Non-invasive determination of heart rate in newly hatched chicks

H. Tazawa; M. Takami; K. Kobayashi; J. Hasegawa; A. Ar

doi:10.1080/00071669208417553

Non-invasive determination of heart rate in newly hatched chicks

H. Tazawa, M. Takami, K. Kobayashi, J. Hasegawa, A. Ar

School of Zoology

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

1. Using a flexible piezoelectric probe, we detected non-invasively the cardiogenic precordial movements of domestic fowl chicks and measured heart rate (HR) daily over the first week after hatching (day 0) for comparison with previously measured embryonic HR. 2. HR of the hatchlings was much more variable than embryonic HR. The mean HR at a given age also varied among the 5 chicks measured. 3. The overall mean HR was 280 ± 20 (SD, n = 5) bpm on day 0. This value was similar to the prepipping HR and lower than that of externally pipped embryos. It increased to 342 ± 39 bpm 3 days later.

Original language	English
Pages (from-to)	1111-1118
Number of pages	8
Journal	British Poultry Science
Volume	33
Issue number	5
DOIs	https://doi.org/10.1080/00071669208417553
State	Published - 1 Dec 1992

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N2 - 1. Using a flexible piezoelectric probe, we detected non-invasively the cardiogenic precordial movements of domestic fowl chicks and measured heart rate (HR) daily over the first week after hatching (day 0) for comparison with previously measured embryonic HR. 2. HR of the hatchlings was much more variable than embryonic HR. The mean HR at a given age also varied among the 5 chicks measured. 3. The overall mean HR was 280 ± 20 (SD, n = 5) bpm on day 0. This value was similar to the prepipping HR and lower than that of externally pipped embryos. It increased to 342 ± 39 bpm 3 days later.

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Non-invasive determination of heart rate in newly hatched chicks

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