Wu Shengjun, Xu Bing
Co-Innovation Center of Jiangsu Marine Bio-Industry Technology, Jiangsu Ocean University, 59 Cangwu Road, Haizhou, 222005 China.
School of Food Science and Engineering, Jiangsu Ocean University, 59 Cangwu Road, Haizhou, 222005 China.
3 Biotech. 2021 Mar;11(3):151. doi: 10.1007/s13205-021-02700-3. Epub 2021 Mar 2.
The present study aims to explore the effects of oral astaxanthin administration on the growth performance and innate immunity of juvenile crucian carp () Juvenile crucian carps with a bodyweight of 40.06 ± 2.17 g were randomly assigned to four groups, i.e., one control group fed with a basic diet and three treatment groups fed with a diet that contains 200, 400 and 800 mg/kg astaxanthin. After 60 days of feeding, the groups fed with astaxanthin-containing diets had improved body weight gain rate; feed conversion ratio; intestinal digestive protease, lipase and amylase levels; serum superoxide dismutase, catalase, acid phosphatase, alkaline phosphatase and lysozyme activities; complement 3 and complement 4 levels; interleukin (IL)-10 and resistance to and reduced serum aspartate aminotransferase and alanine aminotransferase activities and tumour necrosis factor-α, IL-1β and IL-8 levels compared with those of the control group. Based on the efficiency of the oral administration of astaxanthin on the growth performance of juvenile crucian carps, the optimum dose of astaxanthin was 400 mg/kg. Results indicated that astaxanthin may be used as a dietary supplement for the crucian carp.
本研究旨在探讨口服虾青素对鲫鱼幼鱼生长性能和先天免疫的影响。将体重为40.06±2.17 g的鲫鱼幼鱼随机分为四组，即一组投喂基础饲料的对照组和三组分别投喂含200、400和800 mg/kg虾青素饲料的处理组。投喂60天后，与对照组相比，投喂含虾青素饲料的各组幼鱼的体重增加率、饲料转化率、肠道消化蛋白酶、脂肪酶和淀粉酶水平、血清超氧化物歧化酶、过氧化氢酶、酸性磷酸酶、碱性磷酸酶和溶菌酶活性、补体3和补体4水平、白细胞介素（IL）-10以及对[具体病菌名称缺失]的抵抗力均有所提高，血清天冬氨酸转氨酶和丙氨酸转氨酶活性以及肿瘤坏死因子-α、IL-1β和IL-8水平降低。基于口服虾青素对鲫鱼幼鱼生长性能的影响效率，虾青素的最佳剂量为400 mg/kg。结果表明，虾青素可用作鲫鱼的饲料添加剂。
