排序方式： 共有4条查询结果，搜索用时 0 毫秒
1
1.
2.
L. M. Martin B. C. Jochems J. C. Lattimer P. J. Johnson D. D. Whelchel 《Equine Veterinary Education》2019,31(5):260-263
A 17-year-old Egyptian Arabian stallion was presented for haematuria and blood clots in the urine of 4 days’ duration. During micturition, haematuria was noted mid-stream with passage of blood clots occurring at the end of urination. Physical examination findings were unremarkable aside from pale mucous membranes. Cystoscopic examination revealed intermittent passage of frank blood (with clots) from the left ureteral orifice compared to grossly normal-appearing urine issuing from the right ureteral orifice. Transcutaneous ultrasonographic evaluation of the right kidney yielded normal findings while the left kidney exhibited pyelectasia, a decreased cortico-medullary ratio, and markedly increased echogenicity of the renal pelvis. Diagnosis of idiopathic renal haematuria was confirmed at necropsy. 相似文献
3.
J M Kazadi J Van Hees M Jochems P Kageruka 《Revue d'élevage et de médecine vétérinaire des pays tropicaux》1991,44(4):437-442
A total of 440 teneral Glossina palpalis gambiensis received one single bloodmeal on a guinea pig infected chronically with Trypanosoma brucei brucei EATRO 1125. Metacyclic infections were present in 11.29% of the flies, in 2.32% infections were limited to procyclical stages. No significant difference in vectorial capacity was observed between male and female flies, the level of metacyclic infections being 13.19% in the former and 9.55% in the latter. The parasitaemia level, the percentage of stumpy forms at the moment of the blood meal and the maintenance conditions of the flies seemed to influence the infection of the flies. 相似文献
4.
Van Vuurde J. W. L. Franken A. A. J. M. Birnbaum Y. Jochems G. 《European journal of plant pathology / European Foundation for Plant Pathology》1991,97(4):233-244
Routine laboratory testing of 710 bean seed lots from various origins forPseudomonas syringae pv. phaseolicola (Psp) with immunofluorescence microscopy (IF) showed that 27.5% of the seed lots (five subsamples of 1000 seeds tested per sample) contained two or more IF-positive cells in a total of 500 microscope fields (magnification 500×). Simultaneously performed dilution-platings of IF-positive subsamples on King's medium B confirmed presence of Psp for one-third of these IF-positive seed lots. The grey area of disagreement between both laboratory tests was studied by comparison of test data and by field trials.The number of IF-positive cells per subsample was positively correlated with isolation and identification of Psp (R=0.85). The detection level of IF was ca. 102 Psp cells per ml of undiluted subsample extract. The detection level of Psp by isolation on King's medium B was variable, being inversely related with the saprophyte to Psp ratio. The high sensitivity of IF was in part due to high percentages of dormant or dead IF-positive cells in the sample extract. Field trials over two years with 10 000 seeds per seed lot, showed disease incidence for 9 of the 22 seed lots. Of ten IF-positive lots with five positive subsamples per sample, nine were positive in the field test plot (the negative lot gave primary infection spots of Psp when used for commercial growing). By isolation, seven of these ten IF-positive lots were positive. Of the five IF-positive lots with two or less positive subsamples, isolation and field trial were both negative. Based on data on seed transmission from literature, field incidence was unlikely for these five samples in a 10 000 seeds field trial. All seven IF-negative lots were negative in the field trial. The value of IF and isolation for indexing bean seed lots for Psp is discussed.This study was carried out at the Centre for Plant Breeding and Reproduction Research (CPRO-DLO), Binnenhaven 1, P.O. Box 16, 6700 AA Wageningen the Netherlands, to which address correspondence should be addressed. 相似文献
1