贵州草坪建植与养护管理     

李文刚 《贵州林业科技》1999,27(4):53-54

根据贵州绿化情况，提出适宜草坪建植和养护管理的方法措施。  相似文献   

赴湖北省农产品质量安全暨市场准入考察报告     

刘英杰  葛军  秦晓辉  李文刚  郭新正  杨玲 《新疆农业科技》2009,(6):2-4

0 引言 湖北省是有名的农业大省,素有"鱼米之乡"的美誉.其多种主要农产品总产量居全国前十位,油菜和水产品产量更是名列前茅.为学习湖北省在农产品质量安全和市场准入方面的先进经验,自治区农业厅组织了考察组,于2009年11月赴湖北省进行了专题考察.考察组与湖北省农业厅进行了座谈,参观了湖北省和荆州市农产品质量安全检测中心,走访了武汉市白沙洲农副产品大市场、荆州市两湖平原农产品交易物流中心等单位.现将考察情况报告如下:  相似文献   

THE RISE OF NATURAL HISTORY MUSEUMS     

Farrington OC 《Science (New York, N.Y.)》1915,42(1076):197-208

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转基因饲料的安全性及其概况   总被引：1，自引：0，他引：1  

三濑腾利  李文刚 《饲料广角》1998,(2):39-45

有关转基因食品安全性的议论经常见于多种媒体。1996年9月,卫生厅接受了卫生调查委员会的申请,对适合于安全性评价标准指南的7个转基因食品给予了确认。这些转基因食品量虽不多,但在日本利用转基因玉米和菜籽油制成的食品已见诸于市场。现在作为评价对象的可直接食用的转基因食品还仅来源于植物,而来自动物、微生物的尚不  相似文献   

新型佐剂研究进展   总被引：1，自引：0，他引：1  

杨慧敏  肖松云  李文刚 《郑州牧业工程高等专科学校学报》2009,29(3):13-15,19

佐剂（Adjuvant）又称免疫调节剂（Immunomodulator）或免疫增强剂（Immune potentiator），是指先于抗原或与抗原混合或同时注入动物体内，能非特异性地改变或增强机体对该抗原的特异性免疫应答，发挥辅助作用的一类物质。  相似文献   

在传染病防治工作中如何正确使用疫苗     

项朝荣  李文刚  吴凤笋  樊淑华  韩勇 《现代畜牧兽医》2006,(12):32-34

在过去的100多年里，疫苗在预防传染病方面起了非常大的作用，为人类健康和畜牧业的发展做出了重要的贡献。免疫接种是预防和控制疾病的有效途径。只有优质的疫苗、良好的运输和保存条件及正确的使用方法，才能产生良好的免疫预防效果。在动物生产中因种种因素造成的免疫失败时有发生，如何正确使用疫苗是一个值得关注的话题。  相似文献   

内蒙古南部地区马铃薯病毒种类及其危害规律的研究     

李文刚  巩秀峰 《马铃薯杂志》1991,5(1):18-24

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Prevalence of Sarcocystis neurona sporocysts in opossums (Didelphis virginiana) from rural Mississippi     

Dubey JP  Black SS  Rickard LG  Rosenthal BM  Lindsay DS  Shen SK  Kwok OC  Hurst G  Rashmir-Raven A 《Veterinary parasitology》2001,95(2-4):283-293

Sarcocystis species sporocysts were found in intestinal scrapings from 24 of 72 opossums (Didelphis virginiana) from rural Mississippi. The number of sporocysts in each opossum varied from a few ( < 100000) to 187 million. Sporocysts from 24 opossums were bioassayed for Sarcocystis neurona infections by feeding to gamma-interferon knockout (KO) mice. S. neurona was detected in the brains of KO mice fed sporocysts from 19 opossums by immunohistochemical staining with anti-S. neurona specific polyclonal rabbit serum, and by in vitro culture from the brains of KO mice fed sporocysts. The isolates of S. neurona from opossums were designated SN16-OP to SN34-OP. Merozoites from 17 of 19 isolates tested at the 25/396 locus were identical to previously described S. neurona isolates from horses. The high prevalence of S. neurona sparocysts in D. virginiana suggests that this opossum constitutes an ample reservoir of infection in the southern United States.  相似文献   

Diclazuril preventive therapy of gamma interferon knockout mice fed Sarcocystis neurona sporocysts     

Dubey JP  Fritz D  Lindsay DS  Shen SK  Kwok OC  Thompson KC 《Veterinary parasitology》2001,94(4):257-264

Gamma interferon knockout (KO) mice (n=74) were fed a lethal dose of approximately 1000 sporocysts of the SN15-OP isolate of Sarcocystis neurona. Groups of mice were given pelleted rodent feed containing 50ppm of diclazuril at different times before and after feeding sporocysts. All mice were examined at necropsy and their tissues were examined immunohistochemically for S. neurona infection. Twenty mice were fed sporocysts and given diclazuril starting 5 days before feeding sporocysts and continuing 30-39 days post-infection (p.i.). One mouse died of causes unrelated to S. neurona with no demonstrable parasites; the remaining 19 mice remained clinically normal and S. neurona organisms were not found in their tissues. Sarcocystis neurona organisms were not demonstrable by bioassay of the brains of these 19 mice in uninfected KO mice. Sarcocystis neurona organisms were not found in tissues of five mice treated with diclazuril, starting 7 days after feeding sporocysts and continuing up to 39 days p.i. Therapy was less efficient when diclazuril was given 10 days p.i. Sarcocystis neurona organisms were found in two of 19 mice treated with diclazuril starting 10 days after feeding sporocysts, in two of five mice starting therapy 12 days p.i., and in 10 of 10 mice when treatment was delayed until 15 days p.i. All 15 mice fed S. neurona, but not given diclazuril, developed neural sarcocystosis and were euthanized 22-30 days after feeding sporocysts. Six mice not fed S. neurona, but given diclazuril for 44 days, remained clinically normal. Results indicate that diclazuril can kill the early stages of S. neurona.  相似文献   

Allergic contact dermatitis of bovine teat skin caused by milking machine cluster rubber     

Holzhauer M  Sampimon OC  Sol J  van Walderveen A  van Ginkel CJ 《The Veterinary record》2004,154(7):208-209

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