Showing 3 results for Sea Bass
, Mahmoud Nafisi Bahabadi, , , ,
Volume 5, Issue 2 (9-2016)
Abstract
In the current study, the effect of fresh water and different salinities of 15, 35 and 50 ppt on growth, feeding, body composition, glucose and cortisol in Asian sea bass (Lates calcarifer); were investigated. 180 fingerlings with average weight of 34.36±0.41 gram in 12 circular fiberglass tanks with 300 liter volumes were administered. Feedinng was done to satiation twice a day for 30 days. At the end of the experiment, biometry carried out and plasma and carcass samples were collected for estimating blood biochemical parameters and whole body composition. The obtained results showed that freshwater treatment had a significant difference in growth and feeding performance with other treatments (p < 0.05). Also, the results of carcass analyze showed that freshwater treatment moisture percentage was significantly higher (72.07±0.11) compared to other treatments (p < 0.05). Glucose and cortisol value in 15 ppt treatment were significantly higher at 35, 50 ppt treatment and 35 ppt, freshwater treatment, respectively (p < 0.05). Overall, this study showed this species is able to tolerate changes in salinity in the surrounding medium from seawater to brackish water through a period of 30 days and successfully adapt to freshwater without showing mortality. But, it could not be a good case for culture in fresh water because of using high energy for osmoregulation in fresh water.
Afshin Adeli, Siamak Yousefi Siakalroudi,
Volume 10, Issue 4 (12-2021)
Abstract
Government support for attracting investment in Persian Gulf marine fish farming has provided the grounds for Iran's fisheries development. Sea bass is a valuable species in the global market that, while helping food security and exports, also brings offshore security to the country by farming in marine cages. Production of more than 26,000 tons in the five years leading up to 2019 and its 45% growth in southern Iran promises more success for it. The study reviews Iran's position in the production of Sea bass fish in the southern waters of the country and identifies its strengths, weaknesses, and opportunities and threats. Therefore, with self-sufficiency in the supply of fry and inputs, strengthening training and research in the field of marine fish, organizing the internal market and continuous monitoring of the international market, monitoring pollution and its environmental impact assessment and developing the support chain of related industries before and after Will be able to provide sustainable development.
Volume 20, Issue 137 (7-2023)
Abstract
This study aimed to investigate the effect of aloe vera gel coating (Aloe barbadensis Miller) with different concentration on quality and shelf life of fresh fish fillets Asian sea bass (Lates calcarifer) during refrigerated storage (4º) was performed. The desired concentration of 40%, 70%, 100% and a treatment of uncoated as controls. Chemical and microbial tests including TVB-N, TBA, PH , TVC and sensory analysis (color, odor, tissue and general) for treatments on days 1, 6, 11,16 was conducted. The treatments coated with the gel TVB-N and TBA from the sixth day showed a significant difference with the control treatment(p<0/05) And on the sixteenth day of treatment was seen in 40% best results. PH value also increased over time and was higher in the control of other treatments on the final day minimum value PH of the treatment was 70% sample. TVC value is significantly (p<0/05) higher than the sixth day after the treatment was greater than the other and 40% on the final day had the lowest bacteria count. At the end of the control of chemical and biological indicators on the situation was unacceptable and sensory assessment higher than other treatments to control. As a result of this study, covering 40% and 70% Aloe Vera Gel addition to chemical factors and Asian sea bass fillet also had good effects on sensory index. And cover the gel with a concentration of 40% and 70% for the eleventh day is recommended.
Keywords: aloe vera Gel coating, Asian Sea bass, Gel concentration, Durability
