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首页> 外文期刊>Fish & Shellfish Immunology >Effects of dietary pyridoxine on immune responses in abalone, Haliotis discus hannai Ino.
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Effects of dietary pyridoxine on immune responses in abalone, Haliotis discus hannai Ino.

机译：日粮吡ido醇对鲍鱼（Haliotis discus hannai Ino）鲍鱼免疫反应的影响。

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A feeding experiment was conducted to investigate the effects of dietary pyridoxine (PN) on the immune responses of abalone, Haliotis discus hannai Ino. Purified diets supplemented with 0, 40, 800 mg PN kg-1 or 80 mg kg-1 of 4-deoxypyridoxine (PN antagonist) were fed to adult abalone (initial weight 45.77+or-0.25 g; initial shell length 68.02+or-0.78 mm) for 90 days. The air-dried brown kelp, Laminaria japonica, was used as a control diet. Each diet was fed to three replicate groups of abalone in a recirculation system using a completely randomised design. The results showed that weight gain ratio (WGR) of the abalone generally increased with the level of dietary PN supplementation though no significant differences were found among the treatments (P>0.05). Phagocytic and phenoloxidase activities were significantly higher in abalone fed diets supplemented with 800 mg PN kg-1 than those fed the PN-free diet or the one with 4-deoxypyridoxine (P<0.05). Agglutination titre and respiratory burst activity were significantly higher in abalone fed diets supplemented with 40 mg PN kg-1 than those fed the PN-free diet or the one with 4-deoxypyridoxine (P<0.05). There were no significant differences in immunological characteristics between the abalone fed the diet containing 40 mg PN kg-1 and those fed the diet containing 800 mg PN kg-1 (P>0.05). L. japonica resulted in significantly lower agglutination titre, respiratory burst and phagocytic activities than the artificial diets supplemented with 40 or 800 mg PN kg-1 (P<0.05). Total haemocyte count (THC), serum protein concentration, and the activities of lysozyme and acid phosphatase were not significantly affected by the dietary treatments (P>0.05). These results demonstrate that dietary deficiency of pyridoxine suppresses the immune functions in H. discus hannai, and further investigations are needed to optimise the dietary level of this vitamin for maintaining the best immune responses in abalone.
机译：进行了喂养实验，以研究饮食吡pyr醇（PN）对鲍鱼Halotis discus hannai Ino免疫反应的影响。将补充有0、40、800 mg PN kg-1或80 mg kg-1的4-脱氧吡啶酮（PN拮抗剂）的纯化饲料饲喂成年鲍鱼（初始体重45.77 + or-0.25 g;初始壳长68.02 + or- 0.78毫米），持续90天。风干的棕色海带Laminaria japonica被用作对照饮食。使用完全随机的设计，在循环系统中将每种饮食喂入三个重复的鲍鱼组。结果表明，鲍鱼的体重增加率（WGR）通常随日粮PN含量的增加而增加，尽管各处理之间无显着差异（P> 0.05）。补充800 mg PN kg-1的鲍鱼日粮中的吞噬和酚氧化酶活性显着高于不含PN的日粮或含4-脱氧吡啶酮的日粮（P <0.05）。补充40 mg PN kg-1的鲍鱼日粮的凝集滴度和呼吸爆发活性显着高于不含PN的日粮或添加4-脱氧吡啶酮的日粮（P <0.05）。饲喂含40 mg PN kg-1的日粮的鲍鱼与饲喂含800 mg PN kg-1的日粮的鲍鱼的免疫学特性之间无显着差异（P> 0.05）。与补充了40或800 mg PN kg-1的人工饮食相比，L。japonica导致的凝集滴度，呼吸爆发和吞噬活动明显降低（P <0.05）。饮食处理对总血细胞计数（THC），血清蛋白浓度以及溶菌酶和酸性磷酸酶活性没有显着影响（P> 0.05）。这些结果表明，饮食中的吡ine醇缺乏会抑制汉氏梭菌的免疫功能，需要进一步研究以优化这种维生素的饮食水平，以保持鲍鱼的最佳免疫反应。

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