The invention relates to a cultivation method of ternary hybridization scallop commercial offspring

本发明涉及海产经济贝类杂交育种技术领域，特别是一种基于紫扇贝、海湾扇贝和墨西哥湾扇贝三元杂交扇贝商品苗种的培育方法。利用海湾扇贝与墨西哥湾扇贝进行亚种间杂交，然后利用上述获得亚种间杂交一代扇贝和紫扇贝作为种贝，分别进行高度自交纯化，获得纯化的海墨(或墨海)杂交扇贝与紫扇贝进行种间杂交，即实现规模化制备海墨紫(或墨海紫)三元杂交扇贝商品苗种。本发明规模化制备海墨紫(或墨海紫)三元杂交扇贝商品苗种，本发明三元杂交扇贝苗种所用种贝分别是高度自交的紫扇贝品系和海墨(或墨海)杂交扇贝品系，这样可显著增加三元杂交一代扇贝的杂种优势，生长和抗逆优势更明显

Breeding method based on ternary hybridization of purple scallop, bay scallop and gulf scallop

本发明涉及海产经济贝类杂交育种技术领域，特别是一种基于紫扇贝、海湾扇贝和墨西哥湾扇贝三元杂交的育种方法。首先利用海湾扇贝与墨西哥湾扇贝进行亚种间杂交，获得育性不受影响杂交子一代扇贝；然后利用所得杂交子一代扇贝与紫扇贝进行种间杂交，获得正常发育且具有显著的生长和抗逆优势的种间杂交子一代扇贝，而后将三元杂交后代通过群体混交得以纯化，连续选育即获得遗传稳定、性状优良的海墨紫(或墨海紫)三元杂交扇贝新品种。本发明方法可将紫扇贝、海湾扇贝和墨西哥湾扇贝的优良性状集于一体，进而培育出生长和抗逆优势更为显著的三元杂交扇贝新品种，提高扇贝养殖业的良种保存与供应能力

The utility model relates to a shellfish individual growth tracing, measuring and cultivating device

本实用新型属于水产养殖领域，具体地说是一种贝类个体生长追踪测定养殖装置，大框架内并排设有多个小框架，各小框架依次相连，并分别与大框架连接，小框架内为养殖区室；养殖区室的正反两面均覆盖有无节网，正反两面的无节网分别连接于养殖区室的边框上，进而在每个小框架内的养殖区室均形成网袋，网袋的顶部设有用于放置贝类的开口，开口处设有用于对开口进行封闭的锁紧绳，每个网袋内均设有用于贝类个体标记的防水卡片；大框架顶部设有吊耳A，吊耳A上连接有吊拉缆绳A，吊拉缆绳A上连接有用于使装置整体浮于海面的浮球。本实用新型操作方便、简洁高效、剔除了环境和密度影响，可以充分发挥个体的生长性能，实现个体生长追踪测定

正常及光感受器损伤兔眼视网膜下芯片植人后的电生理结果

目的 观察视网膜下芯片所引起的光感受器损伤及正常兔眼的电生理改变。方法 青紫蓝兔共30只，其中22只兔NaIO_3生理盐水溶液静脉注人后眼光感受器受到损伤。将一个由90个微光电二极管组成的阵列和相连电极构成的直径约3 mm的芯片通过巩膜切口植人4只正常及22只注药后光感受器损伤兔右眼的视网膜下腔或脉络膜中,左眼为对照眼;分别检测芯片眼及对照眼局部闪光视觉诱发电位（F-VEP)、局部闪光视网膜电图(F-ERG)、全视野闪光VEP及全视野闪光ERG.另外4只兔双眼摘作病理检查。结果 22只色光感受器损伤兔中有11只芯片眼的局部ERG主波振幅明显大于对照眼；4只正常兔中，2只芯片眼的局部ERG主波振幅大于对照眼。1只芯片眼表面视网膜出现破孔不能引出任何波。局部VEP及全视野闪光VEP重复性较差，全视野闪光ERG未见明确差别。结论 植人的芯片在受到光刺激后可刺激局部视网膜并引起局部视网膜的电活动

JUNO Sensitivity on Proton Decay p→νˉK+p\to \bar\nu K^+ Searches

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this paper, the potential on searching for proton decay in $p\to \bar\nu K^+$ mode with JUNO is investigated.The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits to suppress the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar\nu K^+$ is 36.9% with a background level of 0.2 events after 10 years of data taking. The estimated sensitivity based on 200 kton-years exposure is $9.6 \times 10^{33}$ years, competitive with the current best limits on the proton lifetime in this channel

JUNO sensitivity on proton decay p → ν K + searches*

The Jiangmen Underground Neutrino Observatory (JUNO) is a large liquid scintillator detector designed to explore many topics in fundamental physics. In this study, the potential of searching for proton decay in the $p\to \bar{\nu} K^+$ mode with JUNO is investigated. The kaon and its decay particles feature a clear three-fold coincidence signature that results in a high efficiency for identification. Moreover, the excellent energy resolution of JUNO permits suppression of the sizable background caused by other delayed signals. Based on these advantages, the detection efficiency for the proton decay via $p\to \bar{\nu} K^+$ is 36.9% ± 4.9% with a background level of $0.2\pm 0.05({\rm syst})\pm$$0.2({\rm stat})$ events after 10 years of data collection. The estimated sensitivity based on 200 kton-years of exposure is $9.6 \times 10^{33}$ years, which is competitive with the current best limits on the proton lifetime in this channel and complements the use of different detection technologies