An analytical approach to the veterinary knowledge of the Islamic period     

Dinçer F 《Historia medicinae veterinariae》2002,27(1-4):177-195

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Relevance of infection with equine herpesvirus 1 (EHV-1) in a German thoroughbred stud: vaccination, abortion and diagnosis     

Schröer U  Lange A  Glatzel P  Ludwig H  Borchers K 《Berliner und Münchener tier?rztliche Wochenschrift》2000,113(2):53-59

The aim of the present study was to clarify whether an EHV-1 induced abortion can be prognosticated by an increase of antibody titres, virus shedding and/or viraemia and whether the current abortion diagnostic is suitable. In this context the immune response post immunization and a possible reactivation were of great interest. For this purpose blood samples of 32 mares between the ages of 5-21 years were regularly investigated during a period of two years before and after vaccination and pregnancy. Neutralization tests, indirect immunofluorescence tests as well as PCR and virus isolation were used for EHV-1 diagnostics. It could be shown that the horses reacted individually to vaccination. In 14 cases a EHV-1-reactivation was suggested. An abortion prognosis was not possible even using serological, virological and molecular biological parameters. In addition, virus shedding and antibody titres were individual. An acute infection was detectable by a significant rise of antibodies and viraemia as well as virus shedding in the secretions. For the abortion diagnostics the antigen detection in combination with virus isolation and PCR from fetal lungs gave reliable results. In addition, the virological and serological investigation of the mare is recommendable. For prophylaxis we would advise a regular vaccination and strict hygiene.  相似文献   

Density and Organic Matter Influence on Egg‐laying and Hatching of Branchiura sowerbyi (Oligochaeta)     

Karine Cristiane Rech  Renata Maria Guereschi  Alex Pires de Oliveira Nuñer  Sarah Carvalho Sticca 《Journal of the World Aquaculture Society》2013,44(2):267-272

This study aimed to assess the combined effects of density of adults of Branchiura sowerbyi and the source of organic matter on the production of eggs and young species. The experimental units used were 250‐mL beakers with 100 mL of fine sand (0.074–0.210 mm) and 150 mL of chlorine‐free water with constant aeration at the temperature 25 C. The experiment was conducted based on a two‐factor model with six treatments and three repetitions, applied in a completely random design. The densities 5 individuals/38.5cm² (D5; 1298/m²) and 8 individuals/38.5cm² (D8; 2078/m²) were assessed with commercial fish feed (FF), commercial poultry feed (PF), and turkey manure (TM) as sources of organic matter. A total of 1223 cocoons and 2138 eggs were produced, with average hatching of 40.0 ± 15.1%. The highest number of cocoons and eggs was found with the use of PF, D8 having produced the highest number of cocoons and eggs. The hatching rate was not influenced by the source of organic matter or density and no influence was registered from the density of adults on the survival. The PF provided the highest growth of adults, and generally the use of TM provided the worst performance.  相似文献   

基于EOD模式的田园综合体碳平衡初步研究          下载免费PDF全文

杜胜男  马郝佳  刘静  李娟英  陈以芹  何文辉 《上海海洋大学学报》2024,33(1)

中国正在不断推进农村绿色经济转型与乡村振兴战略，田园综合体等各种以生态环境为导向的农业开发模式是乡村振兴建设的新途径，驱动农业固碳减排的同时，也带动着传统农业不断向现代农业发展的转变。以EOD（Ecology-Oriented-Development，生态环境导向的开发）模式的上海市金山区枫泾镇郊野村庄田园综合体为研究对象，在现场调研与数据统计的基础上，分析了园区内的碳输入和碳输出以及碳在园内各区域间的流动和储积；同时，根据碳源和碳汇清单和估算结果，分析了田园综合体各区的碳平衡特点。结果显示，上海市金山区郊野村庄田园综合体2021年碳平衡表现为净碳汇区，净碳汇量为152.09 tC，其中排放量为588.79 tC，碳固定量为740.88 tC。田园综合体内，作物种植区通过低碳有机种植模式成为净碳汇量最大的区域，净碳汇量185.76 tC；水产养殖区通过高效的水草多级循环利用模式净碳汇量达62.20 tC；高空间利用率的立体农业区因农肥的碳排放量大表现为碳源区，净碳汇量为-10.81 tC；生产生活区是最大的碳源区，净碳汇量达-85.05 tC，人类文旅活动是其中最大的碳排放源。分析结合该田园综合体的碳流动，提出了发展高物质循环利用率、高空间利用率、低碳有机种植模式和农业科学管理四个农业降碳增汇的方向。  相似文献   

GA对林木种子萌发的调控研究进展   总被引：13，自引：0，他引：13  

余朝霞  黄雪群  方志尚  蒋昌淦  张喜儿 《浙江林业科技》2003,23(1):73-76,80

综述了近年来GA对林木种子萌发试验方面的报道，对GA的种类，代谢及信号传导，GA调节林木种子萌发的常用研究方法，GA在林木种子萌发中的作用以及GA调节种子萌发的作用机理方面做了详尽阐述。  相似文献   

The Role of ProBNP on Prognosis in Scorpion Stings     

Ufuk Utku Güllü  Sevcan İpek  Tahir Dalkıran  Serpil Dinçer  Sadık Yurttutan  Eser Aynacı 《The Forestry Chronicle》2021,32(2):137-142

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干热处理对不同品种南瓜种子的影响     

黄芸萍  马凯慧  严蕾艳 《长江蔬菜》2014,(8):35-37

选择5个不同品种的南瓜种子,对其进行干热处理,以未处理同品种南瓜种子为对照。通过测定种子的发芽率、发芽势、发芽指数和出苗率等,探讨干热处理对不同南瓜种子萌发的影响。试验结果表明,干热处理对于不同品种的南瓜种子的影响不大,干热处理会使南瓜种子水分有缺失,但在处理结束后,水分会慢慢恢复,且处理前后的南瓜种子的发芽率和出苗率等都没有因为干热处理而产生显著差异。  相似文献   

The impact of initial concentration of selected pharmaceuticals on their early stage of dissipation in soils     

Menacherry  Sunil Paul M.  Kočárek  Martin  Kacerova  Tereza  Kotíková  Zora  Kačer  Petr  Kodešová  Radka 《Journal of Soils and Sediments》2022,22(2):522-535

Journal of Soils and Sediments - Dissipation of pharmaceutical compounds entered into the natural environment is an important process minimizing the adverse effects on the living organisms. The aim...  相似文献   

Determining home range,changes in habitat use with time,and the threats to an endangered freshwater turtle (Rafetus euphraticus) in Turkey     

Yusuf Bayrakcı  Dinçer Ayaz  Luca Luiselli 《水产资源保护:海洋与淡水生态系统》2021,31(11):3276-3290

1. The Euphrates softshell turtle (Rafetus euphraticus) is the most threatened chelonian species in the Middle East, where it is endemic to the Tigris and Euphrates basins. Since the ecology of this species is little known, it is difficult to plan any reliable action for its correct management and conservation.
2. To enhance the scientific knowledge on R. euphraticus, and to establish a science-based management strategy, a detailed investigation was undertaken on the distribution, habitat, activity and home range of R. euphraticus in Turkey. The previous distribution records in Turkey are for the 1990s; thus, this study is the first comprehensive field research on the species after nearly 3 decades.
3. There was a significant sexual size dimorphism in the Turkish population, with males larger than females.
4. Four individuals were radiotracked for 1 year. The mean home range was highly variable depending on how it was calculated, but that of males was considerably greater than that of females by all methods used.
5. A quantitative evaluation was made of habitat change with time. The land cover classes potentially available to turtles in the Euphrates River basin increased by more than 100% between the 1990s and 2018: 92% of this enhancement was derived from water bodies and coastal lands.
6. Fifteen dams have been built in the lower part of the basins in the last 30 years. In addition, continuing human interactions have caused the fragmentation or destruction of suitable habitats for R. euphraticus.
7. The factors threatening R. euphraticus were assessed and a conservation action plan was developed. Some objectives such as monitoring and creating awareness of this action plan have been met while others are still waiting to be achieved.

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A survey of veterinary education and administration in Turkey     

F Din?er 《DTW. Deutsche tier?rztliche Wochenschrift》1991,98(5):179-180

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