The Model Fish Unit
The model fish unit is equipped with recirculation systems tailored for raising zebrafish and medaka, facilitating diverse studies. Furthermore, we provide flow-through systems specifically designed for infection and toxicology studies.
Zebrafish
Danio Rerio
Zebrafish is a tropical fresh-water fish species of the minnow family. Natively widely spread in the Indian peninsula, zebrafish have become increasingly important to scientific research.
Molecular biology, developmental biology, neurobiology, genetics, cancer research, and drug discovery are only the few of the research fields that employ zebrafish as a model animal.
The main reasons for the popularity of zebrafish are the relatively low cost of maintenance, their short generation interval, the transparency of the embryos, and the readily available tools to manipulate the genome.
Medaka
Oryzias Latipes
Japanese medaka (also known as ricefish) are commonly found in ricefields, channels and ditches in East Asia. Medaka are commonly kept as ornamental fish in Japan. They are deeply engrained into Japanese national culture with references going as far back as 17’th century.
Today, medaka are used across the world in vertebrate development and biology studies, as well as toxicology studies. Small size and short life cycle make medaka easy to maintain in a model fish laboratory setting.
Importantly, medaka have a couple of features making them an attractive model fish for salmonid aquaculture studies: (1) they are euryhaline species (lives in fresh water, but can tolerate high salinity) and (2) they tolerate low temperatures.
Why use small model fish?
- Rapid, external development of optically clear embryos
- A lot of eggs are produced in a short amount of time
- Clinically relevant model for human physiology and pathology
- Compliance with 3Rs when exchanging rodent models
- Thousands of transgenic and knock-out lines readily available
- Ethical permit (FOTS) is not required when working with embryos
- Cost-effective husbandry
- Full genome sequence is available
Our Unit
Divided into 5 specialised rooms, our model fish unit can house approximately 10 000 fish.
Two husbandry rooms equipped with state-of-the-art Techniplast systems and automated feeders house either zebrafish or medaka. In addition, the unit includes a quarantine room, an infection room, and a toxicology room, each equipped with stand-alone and flow-through systems.
For specialized studies, we offer a photoperiod rack designed for studying light effects, enabling independent adjustments of intensity and photoperiod duration for different aquarium rows. In addition, our unit holds a specialized behavior room equipped with cutting-edge Daniovision and EthoVision XT systems from Noldus. These systems enable advanced capabilities, such as 3D tracking of fish. Complementing these rooms are two fully-equipped laboratories. The first laboratory is specialized for injection procedures, featuring four state-of-the-art micro-injection systems from Eppendorf. The second laboratory is dedicated for sampling and biological analyses, housing various instruments, including bright-field and fluorescent microscopes.
Our unit goes beyond mere infrastructure; we offer a range of services, including comprehensive training in diverse techniques, such as blood sampling, egg injection, tissue dissection, and imaging. Additionally, we provide expertise in genotyping and the creation of new transgenic lines, ensuring our clients have access to a full spectrum of resources for their research needs.
Our Services
Toxicology studies
Infection studies
Environmental studies
Behavioral analysis
Biological analysis
Transgenesis
Training
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