عنوان مقاله [English]
Recently shrimp industry has faced great challenge. Viral disease of the white spot causes the inactive of many farms. . Sea bass fish with fast growth, easy replication, tolerance to high salinity and the ability to accept formulated foods can be used as alternatives to shrimp farms. Therefore, applied research was designed. All stages of the research were conducted at Chouebdeh Abadan Shrimp Center. 9 pools of 7000 square meters were selected in 3 treatments. The treatment was stored with 12000, 13500 and 15000 fish per hectare. The fish were 40 grams. The biomass was every 3 weeks. Nutrition and growth indicatores including specific growth factor (SGR), Food conversion rate (FCR), Weight growth (WG), protein efficiency rate (PER) and survival rate (SVR) were studied. Pellet feeds were used at 2-5% body weight . Physico-chemical factors including pH and pH were measured during the course of the experiment. The results showed that final weight had a significant difference after 175 days. Treatment with high-density growth in less than two treatments. (P <0.05). The final weight was 14.9 ± 17.749,
5.9 ± 5.763 and 3.8 ± 5.662 gr. Food conversion rate did not show a significant difference in treatments. And 1.39 ± 0.33, 1.42 ± 0.05, and 1.45 ± 0.60, respectively. Survival percentage did not show significant difference. And 82.54 ± 0.86 ± 84.81 and 86.21 ± 0.87 respectively. The results showed that the density of 13500 fish /hectare was the best treatment. Can be used as a method.