秦岭野生草坪植物—羊茅的引种驯化

通过对秦岭野生草坪植物-羊茅两个生态型（变种）的引种试验观察，初步发现它们具有绿期长、抗逆性强、繁殖能力强、抗杂草病害等特点，为具有开发前景的优良冷季型草坪植物。     

野生草坪植物--秦岭苔草的引种驯化初报

通过对秦岭野生植物———秦岭苔草Carex diplodon的引种驯化,初步发现其具有绿期长,抗逆性强,繁殖能力强,抗杂草,抗病虫,抗旱等特点,其耐阴性尤其显著,林下生长健壮,是一种具有开发前景的优良冷季型草坪植物。     

优良草坪植物--卵穗苔草

卵穗苔草Carex duriuscula在我国分布广,数量多,具有草坪植物返青早、色泽好、寿命长、容易繁殖、地下根茎发达、耐践踏等特性.可作为草坪植物,具有广阔的应用前景.     

《中国草坪植物栽培》简介

由我国著名的牧草学家肖文一先生编著的《中国草坪植物栽培》一书,系统地总结了我国草坪科学实践和近代科学研究的成果,为一部具有中国特色的草坪植物栽培科学技术专著。全书共三篇15章。书中首次阐述了草坪和草坪植物的基本概念;我国草坪的发展历史;草坪在国民经济中的地位和作用等。第一篇为草坪植物的生物学基础,论述了草坪植物的形态特征、植物学类群及其与环境条件的关系。第二篇为草坪植物栽培综合技术,结合我国草坪生产实践,介绍了草坪的类别与设计;草坪植物栽培的土壤与土壤耕作,肥料与施肥,种子与播种,草坪的科学管理与养护,草坪的品质评定与更新等。第三篇为名论,以我国乡土     

草坪植物与温度

温度是草坪植物的重要环境因素之一,温度胁迫会引起草坪植物体内糖类、脂类、蛋白质等大分子物质的代谢作用、呼吸作用、光合作用等生理过程,以及细胞膜、细胞器等结构的变化。通过分析温度胁迫对草坪植物的影响,并提出了一些改善草坪植物抗性的方法和途径。     

吸保水剂对几种草坪植物生长的影响

在人工控制给水的情况下,试验研究了吸保水剂对几种草坪植物生长的影响,研究表明,在干旱情况下吸保水剂能够促进参试草坪植物出苗,明显地促进参试草坪植物的株高生长;明显地增加参试草坪植物地上部分生物量。吸保水剂对草坪植物的抗旱有明显作用,在坡面和干旱地区植被工程中吸保水剂有很高的应用价值。     

化学处理对结缕草种子发芽率的影响

结缕草（Zoysia japonica）属多年生禾本科植物，抗旱、抗寒、耐热、耐磨耐践踏、耐盐碱，与杂草竞争能力强，具有极其发达的根茎与匐茎，适于作运动场草坪植物，是较好的保土护坡植物，也可作观赏草坪。在我省西宁地区干旱气候条件下具有较强的适应性，在西宁地区种植结缕草具有一定的生态效益和经济效益。     

气源性污染对园林草坪植物的影响及植物自我修复研究进展

综述了近年来国内外有关气源性污染源对园林、草坪植物的危害症状、危害机理以及园林、草坪植物自我修复的研究现状和发展方向,探讨了园林、草坪植物在大气污染条件下的适应特点,为改造环境、净化空气提供理论依据。     

草坪植物与光照

在综合分析草坪植物光吸收规律、光照质量、日照长度和光照强度对草坪植物形态结构、生理特征、生长发育特点影响的基础上，提出了我国草坪植物生态学研究和发展方向的建议，以供同行参考。     

废弃报纸植生带建坪主要指标的模拟研究

依据无纺布草坪植生带建植原理,以生活废弃报纸为载体,对３种草坪植物植生效果主要指标进行了模拟研究,结果表明;多年生黑麦草成坪效果最好,最熟禾居中,匍茎剪股颖最差。其成坪指数比为：多年生黑麦草：早熟禾：匍茎剪股颖＝２８．５９：７．７１：１。证明在以废弃报纸为栽体的植生带生产中,选用种子穿透力强的草坪植物是可行的。     

Expression and localisation of claudin-1, -2, -3, -4, -5, -7 and -10 proteins in the normal canine mammary gland

The recently identified claudins are dominant components of tight junctions, responsible for cell adhesion, polarity and paracellular permeability. Certain claudins have been shown to have relevance in tumour development. The aim of the present study was to analyse the expression of claudin-1, -2, -3, -4, -5, -7 and -10 in normal canine mammary glands. Samples from the inguinal mammary regions of 20 non-castrated, 1-13 years old female dogs were studied. Immunohistochemical analysis was performed on conventional specimens and tissue microarrays. The results of the immunohistochemical reactions detecting claudins in tissue sections were photodocumented. The immunoreactivity of claudins was quantitatively analysed on digital images using Leica QWin morphometry software. Intense membranous immunolabelling was found for claudin-1, -3 and -7, intense membranous with non-granular cytoplasmic immunolabelling for claudin-2, moderate membranous immunolabelling for claudin-4 and -5, and weak membranous immunolabelling for claudin-10. The occurrence of tight junctions was confirmed by ultrathin section electron microscopy. The available data suggested that claudins might be proteins preserved throughout the evolution of mammals. The results of our study support the concept that they are indeed preserved, since the same type of claudins, in identical distribution, could be detected in our canine mammary tissue samples as could be found in human mammary tissue.     

Pharmacokinetic behavior in sheep and cattle of 5-chloro-2-(methylthio)-6-(1-naphthyloxy)-1H-benzimidazole, a new fasciolicide agent

The physicochemical properties, p K _a, Log P and solubility of compound alpha, (5-chloro-2-(methylthio)-6-(1-naphthyloxy)-1 H -benzimidazole), a new fasciolicide agent, were characterized using conventional methods. Also, its pharmacokinetics was evaluated in sheep and cattle. In both species an oral dose of 12 mg/kg was administered. Blood samples were collected during 144 h and analyzed by using an HPLC assay. Results showed that compound alpha is a weak base with a p K _a value of 2.87 and log P of 1.44. The solubility was very low in aqueous solvents. Pharmacokinetic studies showed that in both species compound alpha could not be detected at any sampling time. The mean half-life ( t _½) values of alpha sulphoxide in sheep and cattle were 19.86 and 29.87 h, while the half-life values of alpha sulphone were 19.43 and 46.32 h respectively. C _max values of alpha sulphoxide did not differ between species while alpha sulphone values were higher in cattle. Plasma protein binding of alpha sulphoxide was between 82% and 86%. These results, combined with the previous efficacy studies, suggest that compound alpha could be a promising fasciolicide agent.     

菲兰谱（西安）生物营养工作室

生育素（肉禽篇）（水溶粉）： 菲兰谱最新推出的生育素系列衍生制剂。肉鸡、肉鸭专用。显著提高日增重；有效降低腹脂率；增加胸腿肌含量；提高皮肤黄度值。     

ZJH92—1型,ZJH92—2型烘茧灶

ＺＪＨ９２－１型和ＺＪＨ９２－２型烘茧灶是浙７３－１型烘茧灶的改进灶型。文中对新旧灶型的性能和蚕茧干燥质量进行了较全面的测试。测试数据表明，用新灶型替代老灶型，经济效益明显提高。     

6～18周龄固始鸡G_2系日粮中适宜蛋白质水平的研究

将288只5周龄固始鸡G2系随机分成8组,预试1周后,分别饲喂含蛋白质水平为8.87%、10.02%、11.23%、12.37%、13.49%、14.68%、15.85%、17.07%的日粮,研究了上述8种不同蛋白质水平的日粮对固始鸡体重、胫长、料重比等生产性能的影响,并从供试鸡行为学观察和固始鸡育种的角度进行分析。试验结果表明,6～18周龄固始鸡G2系日粮中适宜蛋白质水平为13.49%。     

Pathogenicity studies of feline coronavirus isolates 79-1146 and 79-1683

Two feline coronavirus isolates were characterized by their disease-causing potential in cats. The 79-1683 feline coronavirus isolate caused an inapparent-to-mild enteritis when given oronasally to specific-pathogen-free kittens and was not a cause of feline infectious peritonitis (FIP). Target tissues for the virus were the mature apical epithelium of the small intestine, mesenteric lymph nodes, tonsils, thymus, and (to a lesser extent) the lungs. Inoculated kittens shed high numbers of virus in their feces for 14 to 17 days, but remained infectious to susceptible kittens for longer periods of time, as evidenced by contact-exposure studies. Because the 79-1683 isolate induced only enteritis, it was designated feline enteric coronavirus (FECV) 79-1683. The 79-1146 feline coronavirus isolate induced effusive abdominal FIP in specific-pathogen-free kittens after oronasal and intraperitoneal inoculation. Clinical signs of disease appeared within 12 to 14 days in almost all inoculated kittens. Because this isolate caused FIP, it was designated FIP virus (FIPV) 79-1146. Cross-protective immunity was not induced by the various coronavirus infections. Kittens preimmunized with the UCD strain of FECV (FECV-UCD) or with FECV-79-1683 were not immune to infection with FIPV-79-1146. Likewise, kittens previously inoculated with FECV-79-1683 were not immune to infection with FIPV-UCD1. In fact, preexisting heterologous FECV-79-1683 immunity often accelerated and enhanced the severity of disease caused by inoculation with FIPV-UCD1.(ABSTRACT TRUNCATED AT 250 WORDS)     

中新天津生态城夏季啮齿类的空间生态位

2008年夏季对中新天津生态城的啮齿动物进行调查,采用Shannon-Wiener生态位宽度指数和Pianka生态位重叠指数对啮齿动物空间生态位进行了研究。结果表明,在捕获的5种啮齿动物中,小家鼠和黑线姬鼠的空间生态位宽度指数最高,分别为0.97和0.78;褐家鼠(Bi=0.58)和黑线仓鼠(Bi=0.51)次之;大仓鼠(Bi=0.36)最低。除了黑线姬鼠与其他4种啮齿动物两两之间空间生态位重叠指数均较小(C_P<0.50)外,其他4种啮齿动物两两之间均较高(C_P>0.50)。黑线仓鼠与褐家鼠空间生态位几乎完全重叠(C_P=0.99),在10对啮齿动物中,共有7对之间的空间生态位重叠指数大于0.70。由此可见,生态城啮齿动物之间存在资源竞争,主要原因是生态城是典型的盐碱湿地,可利用资源不丰富,使得动物分布相对集中,增加种间竞争。     

高铁高硒日粮对鸡蛋品质的影响

用高铁高硒日粮饲喂产蛋母鸡,观察蛋品质的变化,结果表明,蛋黄重、蛋黄重／蛋重比略有下降,蛋白质／蛋重比、哈夫单位有所提高,蛋壳／蛋重比,蛋壳厚度及蛋壳密度无明显变化,提示：高铁高硒日粮不会引起蛋品质的明显下降。     

Determination of apparent digestibility coefficients in 6-, 12- and 18-week-old ostriches

1. The apparent digestibility coefficients (ADC) of a diet consisting of a concentrate and of alfalfa grass in a 4:1 ratio were measured in 6, 12-and 18-week-old ostriches. 2. These coefficients were measured in 4 animals eating ad libitum using both a total collection method, and internal marker methods with acid detergent lignin (ADL) and with acid insoluble ash (AIA). 3. The ADC of dry matter, organic matter, crude protein, ether extract and energy were not influenced by the age of the ostriches. The ADC of structural carbohydrates, however, were significantly higher (P<0.01) in the 12-and 18-week-old animals. 4. The results obtained by the total collection and ADL methods were similar. The AIA method, however, overestimated the values due to the very high marker recovery rate (128.0%).