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怀头鲶(Silurus soldatovi)主要分布于黑龙江和辽河水系,在鱼类学上隶属于鲶形目、鲶科、鲶属,是一种凶猛的大型肉食性经济鱼类,也是世界上生长最快的淡水鱼,最大日增重每尾鱼可达75g以上,最大个体体重达120kg以上。怀头鲶适应环境能力强,耐低溶解氧,容易饲养,起捕率高,在冰下也可摄食,当年鱼苗即可养成商品鱼,并且养殖效益高,是一种非常适合于北方地区养殖的名优品种。北京地区池塘条件优越,野杂鱼等天然饵料生物相对充足,且消费市场巨大,大规模养殖怀头鲶在促进水产养殖结构调整、丰富消费市场、提高渔民养殖效益上可发挥重要作用。近几年,北京市房山区水产技术推广站进行了池塘套养怀头鲶的试验,取得成功,并总结了一些养殖经验。
Silurus soldatovi is mainly distributed in Heilongjiang and Liaohe river systems. It belongs to the order of catfish, catfish and catfish in fish science. It is a fierce large-scale carnivorous economic fish and the fastest growing in the world Of the freshwater fish, the maximum daily gain of up to 75g per tail fish, the largest individual weighing more than 120kg. Catfish to adapt to environmental ability, low dissolved oxygen resistance, easy feeding, high capture rate, can also be eaten in the ice, then fish fry can develop commercial fish, and breeding high efficiency, is a very suitable for the northern region Breeding of the famous varieties. The ponds in Beijing are superior in terms of conditions, and natural bait organisms such as wild trash fish are relatively abundant, and the consumer market is huge. Large-scale rearing catfish can play an important role in promoting the structural adjustment of aquaculture, enriching the consumer market and raising the fisheries breeding benefits. In recent years, Fangshan District Fisheries Technology Promotion Station in Beijing conducted a test of pond catfish catfish success, and summed up some farming experience.