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| 不同饵料对条纹锯鮨幼鱼生长与肌肉营养成分的影响 |
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吴雷明1,2, 陈超1,2, 王鲁1, 贾瑞锦1,2, 赵从明3, 宋振鑫1,2, 李炎璐1,2, 曲江波4, 孙涛4
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1.农业部海洋渔业可持续发展重点实验室 中国水产科学研究院黄海水产研究所，青岛 266071;2.上海海洋大学水产与生命学院，上海 201306;3.天津立达海水资源开发有限公司，天津 300280;4.烟台开发区天源水产有限公司， 烟台 264006
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| 摘要: |
| 采用颗粒饲料(A组)、颗粒饲料与鲜饵料(B组)、纯鲜饵料(C组)对三组条纹锯鮨Centropristis striata Linnaeus生长性能及营养成分进行观察和分析比较。结果显示，颗粒饲料营养物质含量(除少数脂肪酸外)远大于鲜饵料，营养价值较高，在饵料的利用率以及鱼体的生长发育方面拥有一定优势。颗粒饲料中蛋白质含量为45.4%，是鲜饵料的3.66倍，相对于鲜饵料而言，颗粒饲料提供了充足的蛋白质。A组条纹锯鮨幼鱼蛋白质含量(20.3%)高于其他两组，C组含量最低，三组生长效率由高到低为A组>B组>C组。A、B、C三组必需氨基酸指数分别为54.93、66.40、61.02，B组的必需氨基酸指数最高，营养价值更丰富。C组多不饱和脂肪酸（PUFA）含量最高，分别高出A、B两组5.94%、7.84%，其中，二十碳五烯酸（EPA）与二十二碳六烯酸（DHA）含量分别比A、B两组高13.26%、9.61%。实验中共检测出5种鲜味氨基酸：谷氨酸、天冬氨酸、甘氨酸、精氨酸和丙氨酸，除精氨酸外，其余4种为非必需氨基酸（NEAA）。C组鲜味氨基酸含量为5.9%，占总氨基酸的42.66%，高出A组8.8%、B组10%。以整体生长效果与营养物质组成作为标准评价实验效果：C组>A组>B组。 |
| 关键词: 条纹锯鮨 饵料 生长性能 营养分析 |
| DOI：10.11758/yykxjz.20140207 |
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| 基金项目:科技部国际合作项目（2012DFA30360）和天津市滨海新区项目（201004070） |
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| Comparison of growth performance and nutritional components in muscles of Centropristis striata juveniles fed with different diets |
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| Abstract: |
| This research compared growth performance and nutritional components in the muscles of Centropristis striata juveniles feeding on artificial diet only (Group A), artificial diet mixed with fresh fish (Group B), and fresh fish only (Group C) respectively. The results showed that the contents of nutrition in the artificial diet were much higher than those in the fresh diet, and the artificial diet had a certain advantage in terms of diet utilization, fish growth and development. The protein content in the artificial diet was 45.4%, which was 3.66 times of the fresh diet. Relative to the fresh diet, artificial diet provided adequate protein nutrition. The protein content in muscles of C.striata of Group A (20.3%) was higher than that of other two groups, and Group C was the lowest. The essential amino acid index (EAAI) of the three groups was 54.93（Group A）, 66.40（Group B）, and 61.02（Group C）. The content of PUFA in Group C was higher than Group A（5.94% higher） and Group B（7.84% higher）. The content of EPA and DHA in Group C were higher than Group A（13.26% higher）and Group B（9.61% higher）. The five delicious amino acids were detected, including Glu, Asp, Gly, Ala and Arg. The content of five delicious amino acids in Group C was 5.9%, and the ratio of total delicious amino acids in total amino acids ( DAA/TAA) was 42.66%, which was higher than Group A（8.8% higher） and Group B（10% higher）. In terms of the growth effect and nutrient, Group C is better than Group A and Group B. This research result will provide a reference for nutritional properties, feed development and feeding strategy. |
| Key words: Centropristis striata Linnaeus Diet Growth performance Nutritional analysis |