河南木通属(Akebia Decne.)药用植物资源初步研究     

李春奇  李芸  李明泽  刘铁梅  安春香  王怀中  韩世明 《河南农业大学学报》2009,43(6)

通过多年对河南省木通属药用植物资源种类、生境、分布的调查,查明了河南木通属药用植物有2种1亚种,介绍了其生药性状的鉴定方法,探讨了木通属植物的药用特性和应用价值,并提出了开发利用的建议.  相似文献   

推广玉米收获机械化需要注意的关键问题     

安丽君  陈艳 《农业科技与装备》2010,(2):58-59

玉米收获机械化一直是制约黑山县玉米全程机械化的瓶颈,但推广玉米收获机械化需要具备一定的条件.推广玉米收获机械化需要注意的关键问题是需要适度规模经营和规范播种,并与当地实际相结合.同时,玉米收获机产品应采用标准化,提升产品质量和服务质量,为大面积推广玉米收获机提供条件.  相似文献   

4种针叶树种引种试验   总被引：1，自引：0，他引：1  

李爱德  安富博 《甘肃林业科技》2000,25(2):27-29

樟子松、云杉、侧柏、刺柏４种针叶树种在民勤沙生植物园１０多年的引种试验结果表明：樟子松、云杉、刺柏在该地区生长良好，无病虫害发生。云杉、刺柏树形优美，可作庭园、城市绿化树种。樟子松栽植保存率高，生长速度快，适应性强，可作为防护林营造树种。侧柏生长不良，并有锈病发生。  相似文献   

Prevention and Control of Gansu Zokor in Guyuan     

AN Yong-ping  ZHANG Gui-qin  WEI Chun-yan 《陕西林业科技》2008,(4)

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Prevalence ofSarcocystis in food animals in the Sudan     

Hussein S. Hussein  Mohammed Warrag 《Tropical animal health and production》1985,17(2):100-101

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The acute phase reaction detected in dogs by concanavalin A binding     

P. D. Eckersall  M. Sullivan  D. Kirkham  N. A. Mohammed 《Veterinary research communications》1985,9(1):233-238

Using a kinetic turbidimetric assay based on the binding of serum glycoprotein to concanavalin A the acute phase reaction has been detected in dogs. Raised levels of glycoprotein were found in dogs which had undergone surgery, had been treated with bacterial endotoxin and had various inflammatory conditions.  相似文献   

The epidermal location and possible feeding site of Psorergates ovis, the sheep itch mite     

AN SINCLAIR 《Australian veterinary journal》1990,67(2):59-62

Skin biopsies from two Merino sheep heavily infested with Psorergates ovis were immersed in liquid nitrogen and cut into vertical frozen sections stained with lipophilic Sudan IV or Oil Red O and haematoxylin. A survey of the lateral distribution of mite sections showed a majority (ca 80%) were in or within 0.2 mm of the follicle mouth. A survey of vertical distribution showed no mite penetration deeper than inner stratum corneum where 57% of mite sections were seen; 30% were within outer stratum corneum or scurf; 13% were on the outer surface and less than 1% were detached. Lipid was the only material seen within stained mites at a location considered to be gut. This was supported by dosing sheep with quinacrine, taking biopsies at Day 6 and Day 14 and examining frozen sections under blue light. Fluorescent lipid was seen at a location considered to be mite gut. From these results it was recommended that acaricide treatments against P. ovis be lipophilic and administered transepidermally because less than 15% of mites were at a superficial location likely to be reached by topical application.  相似文献   

甜菜碱对热应激肉鸡生产性能的影响   总被引：1，自引：0，他引：1  

黄志毅  安立龙  郑枢  邵少贞  邓素军  许英梅 《家畜生态》2004,25(1):25-29

选用1日龄的肉仔鸡(麻鸡与隐性白的杂交一代)120只在常规状态下饲养至17日龄后进行试验。在试验期内,肉鸡被随机分成3组,并饲养在热应激环境中,对照组喂基础日粮,第 组、 组分别在基础日粮中添加0.1%、0.3%的甜菜碱。试验期内,定期测定采食量,增重等生产性能指标,81日龄时测定屠宰率。结果表明:在17～57日龄,与对照组相比较,第 组公鸡平均增重提高了278.9克/只,母鸡平均增重提高了218.7克/只,差异极显著(P<0.01)。与对照组相比较,第 组公鸡平均增重提高了0.2克/只、母鸡平均增重提高了17.6克/只,差异不显著(P>0.05);在采食量方面,对照组、第 组、第 组分别是:公鸡61.05克/只·日、66.12克/只·日、65.84克/只·日,母鸡46.68克/只·日、54.97克/只·日、53.59克/(只·日),三组差异不显著;与对照组相比较,第 组公鸡饲料转化率提高了0.5,差异显著(P<0.05);第 组母鸡饲料转化率提高了0.19,差异显著(P<0.05);与对照组相比较,第 组公鸡饲料转化率减少了0.22,差异显著(P<0.05);第 组母鸡饲料转化率减少了0.26,差异显著(P<0.05);对照组、第 组、第 组肉鸡的屠宰率分别是公鸡91.15%、90.90%、91.05%,母鸡91.70%、91.55%、91.85%,各组的屠宰率差异不显著(P>0.05)。结果证明,适量甜菜碱可以缓解热应激对肉鸡的不  相似文献   

Financial comparison of three testing strategies for detection of estrus in dairy cattle   总被引：1，自引：0，他引：1  

H O Mohammed  S Loefler  J Shearer 《Journal of the American Veterinary Medical Association》1990,196(6):865-869

Three commercial tests that measure progesterone content in milk were evaluated for accuracy of estrus detection. The tests were evaluated on 96 milk samples collected from Holstein cows at a commercial dairy farm in central Florida. The test results were compared with the results of radioimmunoassay on the same sample. Comparisons were made by calculating the sensitivities, specificities, and predictive values. The significance of the statistical association between the tests and the radioimmunoassay was evaluated by use of the McNemar chi 2 test. Decision-tree analysis was used to determine the most useful testing strategy, considering both cost and accuracy. The cowside progesterone assay on estrus-mount detector-positive cows was more profitable than use of estrus-mount patches alone. The return on investment was higher with the cowside test, making it preferred as a field test for detecting estrus.  相似文献   

Experimental immune complex glomerulonephritis and the nephrotic syndrome in cats immunised with cationised bovine serum albumin     

A S Nash  N A Mohammed  N G Wright 《Research in veterinary science》1990,49(3):370-372

Membranous nephropathy was induced in four cats by repeated intravenous injections of 120 mg cationic bovine serum albumin (BSA, pI 9.5). All four cats developed diffuse granular deposits of IgG and C3 along the glomerular capillary walls as early as five weeks which persisted until the end of the experiment at 17 weeks. Ultrastructural studies revealed many subepithelial electron dense deposits. Two cats developed severe proteinuria and the nephrotic syndrome characterised by hypoalbuminaemia and oedema. An additional four cats received repeated injections of unmodified native BSA (pI 4.5) and remained basically normal. This is the first report of membranous nephropathy and the nephrotic syndrome in an experimental animal model which, unlike other animal models, is subject to the spontaneously occurring disease.  相似文献