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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Evaluation of Soy Protein Concentrate as Replacement of Fish Meal in Practical Diets for Juvenile Tench (Tinca tinca L.)
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Evaluation of Soy Protein Concentrate as Replacement of Fish Meal in Practical Diets for Juvenile Tench (Tinca tinca L.)

机译：大豆浓缩蛋白替代鱼粉替代青少年膳食的实践研究（Tinca tinca L.）

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摘要

The aim of this study was to evaluate different replacement levels of fish meal (FM) by soy protein concentrate (SPC) on survival, growth performance and body composition of juvenile tench (Tinca tinca). A 90-day experiment was conducted with 5 month-old juveniles (31.95 mm total length, 0.396 g weight). Eight practical diets (50% crude protein) differing in the level of replacement of FM protein by SPC protein were tested: 0% (control diet), 25%, 35%, 45%, 55%, 65%, 75% or 100% corresponding to 0, 159, 222, 285, 348, 412, 475 or 634 g SPC kg(-1) diet, respectively. Survival rate was 100% for all diets. Significant differences were not found (P>0.05) in growth values among 25%, 35% or 45% replacement diets and the control diet. At higher replacement levels (from 55% to 100%), fish had significantly lower growth (P<0.05). Fish fed from 0% to 45% replacement diets had significantly lower (P<0.05) feed conversion ratio and higher (P<0.05) protein productive value than those fed diets with higher replacement levels. The percentages of fish with externally visible deformities ranged from 1.1% to 4.4%. The relation among amino acid profiles of the diets, body composition, growth performance of juveniles and amino acid requirements of other fish species are discussed. Up to 285 g SPC kg(-1) diet can be included in diets for juvenile tench without impairing growth performance.
机译：这项研究的目的是评估鱼粉（SPC）对鱼粉（FM）的不同替代水平对少年鲈（Tinca tinca）的存活，生长性能和身体组成的影响。对5个月大的少年（全长31.95毫米，体重0.396克）进行了90天的实验。测试了八种实际饮食（50％的粗蛋白），它们在SPC蛋白替代FM蛋白的水平上有所不同：0％（对照饮食），25％，35％，45％，55％，65％，75％或100 ％分别对应于0、159、222、285、348、412、475或634 g SPC kg（-1）饮食。所有饮食的成活率为100％。在25％，35％或45％的替代饮食和对照饮食之间，未发现生长值有显着差异（P> 0.05）。在较高的替代水平下（从55％到100％），鱼的生长明显降低（P <0.05）。饲喂0％至45％替代饲料的鱼比饲喂替代水平更高的饲料的饲料转化率低（P <0.05），蛋白质生产价值更高（P <0.05）。具有外部可见畸形的鱼的百分比范围为1.1％至4.4％。讨论了日粮的氨基酸谱，体成分，幼鱼的生长性能和其他鱼类的氨基酸需求之间的关系。在不损害生长性能的情况下，幼鱼日粮中最多可包含285 g SPC kg（-1）日粮。

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