ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02513.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02514.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02515.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02516.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02517.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02518.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

SummaryThe effect of physical training on thein vitroactivities of key enzymes that provide quantitative information on the maximum capacities of anaerobic and aerobic metabolism has been investigated in the gluteal muscle of the horse. Training had no effect on the activities of 6‐phosphofructokinase or creatine kinase, suggesting that there was no effect on the capacity of anaerobic metabolism in this muscle. However, the activities of hexokinase and citrate synthase were increased, indicating that training increased the capacity of aerobic metabolism. For comparative purposes, muscle fibre composition and enzyme activities were also determined in a group of foals and a group of broodmare

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02519.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

SummaryM‐mode echocardiography is a safe and practical means of using ultrasound to evaluate the dynamic movements of cardiac structures. The technique can be refined by using a simple contrast medium in the form of carbon dioxide mixed with heparinised blood to provide a strong echogenic result. This technique was employed in a series of 15 normal conscious standing horses and in three animals with specific cardiac defects. In the clinical cases it was possible to confirm the diagnosis and differentiate between a congenital septal defect and mitral regurgitation. The method was found to be safe and relatively simple to perform using percutaneous insertion of catheters. The intracardiac catheterisation was trouble free and no clinical side effects to direct injection of the carbon dioxide contrast medium into the heart were demonstrate

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02520.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02521.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY

摘要:

SummaryThis study was initiated to determine the accuracy of M‐mode echocardiography in measuring left ventricular dimensions and estimating heart weights in horses. Left ventricular free wall and interventricular septal thickness and left ventricular external and internal diameters were measured and heart weights estimated from the echocardiograms of 47 horses. Autopsy measurements of the same parameters were then recorded. Statistical comparison of the data demonstrated: (1) Systolic measurements of wall thickness more closely resembled the heart in death than the diastolic measurements; (2) good correlations existed between parameters measured echocardiographically and at autopsy, especially wall thicknesses and left ventricular external diameter (maximum r = 0.82); (3) heart weight was readily predicted from echocardiographic wall thickness regressions (maximum R‐squared = 68 per cent). M‐mode echocardiography demonstrated the potential for direct and accurate measurements of cardiac mass and some ventricular dimensions in the horse. The data suggested that intense rigor and exsanguination may render the autopsied heart unsatisfactory for comparative measurements when assessing techniques such as echocardiog

ISSN:0425-1644    

DOI:10.1111/j.2042-3306.1985.tb02522.x

出版商:Blackwell Publishing Ltd    

年代:1985

数据来源: WILEY