利用百合鳞片组织诱导育苗的试验研究     

苏荣德  刘丽荣  李忠利 《辽宁农业职业技术学院学报》2002,4(4):7-8

球根花卉之一百合,以其球根鳞片组织为外植体进行诱导培养,经过多组合培养基对比试验,筛选出各培养阶段最适宜的培养基:诱导分化,MS 6BA3.0mg/L NAA0.2 mg/L;继代增殖,MS 6BA3.0 mg/L IAA0.1mg/L;生根培养,1/2MS IAA2.0 mg/L.  相似文献   

Does the definition of the Mediterranean diet need to be updated?     

Serra-Majem L  Trichopoulou A  Ngo de la Cruz J  Cervera P  García Alvarez A  La Vecchia C  Lemtouni A  Trichopoulos D;International Task Force on the Mediterranean Diet 《Public health nutrition》2004,7(7):927-929

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土地沙漠化过程的土壤风蚀率指标——以青海共和盆地为例   总被引：2，自引：1，他引：2  

张春来邹学勇  董光荣 《水土保持学报》2003,17(4):90-93

由风蚀所导致的土壤物质再分配过程,决定了土地沙漠化的程度。根据半干旱干草原地区不同程度沙漠化土地土壤风蚀率的137Cs示踪结果,沙漠化各个阶段的土壤风蚀率指标为:潜在沙漠化土地以微弱堆积和微度风蚀为特征,风蚀率小于2000kg/(hm2·a);轻度沙漠化土地风蚀率介于2000～7000kg/(hm2·a)之间;中度沙漠化土地风蚀率大于7000kg/(hm2·a);重度沙漠化土地风蚀和堆积都很强烈,地表物质交换迅速,没有必要制定风蚀指标。  相似文献   

Meeting Schedules     

The emphasis is on the importance of humans  animals interacting for their mutual benefit. Among the subjects planned for discussion are: 《Journal of Equine Veterinary Science》2003,23(9):417-418

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鹅副粘病毒对鸡胚及雏鸡致病性的初步研究     

李天松  胡桂学 《吉林畜牧兽医》2002,(10):4-5

鹅副粘病毒是一种引起多种家禽疾病的病毒,通过人工感染鸡胚和雏鸡试验,其结果表明本病毒主要以呼吸系统、消化系统病变为主要临床症状和特征,并且可导致10日龄的鸡胚100％死亡,对雏鸡的致死率为85％。因此,可见其致死率高,广大养殖户应重视鹅副粘病毒的预防。  相似文献   

木质纤维生物量一步法(SSF)转化成乙醇的研究进展   总被引：3，自引：0，他引：3  

张德强  黄镇亚  张志毅 《北京林业大学学报》2001,23(6):52-55

该文综述了木质纤维生物量一步法 (SSF)转化成乙醇的研究进展 ,总结了SSF法的优点 ,提出了现阶段SSF法存在的问题以及在今后研究中需要解决的问题 .  相似文献   

Transport of the oval squid Sepioteuthis lessoniana Férussac, 1831 in Lesson 1830–1831 (Cephalopoda: Loliginidae) for up to 24 h and subsequent transfer to an aquarium     

Yuzuru  IKEDA  Yukio  UETA  the late Ikuko  SAKURAZAWA  the late Gen  MATSUMOTO 《Fisheries Science》2004,70(1):21-27

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Primates in biomedical research     

Committee on the Conservation of Nonhuman Primates 《Science (New York, N.Y.)》1975,189(4196):8

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2005 Guidelines for the diagnosis, prevention and management of heartworm (Dirofilaria immitis) infection in dogs   总被引：2，自引：0，他引：2  

Nelson CT  McCall JW  Rubin SB  Buzhardt LF  Dorion DW  Graham W  Longhofer SL  Guerrero J  Robertson-Plouch C  Paul A;Executive Board of the American Heartworm Society 《Veterinary parasitology》2005,133(2-3):255-266

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World Association for the Advancement of Veterinary Parasitology (W.A.A.V.P.) guidelines for evaluating the efficacy of ectoparasiticides against biting and nuisance flies on ruminants     

Holdsworth PA  Vercruysse J  Rehbein S  Peter RJ  De Bruin C  Letonja T  Green P;World Association for the Advancement of Veterinary Parasitology 《Veterinary parasitology》2006,136(1):3-13

These guidelines have been prepared to assist in the planning, conduct and interpretation of studies for the assessment of the efficacy of ectoparasiticides (excluding repellents) against the biting and nuisance dipteran flies of ruminants. Information is provided on the selection of animals, dose determination and dose confirmation studies, field studies, record keeping and result interpretation. These guidelines advocate the use of pen facilities for dose determination and dose confirmation studies. These guidelines also are intended to assist investigators on how to conduct specific studies, to provide specific information for registration authorities involved in the decision-making process, to assist in the approval and registration of new ectoparasiticides, and to facilitate the worldwide adoption of standard procedures.  相似文献