鸡胚胎心率侵入性与非侵入性测定方法的比较。

Comparisons between invasive and noninvasive determinations of embryonic heart rate in chickens.

作者信息

Haque M A, Watanabe W, Ono H, Sakamoto Y, Tazawa H

机构信息

Department of Electrical and Electronic Engineering, Muroran Institute of Technology, Japan.

出版信息

Comp Biochem Physiol Comp Physiol. 1994 Jun-Jul;108(2-3):221-7. doi: 10.1016/0300-9629(94)90088-4.

DOI:10.1016/0300-9629(94)90088-4

PMID:7914855

Abstract

The embryonic heart rate (HR) of chicken eggs was determined by ballistocardiography, electrocardiography, impedance-cardiography and acoustocardiography. The effects of these different methods on the HR were examined for young (12-day-old) and late (16- and 18-day-old) embryos. Ballistocardiography is a non-invasive method. Nevertheless, the mean HRs determined using this method at 5-hr intervals were significantly different in many embryos. This difference was caused by the natural variability of embryonic HR. The statistical analyses indicated that any of these four methods did not influence the HR measurement and can be used as a simple means for determination of the embryonic HR.

摘要

通过心冲击图描记法、心电图描记法、阻抗心动描记法和心音图描记法测定了鸡蛋胚胎的心率（HR）。针对早期（12日龄）和晚期（16日龄和18日龄）胚胎，研究了这些不同方法对心率的影响。心冲击图描记法是一种非侵入性方法。然而，在许多胚胎中，使用该方法每隔5小时测定的平均心率存在显著差异。这种差异是由胚胎心率的自然变异性引起的。统计分析表明，这四种方法中的任何一种都不会影响心率测量，均可作为测定胚胎心率的简单方法。