Electrocardiographic Observation on Spontaneously Occurring Arrhythmias in Chickens

Journal of Veterinary Medical Science

Akio AMADA¹  Shin MUKAI¹  Noboru MACHIDA¹  Keiji KIRYU¹  Masaaki NISHIMURA¹  Takashi NAKAMURA¹ 

关键词: arrhythmia;    chicken;    electrocardiography;    Rhode Island Red;    ventricular preexcitation syndrome;   

DOI  :  10.1292/jvms.58.10_953

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(29)Cited-By(3)In order to clarify the spontaneous occurrence of arrhythmias in chickens, electrocardiograms using standard bipolar limb leads were recorded for 461 chickens of 7 breeds, including 3 pure breeds: Rhode Island Red (RIR, n=125), Japanese Game (JG, n=101), and White Leghom (WL, n=52); and 4 crossbreeds of RIR: the first filial generation (F1) obtained by mating RIR with JG (RIR×JG, n=44), the backcross obtained by mating the F1 of RlR×JG with the parental JG ((RIR×JG)×JG, n=10), the F1 obtained by mating RIR with WL (RIR×WL, n=73), and the F1 obtained by mating RIR with the commercial hybrid chicken, Dekalb Amber Link (DAL)(RIR×DAL, n=56). Nine types of arrhythmias were observed in 107 chickens (23.2%, 107/461): 66 had sinus arrhythmia, 19 had atrial premature contraction, 9 had ventricular preexcitation syndrome, 7 had ventricular premature contraction, 2 had second-degree atrioventricular block, 1 had atrial fibrillation, 1 had aberrant ventricular conduction, 1 had intraventricular conduction disturbance, and 1 had ventricular electrical alternans. Except for sinus arrhythmia, the incidence of other arrhythmias in RIR was significantly high, compared with that in pure breeds other than RIR (p<0.001) and that in crossbreeds of RIR (p<0.01). Arrhythmias other than ventricular premature contraction and sinus arrhythmia will be the first to be described as spontaneously occurring arrhythmias in chicken. Although the reason for both the highest incidence of sinus arrhythmia in WL and the predominance of other arrhythmias in RIR were obscure, the present results suggest the possibility of using chickens, especially RIR which shows a high incidence of arrhythmias, as a relevant animal for studying arrhythmias.

【 授权许可】

Unknown