| ![按此在新窗口浏览图片](upload/news/n2016100713530857.jpg) ■ 华中农大水产学院副教授袁勇超
我国小龙虾产业发展势头迅猛,尤其是长江中下游各省,小龙虾已经成为淡水水产品出口创汇的主导产品。但随着小龙虾产品的供不应求,逐渐暴露出优质苗种缺乏、饲料品质无保证、成虾规格偏小,含肉率下降、养殖病害频发、养殖成本提高,“虾源”紧张、交易成本高、深加工产品市场占有率低、中介机制服务有漏洞、品牌效应不够突出等问题,威胁着小龙虾产业进一步壮大的良性发展。
目前小龙虾养殖水平区域发展不平衡,健康养殖技术普及率不高。例如湖北省内产量高的稻田综合种养单产达到250公斤/亩,低的还不到50公斤/亩,亩产效益具有明显的差异性,好的可达到4000元/亩,不好的低于1000元/亩。因此,在保证小龙虾养殖品质的前提下,以小龙虾良种选育和饵料高效利用为突破口,以小龙虾苗种繁育为核心,改善养殖环境、普及健康养殖技术、提高单产是主攻方向。
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