ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03581.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03583.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03584.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03585.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03586.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

SummaryDynamic compliance, airway resistance, viscous work and respiratory frequency were measured at intervals in horses over 12 h periods. Variation, daily averages and circadian patterns were recorded. Examinations were performed on 24 horses. They were divided into three groups: Normal horses, horses with chronic latent bronchitis and horses with manifest chronic obstructive pulmonary disease (COPD). Significant differences were found between the daily averages and the fluctuations when the normal group and the COPD group were compared. In most cases differences between all three groups were significant. A significant circadian rhythm for airway resistance was detected in diseased horses. It was also established that single measurements give an incomplete picture of lung function. As has been established in humans, analysis of fluctuations in respiratory mechanics may be of diagnostic value. The above results should be taken into account particularly in trials with bronchodilators in horses with COPD.

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03587.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03588.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

SummaryThe results of performing 1720 blood tests for equine cryptorchidism are described. Using the paired sample human chorionic gonadotrophin (hCG) stimulation test and measuring testosterone, 6.7 per cent of tests did not give a clear result. If only the testosterone concentration in the pre‐hCG blood sample was used, this percentage rose to 14 per cent. The paired sample hCG stimulation test was 94.6 per cent accurate. A comparison was made between the paired hCG stimulation test and the measurement of conjugated oestrogen in a single sample. The latter did not give as many doubtfuls but gave false negatives in donkeys of all ages and in horses less than three years old. Measurement of conjugated oestrogen was found to be 96 per cent accurate when donkeys and young horses were excluded. It is, therefore, recommended as a simpler and more reliable test than the paired sample hCG test, but only in the older hors

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03589.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03590.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY

摘要:

SummaryStreptococcus pneumoniaewas isolated from nasopharyngeal swabs and tracheal washings taken from Thoroughbred horses in training at three of four separate stables that were sampled during investigations into respiratory disease. The growth ofStrep pneumoniaein culture was enhanced by an environment enriched with carbon dioxide. In one stable, five of 15 horses that were sampled repeatedly were found to carry the organism for at least four months. There was an apparent association between lower respiratory tract inflammatory disease and heavy growths (106to 108colony forming units/ml) predominantly ofStrep pneumoniaeor of that organism together with large numbers ofStrep zooepidemicusobtained from tracheal washings. Twelve strains ofStrep pneumoniaeisolated from three stables were all of capsule Type 3. Only one strain, which was of capsule Type 9, was isolated from nose and throat swabs taken from 32 staff working in one of the stables and suggested an absence of cross infection between horses and their handlers in this instance.

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1986.tb03591.x

出版商:Blackwell Publishing Ltd    

年代:1986

数据来源: WILEY