Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Cardiac rhythms in chick embryos during hatching.

H Tazawa1, H Mitsubayashi, M Hirata

  • 1Department of Electrical and Electronic Engineering, Muroran Institute of Technology, Japan. tazawa@muroran-it.ac.jp

Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology
|February 22, 2000
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Designing integrated early-phase protocols to reduce substantial modifications, including considerations for patient cohorts - a multi-stakeholder consensus view for a practical approach in Germany.

Frontiers in pharmacology·2026
Same author

Pearl Index study with levonorgestrel-releasing intravaginal rings: using pharmacokinetic results to investigate treatment compliance as a potential contributor for contraceptive failure.

Human reproduction (Oxford, England)·2020
Same author

OBP-401-GFP telomerase-dependent adenovirus illuminates and kills high-metastatic more effectively than low-metastatic triple-negative breast cancer in vitro.

Cancer gene therapy·2017
Same author

Fc-Gamma Receptor Polymorphisms Predispose Patients to Infectious Complications After Liver Transplantation.

American journal of transplantation : official journal of the American Society of Transplantation and the American Society of Transplant Surgeons·2015
Same author

Color-coding cancer and stromal cells with genetic reporters in a patient-derived orthotopic xenograft (PDOX) model of pancreatic cancer enhances fluorescence-guided surgery.

Cancer gene therapy·2015
Same author

Loss of p53 in stromal fibroblasts enhances tumor cell proliferation through nitric-oxide-mediated cyclooxygenase 2 activation.

Free radical research·2014
Same journal

Energy reserves, rather than body size, are associated with ovarian development in two-year-old female European sea bass (Dicentrarchus labrax L.).

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
Same journal

Integrated nutritional, antimicrobial, and transcriptomic analysis of the caudal gland in Sepiella inermis reveals a specialized bioactive defense organ.

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
Same journal

Disruption of Pik3r1 promotes muscle hyperplasia and lipolysis in grass carp (Ctenopharyngodon idella).

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
Same journal

Methods: Novel use of mitochondrial function to optimize the permeabilization of crustacean gill types.

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
Same journal

Kisspeptin-2 stimulates testicular function in adult pejerrey (Odontesthes bonariensis): Does it act directly on the testes?

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
Same journal

A single GPCR locus in Drosophila melanogaster partitions stress physiology by sex.

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology·2026
See all related articles

Prenatal avian embryos exhibit unique heart rate patterns during external pipping. These include distinct accelerations and respiratory arrhythmia, offering insights into late-stage incubation and perinatal development.

Area of Science:

  • Embryology
  • Physiology
  • Bioacoustics

Background:

  • Avian embryos develop within eggshells, allowing for physiological monitoring like heart rate.
  • Previous research focused on prenatal heart rate fluctuations, but the perinatal period remained understudied.

Purpose of the Study:

  • To review existing methods for measuring avian embryonic heart rate.
  • To investigate novel heart rate fluctuations during the late incubation and perinatal periods.

Main Methods:

  • Review of established methods for detecting cardiogenic signals (noninvasive, semi-invasive, invasive).
  • Analysis of heart rate fluctuations in avian embryos during the external pipping stage.

Main Results:

  • Identified three unique heart rate acceleration patterns during external pipping: irregular intermittent large, short-term repeated large, and long-lasting cyclic small accelerations.

Related Experiment Videos

  • Observed respiratory arrhythmia (1-1.5 s period) appearing during external pipping.
  • Detected additional slow oscillating patterns (10-15 min period) in some externally pipped embryos.

    • Conclusions:

    • The perinatal period in avian embryos is characterized by distinct, complex heart rate dynamics.
    • These findings contribute to understanding avian embryonic development and physiological responses near hatching.