| 摘要: |
| 通过56d喂食添加带鱼酶解蛋白亚铁螯合物（Fe（Ⅱ）-FPH）的饲料观察凡纳滨对虾（Litopenaeus vannamei）的生长性能、免疫相关指标及品质的变化。Fe（Ⅱ）-FPH在饲料中的添加量分别为0、500、1000、1500、2000、2500mg/kg，不同饲料组分别设4个重复，每个重复40尾对虾。结果显示，当Fe（Ⅱ）-FPH在饲料中的添加量在1500-2500mg/kg时，凡纳滨对虾的成活率、增重率、特定生长率显著提高（P<0.05）；当Fe（Ⅱ）-FPH在饲料中的添加量为2000-2500mg/kg时，对虾血清碱性磷酸酶（AKP）、溶菌酶（LZM）的活性均维持在一个较高的水平，且显著高于对照组（P<0.05）；高浓度（≥2000mg/kg）、较长时间（56d）的Fe（Ⅱ）-FPH饲喂，对虾肌肉组织弹性增强，硬度加大，水产品品质增强。结果表明，饲料中添加适量的Fe（Ⅱ）-FPH对凡纳滨对虾生长有一定的促进作用，Fe（Ⅱ）-FPH可以提高对虾的免疫相关指标，并能提高水产品品质。 |
| 关键词: 带鱼蛋白亚铁螯合物 凡纳滨对虾 生长特性 非特异性免疫 质构特性 |
| DOI：10.11693/hyhz20160700161 |
| 分类号: |
| 基金项目:国家自然科学基金项目，31301597号，31471609号；海洋公益性行业科研专项经费资助，201305013号。 |
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| EFFECTS OF HAIRTAIL PROTEIN FERROUS CHELATING PEPTIDE FEED ON GROWTH, IMMUNE PERFORMANCE, AND QUALITY CHARACTERISTICS OF LITOPENAEUS VANNAMEI |
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LIANG Ying-Fang, LIN Hui-Min, SHI Yun-Jie, DENG Shang-Gui
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Zhejiang Provincial Key Laboratory of Health Risk Factors for Seafood, College of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
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| Abstract: |
| A 56-d experiment was conducted to study the impact of dietary addition of Fe (Ⅱ)-FPH (hairtail protein ferrous chelating peptide) on shrimp (Litopenaeus vannamei) growth performance,nonspecific immunity,and quality characteristics.Fe (Ⅱ)-FPH was added into feed in amounts of 0,500,1000,1500,2000,2500mg/kg.The results showed that at dosage 1500-2500mg/kg,Fe (Ⅱ)-FPH could significantly increase shrimp survival rate,weight gain,and specific growth rate (P<0.05);at dosage 2000-2500mg/kg,the serum alkaline phosphatase AKP,LZM lysozyme activity were significantly enhanced (P<0.05);and at a high concentration (≥2000mg/kg) for a longer time (56d),the shrimp muscle tissue elasticity,hardness,and sensible quality of the aquatic products were improved.Therefore,an appropriate amount of dietary Fe (Ⅱ)-FPH addition would have positive impacts on L.vannamei farming and its seafood quality. |
| Key words: hairtail protein ferrous chelating peptide Litopenaeus vannamei growth performance nonspecific immunity quality characteristics |
