Analysis of Electrocardiograms of Tibet Hog

The analysis of electrocardiogram of Tibet hog is used to observe the developing process and compare with the electrocardiogram of human being and Guizhou miniature pig to provide basic data for Tibet hog's experimental animalization.Methods:45 Tibet hogs in conscious were traced fromⅠ,Ⅱ and Ⅲ standard leads and aVR、aVL and aVFunipolar extremity leads with electrocardiogram ECG-9020K.Result:①There was a sinus rhythm in all examined Tibet hogs.②All P waves were erect in Ⅰ,Ⅱ and aVF leads,but inverted in aVR lead,most of it were erect in Ⅲ and aVL leads.③The QRS complex form was qR in Ⅰ lead,qRs and Rs in Ⅱ lead,Rs and qRs in Ⅲ lead,qR、 rsr'and qr in aVL lead,rsr'、Qr and Q in aVR lead,Rs and qRs in aVF lead primarily.④Most of T wave were erect in Ⅰ,Ⅱ,Ⅲ and aVF leads,and inverted in aVL and aVR leads.⑤The duration of various waves and interval:P duration is 68.18 ms±(23.54 ms;)P-R interval is 92.69 ms±20.64 ms;QRS interval is 47.76 ms±13.50 ms;Q-T interval is(225.93) ms±45.03 ms;Q-Tc interval is 225.47 ms±31.23 ms.The character of Tibet hog's electrocardiogram is similar to human being's on the whole,except that its heart rate is faster,and P-R interval,QRS interval,S-T interval and Q-T interval are shorter,and it is similar to GuiZhou miniature pig extremely except that its Q-T interval is shorter.