Electrocardiographic parameters in clinically healthy Balouchi sheep

Iranian Journal of Veterinary Science and Technology

مقاله 6، دوره 7، شماره 2، دی 2015، صفحه 84-91   

نوع مقاله: Research Articles

شناسه دیجیتال (DOI): 10.22067/veterinary.v7i2.45439

نویسندگان

Tahmineh Tajik¹؛ Alireza Taghavi razavizade^{* 2}؛ Mohammad Reza Aslani³؛ Javad Tajik⁴

¹Ferdowsi university of mashhad

²ferdowsi university of mashhad

³shahrekord university

⁴Shahid Bahonar University of Kerman, Kerman

چکیده

Electrocardiographic (ECG) parameters and cardiac rhythms have been evaluated and published in different breeds of beef and dairy cattle but there is limited information regarding these parameters in healthy sheep. This study is aimed to investigate the ECG parameters in Balouchi sheep. The ECG parameters including the amplitudes of P, Q, R, S and T waves, duration of P, QRS and T waves and P-R, Q-T and R-R intervals were evaluated in 44 male and female clinically healthy Balouchi sheep in standard and augmented limb leads (I, II, III, AVR, AVL, and AVF) and base-apex lead. The mean heart rate was 89.6 beats/minute which had a significant correlation with age (r=-0.269, p=0.014). Different configurations of P-wave, QRS complex and T wave were observed in different ECG leads. It was found that age and gender affects some ECG parameters. In some leads, rams had significantly higher amplitudes of P, Q, R, S and T waves and longer duration of PRR interval than ewes. Also in some leads, the amplitudes of P, R and S waves were significantly higher and the duration of QRS complex was shorter in sheep less than one year old than sheep with age three years or older. The most common cardiac dysrhythmia observed on the ECG traces was Sinus arrhythmia. Sheep with this dysrhythmia had a significantly lower heart rate (p

کلیدواژه‌ها

Arrhythmia؛ Electrocardiogram؛ Balouchi؛ Sheep

مراجع

Ahmed, J.A., Sanyal, S. (2008) Electrocardiographic studies in Garol sheep and Blanck Bengal goats. Research Journal of Cardiology 1,1-8.

Alidadi, N., Mokhber-Dezfouli, MR., Nadalian, MG., Rezakhani, A., Nouroozian, I. (2002) The ECG of the Turkman horse using the standard lead base apex. Journal of Equine Veterinary Science 22, 182-184.

Dashab, G.R., Aslaminejad, A., Nassiri, M., Esmailizadeh, A.K., Saghi, D.A. (2011) Analysis of genetic diversity and structure of Baluchi Sheep by microsatellite markers. Tropical and Subtropical Agroecosystems14, 10471054.

Deroth, L. (1980) Electrocardiographic parameters in the normal lactating holstein cow. Canadian Veterinary Journal 21, 271-277.

Escudero, A., Gonzalez, J.R., Benedito, J.L., Prieto, F.R., Ayala, I. (2009) Electrocardigraphic parameters in the clinically healthy Zamorano-leones donkey. Research in Veterinary Science 87, 458-461.

Holmes, J.R., Rezakhani, A. (1975) Observations on the T-wave in the equine electrocardiogram. Equine Veterinary Journal 7, 55-62.

Marr, C. (1999) Cardiology of the horse. 1st ed., W. B. Sunders Company. 10-80. Physick-Sheard, P.W., Hendren, C.M. (1983) Heart score: physiological basis and confounding variables. Equine Veterinary Journal 12, 81-84.

Pourjafar, M., Badiei, K., Chalmeh, A.A., Naghib, S.M., Abdolhoseinzadeh, M., Pourmirzaei, H. (2011) Standard electrocardiographic parameters of base apex lead system in different age groups of clinically healthy dromedary camel (Camelus Dromedarius). Journal of Camel Practice and Research 16, 79-82.

Pugh, D.G. (2002). Sheep and Goat Medicine. 1st Ed., United States of America: W.B Saunders Company, London, 394.

Rezakhani, A., Ejtehadi, M. (1980) Some Electrocardiographic Parameters of the Fat-tailed Sheep. Zentralblatt für Veterinärmedizin Reihe A. 27, 152-156.

Rezakhani, A, Papahn, A.A., Shekarfroushan, S. (2004) Analysis of base apex lead electrocardiograms of normal dairy cows. Veterinary Archive 74, 351-358.

Scott, P.R. (2010) Cardiovascular system in Sheep Medicine. Manson Publishing Limited, London, 161-164. Taghavi Razavizadeh AR. Determination of normal electrocardiographic parameters and prevalence of physiologic cardiac arrhythmias in Khuzestan-arab horse [DVSc thesis]. Iran: Shahid Chamran university of Ahvaz; 2007.

Tajik, J., Nazifi, S., Naghib, M., Rowshan Ghasrodashti, A. (2012) Comparison of electrocardiographic parameters and serum electrolytes and microelements between single infection of rotavirus and coronavirus and concurrent infection of Cryptosporidium parvum with rotavirus and coronavirus in diarrheic dairy calves.Comparative Clinical Pathology 21, 241-244.

Torio, R., Cano, M., Montes, A., Prieto, F., Benedito, J.L. (1996) Comparison of two methods for electrocardiographic analysis in Gallega sheep. Small Ruminant Research 24, 239-246.

Tovar, P., Santisteban, R., Porras, A., Vivo, R., Castejon, F.M. (1985) Electrocardiographic analysis of auricular electric systole in the sheep. Revista española de fisiologia 41, 317-324.