduction of shrimp production time in this system compared to the control group. Therefore, nursery system reduces the risk of disease and more economical production and sustainable development of the industry.
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