推广普及草食家畜配合饲料的建议

文章通过对普及推广草食家畜配合饲料制约因素的分析，提出一些针对性的对策和建议，旨在改变配合饲料在草食家畜业上利用滞后的局面。     

涠洲岛湿地对鸻鹬类水鸟的承载力评估

【目的】评估候鸟迁徙季节涠洲岛湿地对鸻鹬类水鸟的承载力。【方法】调查监测候鸟迁徙季节涠洲岛湿地生物量和鸻鹬类水鸟群落,由水生生物热量和鸻鹬类群落的综合代谢率估算涠洲岛湿地食物量对鸻鹬类水鸟的承载力。【结果】鸻鹬类水鸟在涠洲岛的觅食地面积为158.54hm~2,包括库塘面积40.58hm~2,沼泽面积69.56hm~2以及涠洲岛东岸潮间带面积48.40hm~2。鸻鹬类群落由35种鸟类组成,涠洲岛湿地对鸻鹬鸟类春秋季承载力分别为874~1 236只和1 001~1 302只。觅食地承载力密度(只/hm~2)春季库塘10.7沼泽5.6潮间带4.8,秋季沼泽6.8库塘4.3潮间带3.6。淡水湿地密度高于潮间带密度。1990年以来潮间带觅食地面积损失了86%,单位面积平均生物量下降了55%。【结论】湿地面积、水生生物丰度影响涠洲岛湿地对鸻鹬类的承载力,修复湿地可提高承载力。     

The first record of the genus Vejdovskybathynella Serban and Leclerc, 1984 (Syncarida,Bathynellacea, Bathynellidae) in the Iberian Peninsula: three new species

Three new species of the genus Vejdovskybathynella are described from caves in northern Spain. It is the first time that this genus has been documented in the Iberian Peninsula. Vejdovskybathynella edelweiss n. sp. has several unique features: the setal formula of the antenna (0/2+exp/2+0/1+0/0+0/2+2/4); the form of the segments and claws of the mandibular palp of the mandible of the male; exopod of the female thoracopod VIII similar in size to the endopod (exopod is always longer than the endopod); small frontal projection of the basipod of the male thoracopod VIII, large or very large is common; the form and size of the lobes of the male thoracopod VIII is unique; the second spine of the furcal rami 2.5 times longer than the first spine. Vejdovskybathynella caroloi n. sp. has a unique male thoracopod VIII with a spur in the exopod that is a feature unknown in the genus, and additionally, this species has the smallest endopod of the thoracopod VIII male of the entire genus; the presence of three aesthetascs in segments VI and VII of the antennule had not been observed in this genus until now; the form of the segments of the mandibular palp of the mandible of the male are unique; the distal spine of the sympod of the uropod is larger than in other species, whereas in the rest of the species of the genus they are equal in size. Vejdovskybathynella pascalis n. sp. is the smallest species of the genus and has two and three aesthetascs in segments VI and VII of the antennule, respectively; it is the only species of the genus that has one seta on segment I and two setae on segment IV of the antenna; it has a unique male thoracopod VIII with a small spur on the frontal projection of the basipod and with the endopod larger than all other species in spite of its small size; the basal spine of the sympod of the uropod is smaller than the other three.     

水域中抗生素生态毒理效应研究进展

抗生素是一类个人医药及护理品（personal pharmaceutical products,PPCPs）的新型污染物,它在农业及医学等领域应用广泛,从而在水域中易残留并带来诸多生态风险。水生生物是评价各种有机污染物的经典模式生物,因此本文综述了抗生素对多种模式生物毒性效应的最新研究成果,并对毒性效应的预测以及环境因素对毒性效应影响等几个方面进行了阐述,最后展望了抗生素对水生生物毒理的研究方向。     

明孝陵神道演变考

明孝陵神道演变考丁宏伟（东南大学建筑系，南京２１００１８）明孝陵是我国帝王陵寝建筑发展史上一个转折点．它开创了自明一代陵寝建筑的新规制，其后明、清两代帝陵均以此为基本格调．因而明孝陵在我国陵寝建筑史上占有十分重要的地位，特别是孝陵自由曲折的神道布局形...     

内蒙古水生与半水生半翅目昆虫的研究（Ⅰ）——尺蝽科,水蝽科

记述了内蒙古水生与半水生半翅目２个内蒙古新纪录科：尺蝽科Ｈｙｄｒｏｍｅｔｒｉｄａｃ、水蝽科Ｍｅｓｏｖｅｌｉｉｄａｅ，２个中国新纪录种：细尺蝽ＨｙｄｒｏｍｅｔｒａｇｒａｃｉｌｅｎｔａＨｏｒｖａｔｈ、双突水蝽ＭｅｓｏｖｅｌｉａｔｈｅｒｍａｌｉｓＨｏｒｖａｔｈ及２个内蒙古新纪录种：无突水蝽Ｍ．ｆｕｒｃａｔａＭｕｌｓａｎｔｅｔＲｅｙ、单突水蝽Ｍ．ｖｉｔｔｉｇｅｒａＨｏｒｖａｔｈ，并编写了内蒙古水蝽科昆虫分种检索表．     

重庆动物园野生动物体内寄生虫病的防治

在9年防治园养野生动物寄生虫病的研究中,选用了10种驱虫药物进行驱虫试验,筛选出5种较理想的治疗和预防体内寄生虫的药物:丙硫苯咪唑、盐酸左旋咪唑、灵特、甲苯咪唑和吡喹酮.     

从英语动物类习语的文化渊源分析其汉译方法

翻译是语言运用的一种特殊形式，注重研究源语与目的语之间的异同以及言内关系。从而实现源语和目的语最大限度的对等，这是翻译研究的重点。语言是社会生活的反映，是社会化的一部分。英语动物类习语作为社会化的一部分，在进行汉译时必须考虑化渊源的影响和制约，在“形似”和“神似”之间作出选择，同时也要考虑译读因素，进一步实现由“弃形保神”向“形神兼备”转化的可能。     

水生植物在污水净化、恢复湿地生态系统中的作用

水生态环境的严重恶化已经威胁到了人类的生存.如何恢复自然水体生态、改善水体质量,在今天更显得意义深远.大量研究证明,水生植物可吸收、富集水中的营养物质及其他元素,有抑制有害藻类繁殖的能力,遏止底泥营养盐向水中的再释放,并可增加水体中的氧气含量,更有利于水体的生态平衡等.     

液相色谱法测定水产品中游离甲醛含量的研究

甲醛在水产品中以3种状态存在,其中游离态甲醛对人体造成的危害最大。通过三氯乙酸提取水产品中的游离态甲醛,采用二硝基苯肼衍生-高效液相紫外检测法测定游离态甲醛含量,确定了有关测定的参数。结果表明:本方法能消除复杂基体的干扰,具有线性关系好、重复性好、精确度高等优点;方法相对标准偏差小于7％,回收率75．0％～87．1％,检出限为O．2 mg/kg,该方法适合水产品中游离态甲醛的测定。