Chemical determination of the streptothricin antibiotic nourseothricin     

W R?mer  G Hesse  N Miosga  H Fricke 《Archiv fuer experimentelle veterinaermedizin》1986,40(5):693-698

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Comparison of different diagnostic tools for the detection of Anaplasma phagocytophilum in dogs     

Charlotte Barth  Reinhard K. Straubinger  Elisabeth Müller  Carola Sauter‐Louis  Katrin Hartmann 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2014,43(2):180-184

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Canine urolithiasis: epidemiology and analysis of urinary calculi   总被引：1，自引：0，他引：1  

A. Hesse 《The Journal of small animal practice》1990,31(12):599-604

The incidence of canine urolithiasis was found to lie between 0–5 to 1 per cent of the canine population. Epidemiological and analytical data were collected for 1731 urinary stones, and causal relationships investigated. Calculi were found in 72 breeds. While they were relatively common among dachshunds, dalmatians, cocker spaniels, Pekingese, bassets, poodles, schnauzers and small terrier breeds, urinary stones were relatively rare among German shepherd dogs, boxers, collies, chow chows, old English sheepdogs, spitz and rottweiler breeds. Struvite, which was found in 55-6 per cent of all calculi, proved to be the most common constituent, followed by cystine (22-5 per cent) and ammonium urate (6-6 per cent). Xanthine calculi were rare (six cases), while silicium dioxide calculi were present in only one case. The likelihood of calculi in male animals was twice that of bitches, although the latter were found to be more prone to infection of the urinary tract. Adiposity was present in 29 per cent of all dogs with calculi. The average age of the animals was seven years. In 98-7 per cent of all cases the calculi were found in the lower urinary tract, and surgical removal of the stones was required in 87-5 per cent of cases. The main types of calculi appear among specific breeds, which indicates that a careful breeding programme may help to reduce the frequency of urinary calculi.  相似文献   

THE CONTRIBUTION OF THE CHEMIST TO THE INDUSTRIAL DEVELOPMENT OF THE UNITED STATES     

Hesse BC 《Science (New York, N.Y.)》1915,41(1062):665-675

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Tritrichomonas foetus infection in purebred cats in Germany: prevalence of clinical signs and the role of co-infection with other enteroparasites     

Kuehner KA  Marks SL  Kass PH  Sauter-Louis C  Grahn RA  Barutzki D  Hartmann K 《Journal of Feline Medicine and Surgery》2011,13(4):251-258

The aim of this study was to determine the prevalence of Tritrichomonas foetus infection and associated clinical signs in purebred cats in Germany, to investigate the role of co-infection, and identify determinants of infection. Faecal specimens accompanied by epidemiological questionnaires were scored and collected from 230 purebred cats. Faeces were examined for trichomonads and other enteroparasites. The prevalence of T foetus was 15.7% among cats and 18.5% among catteries. An abnormal faecal score and history of diarrhoea were observed in 64% and 61% of T foetus-positive cats, respectively, and correlated significantly with infection. Co-infection, observed in 36% of T foetus-infected cats, was not associated with diarrhoea. Norwegian Forest cats were infected significantly more often than other breeds. No association was found with any environmental factors. This study demonstrated a high prevalence of symptomatic T foetus infections in purebred cats in Germany. Co-infection with other enteroparasites did not worsen clinical signs of trichomonosis.  相似文献   

Penetration resistance and root growth of oats in tilled and untilled loess soil     

W. Ehlers  U. Köpke  F. Hesse  W. Böhm 《Soil & Tillage Research》1983,3(3):261-275

Penetration resistance, bulk density, soil water content and root growth of oats were intensively studied in a tilled and an untilled grey brown podzolic loess soil. Bulk density and penetration resistance were higher in the top layer of the untilled soil compared with the tilled soil. In the latter, however, a traffic pan existed in the 25–30 cm soil layer which had higher bulk density and penetration resistance than any layer of the untilled soil. Above the traffic pan, rooting density (cm root length per cm³ of soil) was higher but below the pan it was lower than at the same depth in the untilled soil. Root growth was linearly related to penetration resistance. The limiting penetration resistance for root growth was 3.6 MPa in the tilled Ap-horizon but 4.6-5.1 MPa in the untilled Ap-horizon and in the subsoil of both tillage treatments. This difference in the soil strength-root growth relationship is explained by the build up of a continuous pore system in untilled soil, created by earthworms and the roots from preceding crops. These biopores, which occupy < 1% of the soil volume, can be utilized by roots of subsequent crops as passages of comparatively low soil strength. The channeling of bulk soil may counteract the possible root restricting effect of an increased soil strength which is frequently observed in the zero tillage system.  相似文献   

Simplified N fertilization strategies for winter wheat. Part 1: plants: compensation capacity of modern wheat varieties     

Thomas Makary  Rudolf Schulz  Torsten Müller  Carola Pekrun 《Archives of Agronomy and Soil Science》2020,66(6):847-857

ABSTRACT

Winter wheat in northwestern Europe is often fertilized with several doses of calcium-ammonium-nitrate (CAN). For economy, farmers fertilize using a combination of N-doses. Here, we examined the necessity of N splitting (1–3) and application timing in experiments conducted in 2010 using a one-factorial fully randomized block design, and in 2011–2012 using a two-factorial split-plot design (four replicates). The study site, in southwestern Germany, had silty loam soil, and modern cultivars (2010: one cultivar, 2011–2012: three cultivars) with different genetic abilities to develop the yield components of interest were tested. A late first or single N application at stage BBCH 29/31 did not lead to differences in grain yields or protein contents compared to three N applications. However, a single N application at stage BBCH 25/27 resulted in a reduced protein content. Yield component development did not significantly differ among the cultivars. Early N application increased plant density but not yield. In two years, low plant densities were compensated by higher numbers of kernels per spike. Hence, under the tested conditions, the number of N applications could be reduced, as the high compensation ability of modern cultivars allows N fertilization consisting of two or even one application.  相似文献   

Effects of bovine parainfluenza-3 virus on phagocytosis and phagosome-lysosome fusion of cultured bovine alveolar macrophages   总被引：1，自引：0，他引：1  

R A Hesse  T E Toth 《American journal of veterinary research》1983,44(10):1901-1907

Bovine parainfluenza-3 virus (PI-3V) replicated in cultured bovine alveolar macrophages (BAM) in vitro. Cytopathic changes included spindle cell and giant cell formation, diffuse cell lysis, and cellular detachment progressing to total destruction of the monolayer. Direct immunofluorescent microscopy revealed viral antigen in greater than 90% of BAM on post-inoculation day (PID) 3. Virus titers in culture supernatants increased by a factor of 1.6 X 10(6) TCID50 by PID 6. Candida glabrata was phagocytized by a similar proportion of glass-adherent PI-3V-infected and sham-inoculated control BAM. However, when the number of glass-adherent cells available for assay was taken into account (normalization), the percentage of phagocytic PI-3V-infected BAM was significantly lower than that of the control cells at PID 5 and 7 (P less than 0.01). Phagosome-lysosome fusion assays had a marked reduction of fusion activity in PI-3V-infected BAM as compared with that of control BAM. Proportions of infected cells that showed fusion were approximately 50% of that of the control cells at PID 4 and 6 (P less than 0.05). Normalization of these values reduced the fusion rate of PI-3V-infected BAM to 34% of that of control BAM (P less than 0.01).  相似文献   

The effect of 4 storage treatments on seed yield components of 3 onion inbreds     

P.S. Hesse  G. Vest  S. Honma 《Scientia Horticulturae》1979,11(3):207-215

Onion bulbs of 3 inbred lines were stored during the winter in 4 different storage temperature regimes. Traits directly and indirectly associated with seed production were studied the following summers. The inbred lines differed in their responses and many traits were affected by the storage treatments. The storage treatment of 10°C for 12 weeks followed by 2° C for 12 weeks resulted in a significantly higher seed yield than did storage at 2° C throughout the entire period. Inbred 2399 had a higher seed yield than the other inbreds. Associated with high seed yields of 2399 was early flowering, a high number of leaves/bulb, tall seed stalks and a high number of florets/bulb.  相似文献   

Diagnostic accuracy of the Rivalta test for feline infectious peritonitis     

Yvonne Fischer  Carola Sauter‐Louis  Katrin Hartmann 《Veterinary clinical pathology / American Society for Veterinary Clinical Pathology》2012,41(4):558-567

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