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网箱养蟹是近年来兴起的一种河蟹养殖新方法,具有放养密度大,生长快,河蟹上市规格大,发病率低,管理、捕捞方便等优点。1.养殖水域的选择①避风向阳,风浪小,远离航道,无污染的水域。②水质清新,溶氧高,平均水深2米以上,水位落差在1米之内的水域。③水面开阔,天然饵料丰富,无水老
Cage Crab breeding is a new method of crab farming that has emerged in recent years. It has the advantages of large stocking density, fast growth, large crab market size, low incidence, management and easy fishing. 1. Selection of breeding waters ① sheltered sunny, storms, away from the fairways, pollution-free waters. ② fresh water, dissolved oxygen high, the average depth of 2 meters above the water level drop within 1 meter of the waters. ③ open water, natural food rich, dry water