author(s)
Anil Singh, RP Pandey, Gulshan Kumar, Prabha Sharma and Raveendra Tadagani

abstract
Pulsed Doppler echocardiography of tricuspid and bicuspid flow is used to evaluate the diastolic filling non-invasively. Evaluation of intracardiac blood flow requires reference value which are poorly documented in sheep. The aim of the study was to establish the reference value of pulse wave measurement in healthy Muzaffarnagari sheep. The present study was conducted on twelve apparently healthy Muzaffarnagari sheep free from cardiothoracic diseases and allocated to two groups of 6 each order to establish the standard values (range) for parameters of the heart. The measured mean±S.E values of body weight and age were 17.83 ± 0.70 (10-20) kg, 4.67 ± 0.33(3-6) month and 37.58 ± 0.66(25-40) kg, 13.83 ± 0.40(12-15) month in animals of the groups-I and II, respectively. Doppler imaging allows evaluation of blood flow patterns and velocity, permitting documentation and quantification of valvular insufficiency or stenosis and cardiac shunts (Murat and Alkan, 2005) ^[1]. Concluding, Pulsed Doppler echocardiography allows measurement of intracardiac blood flow indices in sheep. The established reference values will help in interpreting these indices of cardiac function in clinical cardiac cases and sheep is used as an animal models in cardiovascular research in humans.