Kasamechotchung Chanadda, Munkongwongsiri Natthinee, Plaipetch Pichet, Lertsiri Kanokwan, Thitamadee Siripong, Vanichviriyakit Rapeepun, Khidprasert Siriwan, Sritunyalucksana Kallaya, Façanha Felipe Nobre, Kruangkum Thanapong
Department of Fisheries, Faculty of Agriculture and Natural Resources, Rajamangala University of Technology Tawan-Ok, Si Racha, Chonburi, 20110, Thailand.
National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Knlong Luang, Prathum Thani, 12120, Thailand.
Sci Rep. 2025 Jan 2;15(1):451. doi: 10.1038/s41598-024-83494-1.
This study evaluated the growth and gut performance of shrimp fed three isonitrogenous diets (37% crude protein) with varying inclusions of fish meal (FM) and soybean meal (SBM): F1 (27.5% FM), F2 (10% FM + 23.5% SBM), and F3 (38% SBM). Over a 28-day period, feed intake, feed conversion ratio (FCR), and survival rates showed no significant differences among the groups. However, shrimp fed F2 and F3 exhibited significantly higher weight gain and average daily growth (ADG) compared to those fed F1 (P < 0.05). Gut performance analysis revealed that F3 consistently had the highest gut passage time (GPT), while F1 had the lowest. By day 28, shrimp fed F2 displayed elevated gut retention time (GRT). F1-fed shrimp showed a high gut passage rate (GPR), whereas F3-fed shrimp had a low GPR until day 21, with differences becoming negligible by day 28. Histological examination of the hepatopancreas revealed an increased R-cell population in shrimp fed F3. These findings highlight the adaptability of shrimp to different dietary compositions and underscore the importance of considering multiple factors when assessing the impacts of feed on growth and physiology.
本研究评估了投喂三种等氮日粮（粗蛋白含量37%）的凡纳滨对虾的生长和肠道性能，这三种日粮中鱼粉（FM）和豆粕（SBM）的添加量不同：F1（27.5%鱼粉）、F2（10%鱼粉 + 23.5%豆粕）和F3（38%豆粕）。在28天的试验期内，各组的摄食量、饲料转化率（FCR）和存活率均无显著差异。然而，与投喂F1日粮的对虾相比，投喂F2和F3日粮的对虾表现出显著更高的体重增加和日均生长率（ADG）（P < 0.05）。肠道性能分析表明，F3组的肠道通过时间（GPT）始终最高，而F1组最低。到第28天，投喂F2日粮的对虾肠道保留时间（GRT）升高。投喂F1日粮的对虾肠道通过率（GPR）较高，而投喂F3日粮的对虾在第21天前GPR较低，到第28天差异可忽略不计。肝胰腺组织学检查显示，投喂F3日粮的对虾R细胞数量增加。这些发现凸显了对虾对不同日粮组成的适应性，并强调在评估饲料对生长和生理的影响时考虑多个因素的重要性。
