延迟投饵2天以上使云斑尖塘鳢仔鱼的存活率显著下降。
The larvae livability obviously decreased due to delayed feeding for more than 2 days.
结论 双氯敌鼠铵对褐家鼠适口性好,在特殊环境中一次投饵的药效较为理想。
Conclusion The dichlorophacinon ammonium had the high toxicity and good palatability to R. norvegicus, which had good control efficacy in the special environment.
投饵保持八分饱,平时仔细观察鱼的情况,及时采取应对措施。注意不要让饲养水变质。
Feeding only to keep eight full, carefully observing the fish situation, and taking response measures at time. Be careful not to keep the water deterioration.
海水养殖应当科学确定养殖密度,并应当合理投饵、施肥,正确使用药物,防止造成海洋环境的污染。
In Marine culture, breeding density shall be scientifically determined, bait and manure be rationally spread, medicines be accurately applied, and pollution to the Marine environment be prevented.
同时在不同盐度条件下对初孵的奥尼罗非鱼仔鱼进行耐饥饿试验,测定其不投饵存活系数(SAI)。
The effects of seawater salinity on hatching rate and survival activity index (SAI) of Epinephelus akaara were studied in the laboratory.
方法室内采用粉迹法调查鼠密度,室外采用夹夜法调查鼠密度;投饵方式为一次性饱和投放溴敌隆毒饵。
Methods indoor and outdoor rodent density was investigated both indoor using powder tracking and night-trap Methods after saturated deployment of bromadiolone baits.
当日投饵宁大于饱喂组的80%或隔天投喂足量饵料,则可基本满足蟹的摄食需求,对其群体的成活率没有明显的影响;
The nutrient requirements by the crabs might be provided basically and the survival rate did not decrease obviously when they were fed every other day or more than 80% satiation.
实验比较了5个盐度梯度(28、22、16、10、4)下褐菖鲉仔鱼在饥饿条件下的存活状况并测定其不投饵存活系数SAI。
The effects of salinity on survival activity index(SAI) of the larvae of Sebastiscus marmoratus were studied in the laboratory. 5 different levels of salinity were set as follows:28,22,16,10,4.
实验比较了5个盐度梯度(28、22、16、10、4)下褐菖鲉仔鱼在饥饿条件下的存活状况并测定其不投饵存活系数SAI。
The effects of salinity on survival activity index(SAI) of the larvae of Sebastiscus marmoratus were studied in the laboratory. 5 different levels of salinity were set as follows:28,22,16,10,4.
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