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首页> 外文期刊>水産增殖 >First feeding a plant-based diet to rainbow trout Oncorhynchus mykiss fry
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First feeding a plant-based diet to rainbow trout Oncorhynchus mykiss fry

机译：首先将植物的饮食喂给彩虹鳟鱼oncorhynchus mykiss fry

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Rainbow trout swim-up fry were first fed a fishmeal-based diet (FMD) or 狂 plant-based (5% fishmeal) diet (LFMD) for 3 weeks and their growth performances and body compositions were compared. Two lines of fry were used: a control group that had not experienced low fishmeal diets in previous generations and a group that had been selected for growth with 5% fishmeal diets over 2 generations. Docosahexaenoic acid (DHA, as tuna oil) and phospholipid (soybean lecithin) as well as methionine and lysine were fortified to LFMD. Survival rates were similar between treatments at 99%. Large differences in growth were not observed between the fish lines, however, the growth of fish fed LFMD was consistently inferior to fish fed FMD. Whole body ash, calcium, phosphorus and zinc concentrations, and the proportions of eicosapentaenoic acid (EPA) and DHA in the whole body polar lipid, of fish fed LFMD were lower than those of fish fed FMD. In fish fed LFMD, whole body taurine and free histidine concentrations werealso lower while the anserine and carnosine concentrations were higher, compared to fish fed FMD. These results suggest that plant-based diets could be used as starter feeds in rainbow trout with further supplementation of certain nutrients.
机译：彩虹鳟鱼散步FRY首先喂养基于鱼粉的饮食（FMD）或基于植物（5％鱼粉）饮食（LFMD）3周，并比较它们的生长性能和身体组成。使用了两条乳油炸：对照组在前几代中没有经历过低鱼粉饮食的对照组，并在2代以2多代获得5％的鱼粉饮食中选择的群体。将Docosahexaeno的酸（DHA，作为金枪油）和磷脂（大豆卵磷脂）以及蛋氨酸和赖氨酸加强至LFMD。 99％的治疗之间的存活率相似。在鱼类线之间未观察到较大的生长差异，然而，饲喂LFMD的鱼类的生长始终不如喂养FMD的鱼类。全身灰，钙，磷和锌浓度，以及全身极性脂质中的eicosapentaeno酸（EPA）和DHA的比例低于FMD的鱼类饲喂的鱼类。在喂养喂养LFMD的鱼类中，全身牛磺酸和自由组氨酸浓度Werealso在喂养FMD的鱼类相比较高时较高。这些结果表明，植物的饮食可以用作虹鳟鱼的起动器饲料，进一步补充某些营养素。

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