| 微胶囊饲料一些理化指标的测定与评价 |
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| 引用本文： | 梁萍,严美姣,林建斌,朱庆国,邱曼丽,IJEOMA CHRIS JUSTICE.微胶囊饲料一些理化指标的测定与评价[J].安徽农业科学,2018,46(9):85-87,90. |
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| 作者姓名： | 梁萍 严美姣 林建斌 朱庆国 邱曼丽 IJEOMA CHRIS JUSTICE |
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| 作者单位： | 福建省淡水水产研究所,福建福州,350002;福建农林大学动物科学学院,福建福州,350002 |
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| 基金项目： | 福建省海洋高新产业发展专项，福建农林大学科技创新专项，福建省科技计划项目 - 省属公益类科研院所基本科研专项 |
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| 摘 要： | 目的]研究微胶囊饲料的理化性质。方法]以大黄鱼仔稚鱼微胶囊饲料为研究对象,测定了微胶囊饲料的一些理化指标。结果]1号饲料的平均粒径为(27.77±1.18)μm,颗粒呈圆形或椭圆形,分布均匀;2号饲料的平均粒径为(34.73±1.76)μm,颗粒呈不规则形,大小分布不均匀。微胶囊饲料粒径在20~40μm;微胶囊饲料的悬浮率和溶解率均偏低。在海水中浸泡2 h后,微胶囊饲料1号浸泡液的pH为(6.800±0.056),氨氮浓度为(0.052±0.003)mg/L,亚硝酸盐浓度为(0.412±0.006)mg/L;微胶囊饲料2号浸泡液的pH为(6.683±0.031),氨氮浓度为(0.047±0.005)mg/L,亚硝酸盐浓度为(0.493±0.026)mg/L。微胶囊饲料对水体有一定的影响,浸泡液偏酸性,但对水体中氨氮和亚硝酸盐浓度的影响不大。结论]试验所用微胶囊饲料基本满足大黄鱼苗开口时期的摄食要求,但其加工工艺有待进一步完善。
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| 关 键 词： | 微胶囊饲料 大黄鱼仔稚鱼 理化指标 粒径 溶解性 |
Determination and Evaluation of Some Physical and Chemical Indices of Microcapsule Feed |
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| Abstract: | Objective] To study the physical and chemical properties of microcapsule feed. Method] Taking microcapsule feed of Pseudosci-aena crocea larvae as research object,some physical and chemical indices of microcapsule feed were determined. Result] The average parti-cle size of feed No.1 was (27.77 ± 1.18)μm,with circular or oval particles and even size. The average particle size of feed No.2 was (34.73 ± 1.76)μm,with irregular-shaped particles and uneven size. The average particle size of microcapsule feed was within 20-40 μm. The suspension rate and solubility of microcapsule feed were lower. After microcapsule feed was soaked in seawater for 2 h,soaking solution's pH of microcapsule feed No.1 was(6.800 ± 0.056),ammonia nitrogen concentration was (0.052 ± 0.003)mg/L,nitrite concentration was (0.412 ± 0.006)mg/L;soaking solution's pH of microcapsule feed No.2 was (6.683 ± 0.031),ammonia nitrogen concentration was (0.047 ± 0.005)mg/L,nitrite concentration was (0.493 ± 0.026)mg/L.Microcapsule feed had some influences on the water body, the soa-king solution was acidic,but it had small influences on the concentrations of ammonia nitrogen and nitrite in water body. Conclusion] Micro-capsule feed used in this test could basically meet the feeding requirements of P. crocea seedlings in opening period,but the processing tech-nology need to be improved. |
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