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首页> 外文期刊>Journal of Aquatic Sciences >POTENTIAL OF BLOODY COCKLE (Anadara senilis) SHELLS AS ALTERNATIVE BUFFER TO CALCIUM CARBONATE FOR AQUACULTURE IN THE NIGERDELTA, NIGERIA
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POTENTIAL OF BLOODY COCKLE (Anadara senilis) SHELLS AS ALTERNATIVE BUFFER TO CALCIUM CARBONATE FOR AQUACULTURE IN THE NIGERDELTA, NIGERIA

机译：尼日利亚尼日尔达州水产养殖用大蛤壳（Anadara senilis）作为碳酸钙替代缓冲液的潜力

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摘要

A study was carried out to assess buffering efficiency of bloody cockle shells (Anadara senilis) on acidic borehole water for fish farming. Eighteen (18), 100-litre shaded plastic tanks (3/4- filled, pH 4.0) of three replicates per treatment of 270 gbuffer agent were used. There were four trials of six treatments (T) namely control (C) [Tl], calcium carbonate (CA) [T2], crushed burnt bloody cockle shells (CBBS) [T3], uncrushed burnt bloody cockle shells (UBBS) [T4], crushed unbumt bloody cockle shells (CUBS) [T5] and uncrushed unburnt bloody cockle shells (UUBS) [T6]. Temperature and pH were monitored morning, afternoon and night while dissolved oxygen, calcium and alkalinity were measured once for the duration of study using standard methods. Datawere subjected to analysis of variance and descriptive statistics using Microsoft Excel. pH progressively increased from 4.0 to the acceptable range of 6.5-9.0 in all treatments except Tl at the end of study. All shell types performed well as bufferingagent. However, crushed burnt bloody cockle shells are preferable to others in terms of food safety. Dissolved oxygen calcium and alkalinity values were within acceptable standard. The study recommends at least 270 g of the different shell types as organic buffer for fish production.
机译：进行了一项研究，以评估带血鸟蛤壳（Anadara senilis）在酸性钻孔水上的养鱼缓冲效率。每次处理270 g缓冲液时，使用十八（18）个100升阴影的塑料罐（3/4填充，pH 4.0），一式三份。有六个试验（T）的四个试验，即对照（C）[T1]，碳酸钙（CA）[T2]，压碎的烧血蛤cock壳（CBBS）[T3]，未压碎的烧血蛤le壳（UBBS）[T4 ]，压碎的未燃烧的血蛤壳（CUBS）[T5]和未压碎的未燃烧的血蛤壳（UUBS）[T6]。在早晨，下午和晚上对温度和pH值进行监测，同时在研究期间使用标准方法对溶解氧，钙和碱度进行一次测量。使用Microsoft Excel对数据进行方差分析和描述性统计。在研究结束时，除T1外，所有处理中的pH均从4.0逐渐增加至6.5-9.0的可接受范围。所有的壳类型都可以作为缓冲剂。然而，就食品安全而言，压碎的燃烧的血蛤壳比其他壳更可取。溶解氧钙和碱度值在可接受的标准范围内。研究建议至少使用270克不同类型的贝壳作为鱼类生产的有机缓冲液。

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