p. 1269−1278
2322-5696
Vol.15/No.4
p. 1279−1292
2322-5696
Vol.15/No.4
p. 1293−1306
2322-5696
Vol.15/No.4
p. 1307−1317
2322-5696
Vol.15/No.4
p. 1318−1336
2322-5696
Vol.15/No.4
0.05). Similarly, there were no significant differences between the hand and mechanical feeding in the habituation success (p = 0.860). Based on the results of present study and previous results reported for habituation of pikeperch and walleye pond nursed juveniles, stocking densities of 4 to 8 fish L-1, feeding with dry feed with worms supplied manually and possible enrichment with vitamin C of the given food could be suggested for the successful commercial pikeperch dry feed habituation. ]]>
p. 1337−1347
2322-5696
Vol.15/No.4
<0.05). The allometric coefficient b calculated for the LWR based on various dimensions indicates both sexes grew allometrically (negative for males: b<3 and positive for females: b>3). Moreover, the values of b for LWR, LLR and condition factors did not differ significantly (p>0.05) between the sexes of S. phulo. The estimated value of WR was very close to 100 indicating the balanced habitat with available food relative to the presence of predators. To the best of our knowledge, this is the first inclusive and comprehensive explanation on the size structure of S. phulo from Bangladesh and it should be crucial for the sustainable management of this SIS fishery not only in southern coastal waters of Bangladesh but also in all of its geographical distributions including India and Myanmar.]]>
p. 1348−1361
2322-5696
Vol.15/No.4
p. 1362−1378
2322-5696
Vol.15/No.4
p. 1379−1387
2322-5696
Vol.15/No.4
p. 1388−1409
2322-5696
Vol.15/No.4
p. 1410−1424
2322-5696
Vol.15/No.4
p. 1425−1440
2322-5696
Vol.15/No.4
<0.05) on storage in different conditions of 4 and 25 ºC. Black glutinous rice bran stored at 4 °C showed significantly higher antioxidant activities analyzed by DPPH and TBARs tests (p < /em><0.05). The percentage of digestibility coefficients and protein digestibility in test diets ranged from 75.21-81.95 and 87.37-91.87 (p < /em>>0.05), respectively. The highest average daily gain, specific growth rate and protein efficiency ratio were observed in fish fed with the diet containing 150 and 200 g kg-1 black rice bran (p < /em><0.05). Feed conversion ratio was slightly better in fish fed the diet supplemented with 200 g kg-1 black glutinous rice bran. The serum biochemical values including total protein, albumin, total bilirubin, alkaline phosphatase (ALP), alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activity were not significantly different in the various experimental groups (p < /em>>0.05). Therefore, supplementation of black glutinous rice bran in tilapia diets at a rate of 200 g kg-1 resulted in better growth and had no adverse effects on digestibility and serum biochemistry. ]]>
p. 1441−1454
2322-5696
Vol.15/No.4
<0.05) in juveniles fed 6% lecithin compared to the control diet. The triglyceride level was also significantly decreased (p < /em> <0.05) in juveniles fed 4% and 6% lecithin compared to that of control group. No significant differences (p < /em>>0.05) in globulin and the ratio of albumin to globulin were found in dietary treatments. The thermal stress showed that survival rate of juveniles fed different levels of dietary chicken egg lecithin was higher than control group (p < /em><0.05). The results indicated that administration 4 to 6% of chicken egg lecithin in diets of juvenile M. sharpeyi have positive effects on promoting health status and resistance to thermal shock.]]>
p. 1455−1464
2322-5696
Vol.15/No.4
>0.05). There were significant differences in water ammonia level between different treatments (p < /em><0.05). The maximum (0.39 mg/L) and minimum (0.12 mg/L) levels of ammonia were observed in control and biofloc treatment with minimum feeding level (9%BW/day), respectively. The highest body weight gain (1.55g), growth rate (48.50 mg per day), specific growth rate (9.64%/day), biomass gain (182.1g) and body length increase (33.62mm) were observed in biofloc treatment with maximum feeding level. The highest feed conversion ratio and the lowest feed efficiency were obtained in control (p < /em><0.05). The proximate body composition analysis revealed an increase in lipid, protein and ash in biofloc treatments. Results showed that using biofloc technology can decrease water exchange amount and improve feed utilization in nursery culture of Pacific white shrimp. Moreover, presence of biofloc improved the water quality which led to the enhancement in growth performance in nursery stage of shrimp.]]>
p. 1465−1484
2322-5696
Vol.15/No.4
p. 1485−1499
2322-5696
Vol.15/No.4
p. 1500−1510
2322-5696
Vol.15/No.4
p. 1511−1525
2322-5696
Vol.15/No.4
<0.01). This fact revealed that some innate immunity parameters experience depression during upstream migration and spawning, while these parameters increase during the post spawning period, indicating the suppressive effects of spawning on fish immunity.]]>
p. 1526−1539
2322-5696
Vol.15/No.4
0.05). The concentration of chlorophyll a (chl a) has no significantly difference between pond 1 and pond 2. DGGE profiles of 18S rRNA gene fragments from the two ponds revealed that the diversity of eukaryotic plankton assemblages was highly variable. 91 bands and 71 bands were detected in pond 1 and pond 2, respectively. The average Shannon–Wiener index of pond 1 was significantly higher than pond 2. Canonical correspondence analysis (CCA) revealed that temperature played a key role in the structure of the eukaryotic plankton community in both ponds, but the nutrient concentration did not affect it. Our results suggest that DGGE method is a cost-effective way to gain insight into seasonal dynamics of eukaryotic plankton communities in culture ponds, and the increase in the number of filter-feeding silver carp and bighead carp could increase the diversity of the eukaryotic plankton community.]]>
p. 1540−1555
2322-5696
Vol.15/No.4
p. 1556−1567
2322-5696
Vol.15/No.4
p. 1568−1580
2322-5696
Vol.15/No.4
<0.05). MCV in A1(10 10CFU/g) and control groups were significantly higher than A2 (108 CFU/g) Treatment (p < /em><0.05). However, other parameters e.g. RBC, HB, MCH, MCHC had no significant different. The serum lysozyme, alternative complement activity (ACH50) and IgM levels were significantly enhanced in dietary administration E. faecium(108,1010CFU/g) in feeding period. Survival rate of fish by dietary administration E. faecium (1010CFU/g) was significantly higher (p < /em><0.05) than the other groups (86.6%).]]>
p. 1581−1592
2322-5696
Vol.15/No.4
p. 1593−1608
2322-5696
Vol.15/No.4
p. 1609−1615
2322-5696
Vol.15/No.4
p. 1616−1623
2322-5696
Vol.15/No.4
p. 1624−1631
2322-5696
Vol.15/No.4