A goose head holder device for chronic experiments

Area of Science:

• Veterinary Science
• Neuroscience
• Surgical Instrumentation

Background:

• Investigating the avian central nervous system (CNS) requires precise stereotaxic techniques.
• Traditional stereotaxic methods often involve anesthesia or invasive restraints, which can affect experimental outcomes and bird welfare.
• There is a need for less invasive and more comfortable methods for chronic CNS studies in geese.

Purpose of the Study:

• To describe a novel device for performing chronic, non-anesthetized experiments in geese.
• To present a stereotaxic system that minimizes discomfort and stress for the birds.
• To facilitate advanced research on the goose central nervous system.

Main Methods:

• A two-part device was designed: one component fixed to the stereotaxic apparatus and the other implanted on the goose's skull.
• The system eliminates the need for ear bars, eye pieces, and bill pieces, reducing invasiveness.
• The device ensures the animal's position remains constant relative to stereotaxic coordinates.

Main Results:

• The described device allows for experiments on chronic, non-anesthetized geese.
• The adaptation was well-tolerated by the birds, indicating minimal stress and discomfort.
• The stereotaxic positioning of the animal was maintained throughout the experimental setup.

Conclusions:

• This novel device offers a significant advancement for studying the avian central nervous system.
• The non-painful and well-tolerated method enhances animal welfare during stereotaxic procedures.
• The technique provides a valuable tool for future neurobiological investigations in geese.