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مجله تحقیقات دامپزشکی (Journal of Veterinary Research) | ||
Article 5, Volume 60, Issue 4 - Serial Number 1336, February 2006 PDF (533.15 K) | ||
Abstract | ||
Objective: To evaluate the electrocardiography changes in the experimentally induced ascitis in broiler chickens using cold stress as a model. Design: Experimental study. Animals: A total of 300 day-old male Ross 308 broiler chicks. Procedure: Chickens were randomly divided into two equal groups, (control and test). chicks were reared for six weeks. Gradually Temperature was gradually decreased in the test group to 30% of the standard program from 2nd week of the rearing period. At the end of each week, 5 chicks from each group were selected and electrocardiography recordings were performed. Also after autopsy right ventricle I total ventricular weight was measured and recorded. Statistical analysis: t- student Test and Bivariate correlation. Results: There were significant elevation of the S wave amplitudes in 4th week (leads II, III, a VR)and 6th week (lead III) .S wave had a significant correlation with RVJTV in 4th week (lead II) and 5th week (leads II, a VF) in the test group, too. There were also significant increase in the T wave amplitudes in 4th and 5th weeks (leads II, a VF) and 6th week(leads a VF, a VR) in the test group. In this study, R waves did not show a significant variation with the exception of 4th week(lead II). There were an elevation of MEA in test groups (with a right-cranial direction) but it just was significant in 4th week compared with control group. Conclusion: Electrocardiograms can be used effectively to evaluate the development of as cites syndrome in broiler chickens. The increase in the amplitude of S and T waves could be considered as the sign of ventricular hypertrophy in as cites syndrome resulted from cold condition. J.Fac. Vet.Med. Univ. Tehran. 60,4:333-337,2005. | ||
Keywords | ||
Broiler Chickens; electrocardiography waves (R; experimental as cites; s; T); RV/TV ratio | ||
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