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The results showed that: the influence of the aquaculture process on aquaculture water determined by type of aquaculture; the influence of aquaculture process on the water temperature, salinity and pH value were not wide.the descent of pH value was related to feed coefficients ; the dissolve oxygen of water in outfall was lower than the water in infall,but the concentration still maintained at the saturation level, is mainly affected by density of aquaculture ,rate of feed and artificial measures of increasing oxygen ;the major form of inorganic nitrogen was nitrate-N;the concentration of inorganic nitrogen and the organic matter tended to increase ,but the ammonium to decline ,this was relation with density of aquaculture ,rate of feed and variation of the different inorganic nitrogen form ; concentration of phosphate-P was low in outfall of pond , related with phosphate-P precipitating, as flowing water speed slowly in outfall;This phenomenon that the total number of bacteria and coli form group of water in outfall was lower than the water in infall , this caused by measures of sterilization and disinfection .

结果表明:养殖过程对水体影响与养殖类型有关。养殖过程对水体的水温、盐度和pH影响不大; pH下降与饲料系数高有关;溶解氧含量排水口比进水口低,但仍维持在饱和状态,与养殖密度、投饵率和人工增氧有关。硝酸氮是无机氮的主要存在形式,无机氮和有机物含量有升高趋势,氨氮有下降的趋势,与养殖密度,投饵率和各种无机氮之间的相互转换有关。活性磷酸盐含量在排水口含量下降,与排水口流水速度慢,磷酸盐沉淀有关。生物指标细菌总数和大肠杆菌总数在排水口比进水口低现象普遍存在,这与养殖场杀菌消毒等措施有关。

At present Shandong saves reservoir to cast bait pot pisciculture to already formed certain scale of production.

目前山东省水库投饵网箱养鱼已形成一定生产规模。

Although cast bait pot pisciculture to develop very quickly in last few years, obtained remarkable result, but still put in a lot of problems to was not solved.

尽管投饵网箱养鱼近几年发展得很快,取得了显著的成效,但仍然存在许多问题没有解决。

The effects of salinity on the buoyancy hatching and abnormal rate of fertilized eggs of ovate pompano at 10 different salinities ranging from 5.0 to 50.0 were studied. Moreover, the survivorship as well as survival activity index of larvae of T.ovatus at 8 different salinities ranging from 10.0 to 45.0 were also observed.

观察比较了10种不同盐度(5.0~50.0)条件下卵形鲳鲹受精卵的沉浮性、孵化率和畸形率,以及8种不同盐度(10.0~45.0)下仔鱼存活情况及不投饵存活系数(survival activity index,SAI)。

In order to reach the systematic fishing production and management needed by marine ranching, the feeding system with remote monitoring was developed.

为满足海洋牧场中系统化渔业生产和管理的需要,研制一种可用于海洋牧场的远程监控投饵系统。

Take warning of this, this project intents not only to establish a complete set of indoor automatic shrimp culture system, except to establish the solid shrimp culture pond to increase the culture space, but also to establish a separate circulating water treatment system (including micro drum filter, a spire biofilter Gracilar biofilter) together with the automatic feeder, automatic water-quality monitoring and contralling unit, etc., so as to hope another spark of vitality to the shrimp cultures which is downfalling day by day.

有鉴於此,本计画拟建立一套完善的室内自动养虾系统,除将养虾池立体化以增加养殖空间外,并将独立的循环水处理系统(微粒过滤机、生物滤床、龙须菜生物过滤),配合自动投饵、水质自动监控仪器等设备,期望为日渐没落的养虾业,另辟一线生机。

Research on the symbiosis ecosystem of Lolium multiform Lam. and tilapia showed that the largest load was 2159. 66gm〓, and the best quality of fish and grass was 0.222. The ecosystem would destroy when the load was more.

通过多花黑麦草和罗非鱼的共生系统研究发现,投饵养鱼的最大负荷力为2159.66gm〓,而最佳鱼草质量比为0.222,超过了该负荷力,生态系统将会崩溃。

The feed given were immediately eaten by black bream Sparus macrocephalus schooled by acoustic behavior control, which increases the feed efficiency and deceases feed remains.

以黑鲷Sparus macrocephalus油作为试验对象,采用音响驯化技术,每天配合投饵定时放声集鱼。

It overcomes low automation and adaptability of other congeneric control systems.Through timer module to set bait supplying time,the function of automatic feeding was realized in a whole day.Through master control CPU circuit and direct current velocity modulation to control the speed of feeding electromotor,the purpose of adjusting feeding distance was realized....

通过定时模块灵活设置供饵时间,实现全天全自动投饵的功能;主控CPU电路及直流调速电路控制投饵电动机的速度,实现了调整投饵距离的目的;霍尔电路与声光报警电路保护投饵电机的安全;使自动投饵控制系统的通用性更强,可以应用到各种水产养殖业的供饵系统中。

The killing efficiency of 3000 MLD/g Type-C Botulinus neurotoxins particles and 0.1% Oats baits water were (91.14±0.17)% and (89.00±0.63)% after treatment for 6 days, respectively, and there was significant difference between two methods.

投饵后第6天3000 MLD/g C型肉毒杀鼠素饵粒处理组平均校正灭洞率为(91.14±0.17)%,0.1%的水剂处理组平均校正灭洞率为(89.00±0.63)%,二者灭效差异有统计学意义。

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然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

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