Chick Development
Chick Development - Related Videos
07:24
Development of the Chick
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2023
The chicken embryo (Gallus gallus domesticus) provides an economical and accessible model for developmental biology research. Chicks develop rapidly and are amenable to genetic and physiological manipulations, allowing researchers to investigate developmental pathways down to the cell and molecular levels. This video review of chick development begins by describing the process of egg fertilization and formation within the chicken reproductive tract. Next, the most commonly used chick staging...
08:57
In ovo Electroporation in Chick Midbrain for Studying Gene Function in Dopaminergic Neuron Development
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Cited by 5 •
2012
To assess the function and the regulation of genes during the development of midbrain dopaminergic neurons, we describe a method that involves in ovo electroporation of plasmid DNA constructs into embryonic chick ventral midbrain dopaminergic neuron progenitors. This technique can be used to achieve efficient expression of genes of interest to study different aspects of midbrain development and dopaminergic neuron differentiation.
06:42
Basic Chick Care and Maintenance
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2023
Chicks (Gallus gallus domesticus) are a valuable research tool, not only for studying important concepts in vertebrate development, neuroscience, and tumor biology, but also as an efficient system in which to propagate viruses. Although eggs can be purchased from external suppliers and working with chicks requires very little specialized equipment, an understanding of proper handling procedures is required for normal embryo development. This video will provide an overview of egg handling...
06:48
Chick ex ovo Culture
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2023
One strength of the chicken (Gallus gallus domesticus) as a model organism for developmental biology is that the embryo develops outside the female and is easily accessible for experimental manipulation. Many techniques allow scientists to examine chicken embryos inside the eggshell (in ovo), but embryonic access can be limited at later stages of development. Fortunately, chicks can also be cultured ex ovo, or outside of the eggshell. The major advantage to ex ovo culture is greater access to...
07:26
An Introduction to the Chick: Gallus gallus domesticus
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2023
The chicken embryo (Gallus gallus domesticus) is an extremely valuable model organism for research in developmental biology, in part because most of their development takes place within an egg that is incubated outside of the mother. As a result, early developmental stages can be accessed, visualized and manipulated by simply creating a small hole in the eggshell. Since billions of chickens are raised worldwide for meat and egg production, scientists can easily and economically acquire large...
FAQs
Rapid cell division expands the early embryonic cell population, whereas gastrulation reorganizes those cells into germ layers. This reorganization marks a major change from multiplication to structured arrangement. It matters because the germ layers provide the organized developmental foundation that is followed by neurulation and organogenesis, allowing the embryo’s body plan and major organs to emerge in sequence.
During neurulation, the embryo establishes its nervous system and further defines the body plan. This stage is therefore more than a morphological change: it links the earlier reorganization of cells into germ layers with the later formation of major organs. In chick embryos, following this sequence helps researchers relate visible developmental changes to the construction of a vertebrate body.
Organogenesis establishes the embryo’s major organs after earlier stages have organized cells and shaped the body plan. Examining it alongside gastrulation and neurulation lets researchers distinguish when broad cellular organization gives way to recognizable anatomical structures. That staged progression provides a framework for studying how tissue formation contributes to overall vertebrate development.
Extraembryonic membranes support the embryo by providing nutrition, enabling gas exchange, and handling waste removal. These functions operate alongside neurulation and organogenesis, helping sustain the embryo as its nervous system, body plan, and major organs develop. Their contribution demonstrates that embryonic development includes both formation of the embryo itself and coordinated support from surrounding membranes.
An incubated chicken egg provides access to visible embryonic development, so researchers can follow morphological changes as the embryo progresses through its stages. Those observations can be correlated with gene expression, linking what the embryo looks like with underlying biological activity. This makes the system useful for examining tissue formation and signaling pathways in a developing vertebrate.
Chick Development supports questions about how tissues form, how signaling pathways influence development, and how gene expression relates to embryonic morphology. Researchers can use the accessible egg to connect these levels of evidence rather than studying them in isolation. The model also enables comparisons across vertebrate species, extending findings from one embryo to broader developmental biology.