This study investigated the production performance, household fish consumption, and commercial feasibility of prawn–carp–mola mixed gher farming system. Three treatments with different species compositions were compared: prawn + rohu, prawn + mola, and prawn + rohu + mola, each having different stocking densities. The results indicated that the integration of mola improved the utilization of feed protein by prawns. However, mola inclusion did not significantly affect the growth of prawn and rohu or the production system's cost. Mola inclusion led to a significant increase in the gross production, household consumption, and sale of mola, prawn, and rohu. It also increased gross returns, income above variable cost, and net returns to land, family labor, and management. In addition, the inclusion of mola significantly increased household consumption by increasing the intake of nutrient‐rich mola and overall fish consumption. This improvement in food consumption contributed to ensuring the nutritional requirements and food security of impoverished rural farmers, especially women and children. Consequently, the integration of small fish mola in prawn–carp gher farming systems is recommended as a beneficial practice for wider adoption, effectively addressing household nutrition security at the rural level and improving the livelihoods of farmers.

中文翻译：

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翻车鱼与虾鲤鱼养殖相结合的影响：提高家庭鱼类消费和家庭收入的方法

本研究调查了虾-鲤鱼-翻车鱼混合养殖系统的生产绩效、家庭鱼类消费和商业可行性。比较了不同物种组成的三种处理：对虾+南亚野鲮、对虾+翻车鱼和对虾+南亚野鲮+翻车鱼，每种处理都有不同的放养密度。结果表明，mola的整合提高了对虾对饲料蛋白质的利用率。然而，翻车鱼内含物并没有显着影响对虾和南亚野鲮的生长或生产系统的成本。翻车鱼的加入导致翻车鱼、对虾和南亚野鲮的总产量、家庭消费和销售量显着增加。它还增加了总回报、高于可变成本的收入以及土地、家庭劳动力和管理的净回报。此外，通过增加营养丰富的翻车鱼的摄入量和总体鱼类消费量，翻车鱼的加入显着增加了家庭消费。粮食消费的改善有助于确保贫困农村农民，特别是妇女和儿童的营养需求和粮食安全。因此，建议将小鱼翻车鱼纳入虾鲤鱼养殖系统中，作为更广泛采用的有益做法，有效解决农村一级的家庭营养安全问题并改善农民的生计。