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首页> 外文期刊>North American Journal of Aquaculture >Development of a practical soy-based diet for white seabass.
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Development of a practical soy-based diet for white seabass.

机译：开发用于白鲈鱼的实用的大豆为主的饮食。

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Two feeding trials were conducted to begin development of a practical soy-based diet for white seabass Atractoscion nobilis. The first trial was designed to provide initial data on the efficacy of practical soy-based diets. Three diets and a commercial reference diet were evaluated. Research diets were 42% protein and 12% lipid, with varying protein sources: fish meal (FM), FM plus solvent-extracted soybean meal (SBM), or FM plus soy protein concentrate (SPC). Final weight (14.1-17.2 g), percent weight gain (307.2-401.8%), and feed conversion ratio (FCR; 1.0-1.2) followed similar trends, with fish offered the FM-based diet significantly outperforming the other dietary treatment groups. There was no significant difference between soy-based diets and the commercial reference diet, and no significant differences in survival due to dietary treatments were observed. The second trial was designed to evaluate varying levels of FM replacement with SPC in a series of four diets containing 42% protein and 12% lipid. The basal diet contained 40% FM and 24.6% SBM as primary protein sources. The FM was then reduced to 30, 20, and 15% of the diet using SPC as the replacement protein. Final weight (27.1-36.5 g), percent weight gain (69.0-116.6%), and FCR (1.5-2.4) followed similar trends, with performance decreasing as FM level was reduced. In general, each incremental reduction in FM resulted in significant reductions in final weight and percent weight gain and significant increases in FCR. Results from these initial trials on white seabass are encouraging because the poor response was most likely due to a nutrient imbalance or palatability problem, which can be corrected, as opposed to an allergic response. Given that the open formulations performed similarly to the commercial feed, these simple formulations can be used as a starting point for the development of practical diets for white seabass.
机译：进行了两项喂养试验，以开始开发一种实用的大豆饲料，用于白鲈鱼（i）白术。第一个试验旨在提供有关实际大豆饮食的功效的初步数据。评价了三种饮食和商业参考饮食。研究饮食的蛋白质含量为42％，脂质含量为12％，蛋白质来源多种多样：鱼粉（FM），FM加溶剂萃取大豆粉（SBM）或FM加大豆浓缩蛋白（SPC）。最终重量（14.1-17.2 g），增重百分比（307.2-401.8％）和饲料转化率（FCR; 1.0-1.2）遵循相似的趋势，鱼类提供的基于FM的饮食明显优于其他饮食治疗组。基于大豆的饮食与商业参考饮食之间没有显着差异，也没有观察到由于饮食治疗而导致的存活率显着差异。第二项试验旨在评估在含有42％蛋白质和12％脂质的四种饮食中，用SPC替代FM的不同水平。基础饮食包含40％FM和24.6％SBM作为主要蛋白质来源。然后，使用SPC作为替代蛋白，将FM减少到饮食的30％，20％和15％。最终重量（27.1-36.5 g），增重百分比（69.0-116.6％）和FCR（1.5-2.4）遵循相似的趋势，但随着FM含量降低，性能下降。通常，FM的每次增量减少都会导致最终体重和体重增加百分比显着减少，而FCR则显着增加。这些在白鲈鱼上的初步试验结果令人鼓舞，因为较差的反应很可能是由于营养不平衡或适口性问题引起的，与过敏反应相反，这种问题可以纠正。考虑到开放配方的性能与商业饲料相似，这些简单配方可以用作开发白鲈鱼实用饲料的起点。

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