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51.
Summary Various cardiorespiratory and metabolic indices were assessed during treadmill exercise in Thoroughbred and Standardbred racehorses with T wave changes in 4 or more leads on the electrocardiogram or second-degree atrio-ventricular (AV) block, and in horses that had no abnormalities on clinical examination, resting electrocardiography or upper respiratory tract endoscopy. No significant differences in heart rate, plasma lactate concentration, arterial blood gases, oxygen uptake, run time, peak velocity, or blood and red cell volumes were found between normal horses and horses with T wave changes or second-degree AV block. These results indicate that some electrocardiographic findings that are considered by some clinicians to indicate cardiac dysfunction, may have little effect on exercise capacity. 相似文献
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S Arnott D W Hukins J Rubin J Brennan M Sundaralingam 《Science (New York, N.Y.)》1972,177(47):451-452
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Hemeralopia in Alaskan Malamute pups 总被引:1,自引:0,他引:1
L F Rubin 《Journal of the American Veterinary Medical Association》1971,158(10):1699-1701
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2005 Guidelines for the diagnosis, prevention and management of heartworm (Dirofilaria immitis) infection in dogs 总被引:2,自引:0,他引:2
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Tomato fruits at the green mature stage were inoculated with a mixed sporangial suspension of A1 and A2 isolates ofPhytophthora infestans. Other fruits were inoculated with either A1 or A2 sporangia. Seeds were extracted from the blighted fruits and sown in soil or on agar media to test for the transmission of
late blight to the emerging seedlings. Only 23 (0.09%) of approximately 25,000 seedlings developed symptoms. All blighted
seedlings originated from fruits inoculated with mixed A1 + A2 sporangia. Isolates ofP. infestans recovered from the emerging blighted seedlings were seemingly of oosporic origin, as they differed phenotypically (mating
type, virulence, sensitivity to metalaxyl) from the parent isolates used to inoculate the fruits. The results suggest that
transmission ofP. infestans might occur by seeds extracted from fruits carrying oospores and less probably by seeds extracted from fruits having no oospores.
http://www.phytoparasitica.org posting April 30, 2004. 相似文献