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天津地区池塘盐碱化严重,池水盐度2～15以上,养殖用水多为生活污水,pH值、氨氮严重超标,水质不易调节,加上近2年养殖户盲目加大养殖密度,养殖管理体系跟不上,以及南美白对虾种质退化,致使南美白对虾养殖发生严重病害。2004年有的养殖户几乎绝收,造成惨重的经济损失,严重挫伤了虾农的养殖积极性。针对这一不利局面,天津市津南区双桥河镇海河湾水产养殖基地总结了5年来的养殖经验,总结出一套切实可行的南美白对虾成功养殖模式,供广大养殖户参考。
Salinization of ponds in Tianjin is serious, the salinity of water ponds is more than 2 ~ 15, the domestic sewage is mostly domestic sewage, the pH value and ammonia nitrogen exceed the standard seriously, the water quality is not easy to be regulated, and the farmers blindly increase the breeding density in the past 2 years, Can not keep up, and the degradation of P. vannamei germplasm, resulting in serious diseases of P. vannamei culture. In 2004, some farmers almost never received, causing heavy economic losses, seriously dampening the shrimp farming enthusiasm. In response to this unfavorable situation, Shuangqiaohe Zhenhai Bay Aquaculture Base in Jinnan District of Tianjin summarized five years of experience in farming and concluded a set of practical breeding patterns of P. vannamei, for the majority of farmers.