Pathology and immunohistochemical findings of west nile virus infection in psittaciformes     

Palmieri C  Franca M  Uzal F  Anderson M  Barr B  Woods L  Moore J  Woolcock P  Shivaprasad HL 《Veterinary pathology》2011,48(5):975-984

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机电设备安装运行的异常现象及对策   总被引：1，自引：0，他引：1  

法书学 《湖南农机》2011,38(1):100-101

目前,由于国产设备的技术水平和加工水平,与国外的技术设备有较大的差距,关键设备大多引进国外技术设备,其整体及配件价格十分昂贵.为了提高企业经济效益,这就要求机电设备维护人员对设备的一些异常现象,做到分析原因提出解决对策,降低设备故障减少设备维修费用.  相似文献   

An outbreak of listerial myelitis in sheep     

JT SEAMAN  MJ CARRIGAN  FA COCKRAM  GI CARTER 《Australian veterinary journal》1990,67(4):142-143

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Detection ofClostridiue chauvoein in formalin-fixed,paraffin-embedded tissues of sheep by the peroxidase-antiperoxidase (PAP) technique     

L. C. Giraudo Conesa  S. A. Vannelli  F. A. Uzal 《Veterinary research communications》1995,19(6):451-456

A peroxidase-antiperoxidase (PAP) technique was used to detectClostridium chauvoei in tissue sections from sheep inoculated intramuscularly with a pure culture of this microorganism. Samples of various tissues were taken for bacteriology, histopathology and immunohistochemistry. A primary antiserum againstC. chauvoei for use in the PAP technique was produced in rabbits. Formalin-fixed, paraffin-embedded sections of muscle samples were positively and specifically stained by the PAP technique. The results were consistent with those obtained by bacteriology, but the PAP test was simpler, quicker and less expensive than the bacteriological procedures.The use of the PAP technique would be appropriate for detecting clostridial infections without the constraints of conventional identification methods, especially where laboratory conditions for anaerobic procedures are not readily available.Abbreviations HE haematoxylin and eosin - NS normal rabbit serum - P-ab primary antibody - PAP peroxidase-antiperoxidase - PBS phosphate-buffered saline  相似文献   

Long‐term Effects of Pyrethrin and Cyfluthrin,a Type II Synthetic Pyrethroid,Insecticide Applications on Bull Reproductive Parameters          下载免费PDF全文

JL Stewart  CF Shipley  FA Ireland  VL Jarrell  CL Timlin  DW Shike  TL Felix 《Reproduction in domestic animals》2016,51(5):680-687

The objectives of this study were to determine effects of cyfluthrin and pyrethrin spray products, used in combination with cyfluthrin topical and ear tag applications, on bull reproductive parameters over 18 weeks. Angus or Angus x Simmental bulls were randomly assigned to one of three treatment groups: (i) no exposure to pyrethrins/cyfluthrin (CONT; n = 10), (ii) cyfluthrin ear tag and topical applications (ET; n = 10), or (iii) cyfluthrin ear tag, topical, premise spray and pyrethrin fog spray applications (ET+S; n = 8). Bull body weight was measured every 3 week, and body condition score and scrotal circumference were recorded on weeks 0, 9 and 18. Semen and serum were collected every 3 weeks for sperm evaluation and testosterone measurement, respectively. There was a treatment × week interaction (p < 0.01) for sperm with primary defects; bulls in CONT group had a greater (p = 0.01) percentage of sperm with primary defects than bulls treated with insecticides at week 18. Overall and progressive sperm motility, normal sperm morphology, secondary sperm defects and serum testosterone concentrations changed (p < 0.01) over time in all bulls; however, treatment did not affect (p ≥ 0.13) any of these parameters. There were also no treatment effects (p ≥ 0.08) on bull body weight, body condition score or scrotal circumference. The use of pyrethrin‐ and cyfluthrin‐based insecticides, regardless of application, did not negatively affect reproductive parameters in beef bulls when administered over 18 weeks.  相似文献   

积极采取措施加快江西林业三剩物和次小薪材综合利用的步伐     

余小发  曹春林  邓勇 《江西林业科技》2001,(5):46-48

林业三剩物和次小薪材的综合利用，可以减少森林资源的采伐总量，提高其综合利用率，增加林木生产者和综合利用者的收入，还可带动山区经济的发展。应在计划管理、产业结构调整、林业规费减免、税收优惠政策落实等方面采取相应的鼓励措施，以加快综合利用的步伐，从而更好地发挥林业的生态、社会和经济效益。  相似文献   

21世纪上饶封山育林工程     

方彪  梁发良  方良兴 《江西林业科技》2001,(Z1)

从封山育林的理论基础和实践创新出发,阐述了上饶市林业建设的战略目标和经营措施.  相似文献   

杨歧山毛竹枯梢病发生规律及综合防治技术     

姚筱羿  YAO XIAO YI  刘素芬  LIU SU FENG  董月发  DONG YUE FA  何轮  HE LUN  郑伟  ZHENG WEI 《江西林业科技》2001,(6):26-27

毛竹枯梢病的发生与气候和竹林的经营管理水平密切相关。通过实施清除病原，隔断侵染源、钩梢、垦复、施肥、烟剂防治等综合防治技术，使病害发生面积下降了90％，消灭了重度和中度危害区。发病率和感病指数分别下降了94％和85％。  相似文献   

Clostridial enteric infections in pigs.   总被引：1，自引：0，他引：1  

J Glenn Songer  Francisco A Uzal 《Journal of veterinary diagnostic investigation》2005,17(6):528-536

Clostridium perfringens types A and C and Clostridium difficile are the principal enteric clostridial pathogens of swine. History, clinical signs of disease, and gross and microscopic findings form the basis for a presumptive diagnosis of C. perfringens type-C enteritis. Confirmation is based on isolation of large numbers of type-C C. perfringens and/or detection of beta toxin in intestinal contents. Diagnosis of C. perfringens type-A infection, however, remains controversial, mostly because the condition has not been well defined and because type-A organisms and their most important major (alpha) toxin can be found in intestinal contents of healthy and diseased pigs. Isolation of large numbers of C. perfringens type A from intestinal contents, in the absence of other enteric pathogens, is the most reliable criterion on which to base a diagnosis. Recently, beta2 (CPB2) toxin-producing C. perfringens type A has been linked to disease in piglets and other animals. However, implication of CPB2 in pathogenesis of porcine infections is based principally on isolation of C. perfringens carrying cpb2, the gene encoding CPB2, and the specific role of CPB2 in enteric disease of pigs remains to be fully defined. Clostridium difficile can also be a normal inhabitant of the intestine of healthy pigs, and diagnosis of enteric infection with this microorganism is based on detection of its toxins in feces or intestinal contents.  相似文献   

Malignant oedema associated with blood-sampling in sheep     

Morris WE  Uzal FA  Fattorini FR  Terzolo H 《Australian veterinary journal》2002,80(5):280-281

Malignant oedema is a fatal disease of several animal species, produced by one or more members of the Clostridium genus. We report here a case of malignant oedema in a 1-year-old Friesian sheep after a blood sample was collected from the jugular vein. Clostridium septicum and Clostridium sordellii were isolated from the lesions and also demonstrated by a fluorescent antibody test. This report stresses the need for maintaining a clean environment for animals and for strict hygienic measures during procedures that generate wounds, together with immunity acquired by proper vaccination, for prevention of malignant oedema.  相似文献