奥尼鱼是奥利亚罗非鱼与尼罗罗非鱼杂交而获得的优良品种,属热带鱼类,在我国大多地区不能自然越冬,必须进行越冬保种。奥尼鱼的越冬分为鱼种越冬和亲本越冬两种。鱼种越冬是将当年繁殖的奥尼鱼苗,到10月份左右还未长成商品规格的,通过越冬,留作第二年4～5月份作为放养的鱼种;亲 Oryza is Oriole tilapia and Nile tilapia hybrids obtained excellent varieties, is a tropical fish, in most areas of our country can not overwinter, we must overwinter conservation. The overwintering of the Ohni fish is divided into two species of winter and the parental wintering. Overwintering fish species that year will be breeding Ornithogalum seedlings, to October or so have not yet reached the product specifications, through the winter, for the second year from April to May as stocking species;