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Showing 4 results for Proximate Composition
A. Zaefarian , S. Yeganeh , H. Oraji , Kh. Jani Khalili , Volume 25, Issue 1 (4-2016)
Abstract
This study was conducted to investigate the effects of periods of starvation and refeeding on some hematological, serum parameters and whole body proximate composition in Caspian salmon (Salmo trutta caspius). 240 samples of the Caspian salmon with an average weight of 13.73 ± 0.63 g were kept in 300 liter polyethylene tanks. Samples were fed twice a day with Rainbow trout commercial feed to the point of satiation. This experiment lasted for 10 weeks with control (without starvation) and 3 starvation treatments including 2, 4 and 6 weeks of starvation followed by 4 weeks of refeeding with 3 replicates. During rearing period, the average of water temperature, pH and dissolved oxygen were 14.15±0.27 ° C, 8.44±0.17 and 6.34±0.24 mgl-1, respectively. At the end of starvation period, the results of blood parameters showed that starvation significantly increased red blood cells and hematocrit in treatment with 2 weeks of starvation (0.893±0.58 × 106/mm3) and 6 weeks of starvation (42.33±3.21 %, P<0.05), respectively. At the end of trial, the highest value of white blood cells belonged to 6 weeks starvation treatment (14.2±0.12 × 103/mm3) while the lowest (10±0.60 × 103/mm3) was observed in the control. Results of the biochemical serum parameters indicated the lowest amount of total protein (1.71±0.88 mg/dl) and glucose (41.35±1.44 mg/dl) were obtained in 6 weeks starvation treatment, right after the starvation period (P<0.05). At the end of the starvation period, the whole body protein content of control was lower than other treatmens (P<0.05), but after 2 weeks of refeeding, whole body protein content of 2 and 4 weeks starvation treatments didn't show any significant difference compared to control (P>0.05). At the end of the experiment, the lowest value of lipid belonged to starvation treatments while the highest value was observed in control (P<0.05). Generally, this can be inferred that Caspian salmon fish can tolerate starvation for 2 weeks without any negative impact on blood and serum biochemical parameters and for 4 weeks on whole body proximate composition.
G. Diba, Sh. Jamili, E. Ramezani Fard, Volume 25, Issue 4 (1-2017)
Abstract
Sea cucumber is a valuable resource containing several materials that can be used as natural products and pharmaceutical industries. In this study, proximate composition and the amount of total phenols, flavonoids and antioxidant activity of fresh and rehydrated (after drying) sea cucumber, Holothuria parva, were examined. The samples were collected from Bandar Lengeh in the Persian Gulf during low tide and kept frozen. The samples were freeze-dried and the moisture content was calculated. The protein, lipid, ash and carbohydrate contents were then measured. The amounts of antioxidant activity (DPPH), phenol and flavonoid contents were also measured. All results have possibility (p<0.05). In fresh sample, the moisture, protein, lipid, ash and carbohydrate contents were ±81.20, ± 12.00, ± 0.34, ±5.50 and ±0.95%, respectively, while they were ±92.50, ± 3.76, ±0.36, ±1.00 and ±2.07% in rehydrated sample. The antioxidant activity in fresh and rehydrated samples were equal to ±0.063 and ±0.060 mg vitamin C/g dry sample, respectively. The IC50 in fresh sample was ±5.26 while in the rehydrated sample was ±4.14. Total phenol content of fresh and rehydrated samples were equal to ±0.22 and ±0.19 mg gallic acid/g dry sample, repectively. The flavonoid contents in fresh and rehydrated samples were equal to ±3.86 and ±5.02 mg Quercetin/g dry sample, respectively. The amounts of protein and ash in fresh sample were significantly higher than rehydrated sample with significant difference (p<0.05). Moisture in rehydrated sample was significantly higher than fresh sample with significant difference (p<0.05). There were no significant difference between fresh and rehydrated samples in terms of their phenon and flavonoid contents. The DPPH radical scavenging capacity was significantly higher in the fresh sample compared to the rehydrated sample with significant difference (p<0.05). It can be concluded that this species of fresh sea cucumber has more antioxidant activity than rehydrated (after drying) sea cucumber and more beneficial to be used in pharmaceutical and food industries.
M. Yasemi, A. Sarpanah, M. Mahmoudi Khoshdarehgi, M. Parsa, Volume 26, Issue 2 (7-2017)
Abstract
In this study, in order to investigate the effect of Caraway (Carum carvi) on growth parameters and body approximate composition of Huso huso (Linnaeus; 1758) fingerlings, 3 diet containing 10%, 15% and 20% of Caraway with control diet that had not Caraway in its composition was utilized for feeding the Huso huso fingerlings. Fishes with initial mean weight of 10 g were fed with control diets in 7 weeks and growth parameters including total length, total weight, protein efficiency ratio, feed conversation rate and body approximate compositions were measured and analyzed. Results showed that the diet with 15% Caraway has the best effect on growth parameters of Huso huso fingerlings and lead to more gaining weight (146.60±1.85 g) than other diets. Moreover, between body approximate compositions, only the protein and moisture level were affected by diets containing Caraway. Maximum protein was observed in fingerlings fed with diets containing 10% and 20% Caraway. According to obtained results, using the diet with 15% Caraway recommend in order to enhance growth of Huso huso fingerlings.
M. Hafezieh, Sh. Jamili, Sh. Dadgar, Volume 27, Issue 4 (10-2018)
Abstract
In this study, proximate composition of Holothuria leucospilota from Sistan and Baluchistan, Hormozgan to some parts of Bushehr provinces which were caught by diving, during autumn and winter 2016 and spring and summer 2017, determined. For this purpose, one station was selected in each province, three specimens from each three replication of different seasons sampled. In nutrition laboratory, all specimens from replication of each season of separated province, minced and analyzed proximate compositions protein, lipid, ash and humidity based on standard methods. Results showed that the studied sea cucumber species compromised relative high protein level (p<0.05). The highest protein content was found in Hormozgan at summer season (15±3.69) and lowest not significantly in Bushehr at autumn season (10±1.73) and Sistan and Baluchistan province at spring season (10±1.8), caused by higher WT. and consequently higer chlorophyll a contents in Hormozgan water at summer season compare to samples from other studies provinces at the same seasons. Humidity percentage were the highest in the sea cucumber caught at winter both in Bushehr (86.1±8.43) and Sistan–Baluchistan (86.1±7.43) provinces not significantly (p>0.05), while the lowest (p<0.05) was obtained from Hormozgan samples at spring season (81.1±5.63). Lipid contents with low levels in this species showed the highest in Sistan and Baluchistan province at winter season (0.29±0.08) and the lowest lipid content was obtained from sampled in Hormozgan province at Summer time (0.12±0.02) (p<0.05). Ash body content of H. leucospilota species was the highest in samples from Bushehr province at winter season (3.0±0.24) and the lowest ash was found in specimens from Hormozgan province at winter season (2.08±0.24) (p<0.05).
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