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10-15% of aquatic plants and hidden objects are planted shallowly at the edge of the pond to create an environment for lobsters to inhabit and shell and reduce mutual killing. The influence of water quality on lobster yield cannot be ignored. During the breeding process, the PH value of the pool water is kept between 7.5 and 8.5, and the transparency is 30-40cm. Fresh water should be added frequently, quicklime solution should be splashed regularly, water quality should be adjusted, and diseases and shelling failure should be prevented. 2. Feed feed reasonably. Lobsters will kill each other when hungry and under-fed, so the feeding amount must be sufficient. Lobster feed is animal and plant feed. Plant feeds are wheat, aquatic plants, rapeseed cakes, etc. Animal feeds are miscellaneous fish, miscellaneous meat, livestock viscera, etc. At ordinary times, the feeding time, feeding amount and feeding method are determined according to the habit of lobsters falling in the day and coming out at night and the density of lobsters in the pond. 3. Scientific fishing. Young shrimps can grow to commercial specifications in 60-90 days under the condition of suitable temperature and sufficient feed. The seedlings will be released in March and will be caught in rotation around June, selling large ones and keeping small ones.　　春桃的未婚夫大龙在西口外遭遇土匪——而生死不明，婆婆四姑气血攻心而亡。临终交待要把大龙找回来。春桃决意与小叔子二虎一起过河找回大龙，正当他们要动身的时候，春桃的继父——票号吕掌柜的独子秃驴企图强暴春桃，春桃失手将其杀死！吕掌柜丧子，誓要将春桃沉河。Public interface Targetable {秦淼听了十分喜悦，秦瀚兄弟也高兴极了。《芝加哥警察局》演绎情报科打击贩毒和侦破案件之余，将主要成员在警局内外所面临的种种向我们娓娓道来，在新一季中继续深入展现这些蓝衣卫士的一线生活。In many fields, the road to excellence is not the result of accurate calculation of time, but vague and ambiguous. No simple model leads to greatness.