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首页> 外文期刊>World Aquaculture >Studies on the feasibility of raising Channa marulius with tilapia (Oreochromis mossambicus) by using different predator-prey stocking ratios in fertilized ponds
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Studies on the feasibility of raising Channa marulius with tilapia (Oreochromis mossambicus) by using different predator-prey stocking ratios in fertilized ponds

机译：在施肥池塘中使用不同的天敌捕食比来提高罗非鱼（Chora marulius）罗非鱼的可行性的研究

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摘要

Studies were conducted to investigate the feasibility of raising Channa marulius with Oreochromis mossambicus by using different predator-prey stocking ratios (1:10, 1:20, 1:30 and 1:40 in T1, T2, T3 and T4, respectively) in fertilized ponds. The experiments were carried out in 8 earthen ponds (40x10x1.50 m) at Bismillah Fish Farms, Ghotki (Sindh), Pakistan. All the water quality parameters (temperature, Secchi disk, pH, dissolved oxygen, alkalinity, calcium, magnesium, hardness, nitrate, phosphate and plankton dry weight) were within the accepted range as recommended for tropical aquaculture. Maximum control of tilapia overpopulation occurred when the predator:prey stocking ratio was 1:10, although the growth of C. marulius was lowest at this stocking ratio. The final mean weight of C. marulius was highest in T4, followed by T3, T2 and T1. The final mean weight of O. mossambicus was highest in T1, followed by T2, T3 and T4. The results affirmed the culture suitability of C. marulius and solved the dual problems of tilapia stunting and overpopulation in pond culture systems.
机译：进行了研究，以通过使用不同的食肉动物-猎物放养比率（1：10、1：20、1：30和1）将 Channa marulius 与 Oreochromis mossambicus 饲养的可行性进行研究。 ：在受精池塘的T1，T2，T3和T4中分别为40 ：）。实验是在巴基斯坦Ghotki（信德省）的Bismillah养鱼场的8个土池（40x10x1.50 m）中进行的。所有水质参数（温度，Secchi圆盘，pH，溶解氧，碱度，钙，镁，硬度，硝酸盐，磷酸盐和浮游生物干重）均在热带水产养殖建议的可接受范围内。当捕食者与猎物的放养比率为1:10时，最大的控制罗非鱼过剩发生了，尽管C的生长。在此放养比例下，marulius 最低。 C的最终平均重量。 marulius 在T4中最高，其次是T3，T2和T1。 O的最终平均重量。 mossambicus 在T1中最高，其次是T2，T3和T4。结果证实了 C的文化适应性。并解决了池塘养殖系统中罗非鱼发育迟缓和种群过多的双重问题。

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