不同饵料、密度和池底对锯缘青蟹大眼幼体蜕皮变态的影响

实验观察了不同饵料、池底、密度对锯缘青蟹大眼幼体蜕皮变态率和残杀率的影响.实验结果表明:投喂裸腹蚤时,大眼幼体蜕皮变态率最高,3种池底大眼幼体蜕皮变态率平均为 78.1%,残杀率最低平均为 11.4%;海泥池底大眼幼体蜕皮变态率最高,投喂3种饵料的大眼幼体蜕皮变态率平均为84.8%,残杀率最低平均为7.6%;裸腹蚤是青蟹大眼幼体培育适宜的饵料,而海泥则是大眼幼体变态适宜的池底.不同培育密度对青蟹大眼幼体蜕皮变态率和残杀率的实验结果表明:当大眼幼体的培育密度为3 尾/dm3 时,其蜕皮变态率最高,而残杀率与大眼幼体培育密度的关系不明确. 【英文摘要】 Effects of different dietary,densities and substrata on metamorphosis rate and cannibalistic rate from protozoea 1 (PZ1) to postlarvae 1(PL1) stages of Scylla serrata megalopae were studied in two separate experiments.In the first experiment,three dietary:Monia mongolica,minced meat of Ruditapes philippinaram which filted through mesh and haima 0 shrimp stuff and three substrata:sea mud,sand and cement were investigated.It showed that the metamorphosis rate of megalopae was higher when it was fed Monia mong...国家海洋 863 项目“锯缘青蟹大规模人工育苗技术”(2002AA603013)资

Analysis on epidemiological charateristics of chlamydia trachomatis infection in Jiangsu Province,2006-2011

目的了解江苏省2006-2011年生殖道沙眼衣原体感染的流行病学特征,为制定防治生殖道沙眼衣原体感染的策略提供科学依据。方法收集2006-2011年江苏省通过中国疾病预防控制信息系统报告的生殖道沙眼衣原体感染病例资料,并对资料进行流行病学分析。结果 2006-2011年,江苏省生殖道沙眼衣原体感染发病率呈快速上升的趋势,2006年为0.12/10万,2011年为3.15/10万,发病率年均增长速度为92.23%;在报告的5 859例病例中,男女性别比为0.3∶1,各年生殖道沙眼衣原体感染男女性别差异有统计学意义;发病年龄主要集中在20~29岁年龄组,占50.96%;江苏省生殖道沙眼衣原体感染报告病例主要集中在苏南和苏中的较发达城市;主要以家庭及待业者和工人为主。结论江苏省生殖道沙眼衣原体感染发病率快速增长,应加强对生殖道沙眼衣原体的防治,以控制其感染的快速流行。江苏省医学重点人才(RC2011086);江苏省医学重点人才(RC2011087); 江苏省科技项目(Y201029

An Amine-Decorated Pores Metal Organic Framework CAU-1: High and Selective CO2 Uptake

An Amine-Decorated Pores Metal Organic Framework CAU-1: High and Selective CO2 Uptak

Effects of Diets,Densities and Substrata on Metamorphosis Rate to Postlarvae of Scylla serrata Megalopae

实验观察了不同饵料、池底、密度对锯缘青蟹大眼幼体蜕皮变态率和残杀率的影响.实验结果表明:投喂裸腹蚤时,大眼幼体蜕皮变态率最高,3种池底大眼幼体蜕皮变态率平均为 78.1%,残杀率最低平均为 11.4%;海泥池底大眼幼体蜕皮变态率最高,投喂3种饵料的大眼幼体蜕皮变态率平均为84.8%,残杀率最低平均为7.6%;裸腹蚤是青蟹大眼幼体培育适宜的饵料,而海泥则是大眼幼体变态适宜的池底.不同培育密度对青蟹大眼幼体蜕皮变态率和残杀率的实验结果表明:当大眼幼体的培育密度为3 尾/dm3 时,其蜕皮变态率最高,而残杀率与大眼幼体培育密度的关系不明确. 【英文摘要】 Effects of different dietary,densities and substrata on metamorphosis rate and cannibalistic rate from protozoea 1 (PZ1) to postlarvae 1(PL1) stages of Scylla serrata megalopae were studied in two separate experiments.In the first experiment,three dietary:Monia mongolica,minced meat of Ruditapes philippinaram which filted through mesh and haima 0 shrimp stuff and three substrata:sea mud,sand and cement were investigated.It showed that the metamorphosis rate of megalopae was higher when it was fed Monia mong...国家海洋 863 项目“锯缘青蟹大规模人工育苗技术”(2002AA603013)资