摘要
【ABSTRACT】The present investigation explored the growth performance, haematological parameters and serum biochemistry of flathead grey mullet under recirculating aquaculture system (RAS) and traditional culture systems. Nine hundred healthy fish, weighing 43.80 ± 3.55 g and length 16.54 ± 0.82 cm were randomly distributed to three treatments of RAS and traditional culture systems (T1: 20% of water changed daily; T2: once‐through system 250 L/h; T3: RAS—20% of water changed weekly) in nine concrete tanks of 4000 L at stocking density of 100 fish/tank and each treatment had three replicates. Fish were fed (33.1% crude protein, 3 mm pellets) twice a day at a rate of 3% for 12 weeks. These findings suggest that the T3 followed by T2 led to notable improvements in growth performance compared to other culture systems. Significantly elevated values of weight gain, length gain, specific growth rate, average daily gain and survival % were observed in T3. The RBCs exhibited a significant decrease under T2. Haemoglobin concentrations and WBC counts significantly increased under RAS. Significant values of mean cell haemoglobin and mean cell haemoglobin concentration were recorded in T2. Total protein, albumin and globulin enhanced significantly under RAS, whereas the highest values of cortisol were observed in T2 and T3. These findings demonstrate that the RAS followed by once‐through system significantly improve growth performance, feed efficiency and survival, as well as enhancing the haematology and serum biochemical status of flathead grey mullet. In conclusion, RAS provides ideal conditions for optimizing physiological functions, growth performance and fish health.
摘要译文
【摘要】本研究探讨了在循环水产养殖系统（RAS）和传统培养系统下，Flathead Gray Mullet的生长性能，血液学参数和血清生物化学。Nine hundred healthy fish, weighing 43.80 ± 3.55 g and length 16.54 ± 0.82 cm were randomly distributed to three treatments of RAS and traditional culture systems (T1: 20% of water changed daily; T2: once‐through system 250 L/h; T3: RAS—20% of water changed weekly) in nine concrete tanks of 4000 L at stocking density of 100 fish/tank and each treatment had three replicates.每天两次喂食鱼（33.1％粗蛋白，3毫米颗粒），速度为3％，持续12周。这些发现表明，与其他培养系统相比，T3紧随其后的T2导致了生长绩效的显着改善。在T3中观察到体重增加，长度增长，比例增长率，平均每日增益和存活％的显着升高。RBC在T2下显示出显着降低。在RAS下，血红蛋白浓度和WBC的计数显着增加。在T2中记录了平均细胞血红蛋白和平均细胞血红蛋白浓度的显着值。在RAS下，总蛋白，白蛋白和球蛋白显着增强，而在T2和T3中观察到皮质醇的最高值。这些发现表明，RAS紧随其后的是一次直通系统可显着提高生长性能，饲料效率和生存，并增强Flathead Grey Mullet的血液学和血清生化状态。总之，RA提供了优化生理功能，生长性能和鱼类健康的理想条件。
Mohamed F. Badran (0000-0002-9855-7573) [1];Mervat A. M. Ali [2];Mohamed S. Yusuf [3];. The Growth Performance, Haematological Parameters and Serum Biochemistry of the Flathead Grey Mullet Mugil cephalus Under Recirculating Aquaculture System and Traditional Culture Systems[J]. Journal of Animal Physiology and Animal Nutrition, 2025,109(2): 449-455