Laboratory animals are essential to life science research and drug development, and the accuracy of their identification management directly affects the reliability and reproducibility of experimental data. From animal identification, cage labeling, and feed batch records to tissue sample tracking, every step places strict demands on label performance. BRD BradyLAB has launched a full series of laboratory animal labeling solutions tailored to the special environments of laboratory animal facilities.
1. Special Requirements for Laboratory Animal Labels
Unlike ordinary laboratory labels, laboratory animal labels must keep identification intact under the following special conditions:
Disinfectant resistance: SPF animal rooms are regularly disinfected with peracetic acid, hydrogen peroxide, benzalkonium bromide, and other disinfectants. Labels must withstand chemical corrosion without fading or blurring of printed information.
Autoclave resistance: Feed bags, bedding bags, and cages must undergo 121 °C/20 min steam autoclaving before entering animal rooms. The label's heat resistance and moisture resistance during this process are critical.
Low-temperature freezing resistance: Animal tissues, embryos, sperm, and other samples are often stored in -80 °C freezers or -196 °C LN₂. Labels must maintain adhesion and information readability at extremely low temperatures.
Alcohol wipe resistance: Animal experiment benches and cages are commonly wiped with 75% alcohol. Label surfaces must not dissolve or blur upon alcohol contact.
2. BRD BradyLAB Laboratory Animal Label Product Series
Cage identification labels: Chemical-resistant PET face stock combined with strong-adhesion acrylic adhesive, resistant to peracetic acid and hydrogen peroxide disinfection environments. The label surface is specially coated so that printed information remains clearly legible even after repeated 75% alcohol wiping. Suitable for mouse/rat IVC cages, rabbit cages, dog cages, and other housing equipment.
Animal numbering labels: Miniaturized design, suitable for application to ear tags, collars, or cage cards. Supports 1D barcode and 2D code printing, and can interface with animal experiment management system data for electronic tracking of individual animal information.
Feed/bedding batch labels: Resistant to high-temperature steam autoclaving, no adhesive failure or deformation in 121 °C saturated steam. Used for autoclaving batch identification on feed bags and bedding bags to ensure traceability of feed and bedding.
Tissue sample labels: The Lab series cryogenic labels are suitable for low-temperature storage identification of animal tissues, blood, embryos, and other samples. Resistant to -196 °C LN₂ immersion and repeated freeze–thaw cycles, ideal for transgenic animal colony preservation and animal model sample management.
3. Typical Applications
SPF laboratory animal centers: In Class 10,000/1,000 cleanroom environments, full coverage of cage identification, animal numbering, and feed batch management; labels resist disinfection and high-temperature autoclaving, meeting strict biosafety requirements.
Drug safety evaluation centers (GLP laboratories): Compliant with GLP data integrity requirements, label information is traceable throughout the entire process, ensuring the authenticity and completeness of animal experiment data.
Transgenic animal laboratories: Comprehensive identification and traceability solutions for animal genotype labeling, breeding records, and cryopreserved embryo/sperm identification, supporting transgenic animal strain management.
University laboratory animal centers: Classification labeling and management for multi-group, multi-strain animals, with batch label printing support to reduce daily identification management costs.
4. Label Selection Guide
| Application | Recommended Material | Temperature Range | Key Features |
|---|---|---|---|
| Cage identification (disinfection environment) | PET + chemical-resistant coating | -40 °C to +100 °C | Resistant to peracetic acid/alcohol/hydrogen peroxide |
| Feed bag autoclaving identification | PET/PP | -40 °C to +121 °C | Resistant to steam autoclaving |
| Animal tissue cryopreservation | PET + cryogenic adhesive | -196 °C to +100 °C | Resistant to LN₂/repeated freeze–thaw |
| Ear tag/collar identification | Flexible PP | -40 °C to +80 °C | Flex-resistant/moisture-resistant |
| Routine animal numbering | PP/synthetic paper | -20 °C to +60 °C | Cost-effective/clear printing |
5. Recommended Identification Management Practices for Laboratory Animal Facilities
Coding system: A hierarchical coding system of "facility number + room number + rack number + cage position number" is recommended to ensure the location information of each animal is traceable. Combined with laboratory animal management software, automatic linking of animal information and experimental data can be achieved.
Label printing: Resin-based thermal-transfer ribbon printing is recommended, with print resolution ≥300 dpi and barcode grade ≥B. After printing, abrasion resistance testing and disinfectant resistance testing are recommended to confirm label quality meets usage requirements.
Regular inspection: A quarterly integrity inspection of labels in use is recommended. Labels with blurred text or lifted edges should be replaced promptly to avoid identification failure leading to loss of experimental data.
BRD BradyLAB provides free sample testing and printing compatibility guidance for laboratory animal facilities to help users select the most suitable labeling solution. For more information or to request samples, please contact the BRD BradyLAB technical team.
Related Compliance Standards
Laboratory animal identification management should take into account the facility environment requirements of GB 14925-2010 "Laboratory Animals—Environment and Facilities" as well as the specimen identification traceability specifications of ISO 20387:2018; label durability under cleaning, disinfection, and low-temperature storage conditions can be verified by reference to the peel strength method in GB/T 2792-2014.
Recommended Products
For the label materials and applications covered in this article, the following BradyLAB (BRD) products are available for selection reference (click to view specifications and request a quote):
- Lab058-329/100x100mm sample bank cryovial—off-white cryogenic LN₂ polyester label BRD BradyLAB (Request a Quote)
- T419 sample bank -80 °C cryogenic gloss polyester PET cryovial freezer refrigerated low-temperature label BRD BradyLAB (Request a Quote)
- T439 sample bank -80 °C LN₂ polyester PET freezer cryogenic LN₂ color label sticker laboratory sampling (Request a Quote)
- Lab147-629/34x22mm sample bank cryovial microscope slide -196 °C LN₂ nylon low-temperature label (Request a Quote)
FAQ
Q: What environments must laboratory animal labels withstand?
They must withstand cage cleaning and disinfection (steam autoclaving or chemical disinfection), low-temperature cryopreservation, and animal scratching and biting. Label face stock and adhesive must provide water resistance, disinfectant resistance, and low-temperature resistance.
Q: Are 1D barcodes or 2D codes more suitable for animal identification?
2D codes are recommended for cage and sample labels due to their large information capacity and high error tolerance; combined with ISO/IEC 15415 grade requirements, they can significantly reduce scan failure rates.
Q: How can label information interface with laboratory information systems?
It is recommended to print both a barcode and a human-readable number on the label: the barcode for scanning into LIMS and the human-readable number for manual verification, providing dual assurance of data accuracy.
Compliance Requirements for Laboratory Animal Identification
Laboratory animal management is subject to strict regulatory and standards requirements. Laboratory animal identification must comply with animal welfare and management requirements in standards such as GB 14925-2010 (Laboratory Animals—Environment and Facilities). Labels should be clear and durable, with traceable information, and must not interfere with animal welfare.
| Identification Method | Application | Features |
|---|---|---|
| Ear tag/ear number | Individual rodents and large animals | Intuitive, durable |
| Cage card label | Racks, housing units | Batch management, disinfectant-resistant |
| Cryovial label | Tissue/blood samples | Low-temperature resistant, traceable |
| 2D code label | Digital management | Fast scan verification |
Environmental Resistance Requirements for Laboratory Animal Labels
Laboratory animal housing environments often require disinfection (e.g., chlorine-based disinfectants, peracetic acid) and cleaning; labels must withstand disinfectant wiping and humid environments. Labels used for sample cryopreservation must also be low-temperature resistant. During selection, three performance aspects should be verified: chemical resistance, moisture resistance, and low-temperature durability, ensuring animal individual and sample identification remain clearly legible throughout the entire housing cycle.
Identification and Experimental Data Traceability
Standardized animal identification is a prerequisite for experimental data traceability. By uniformly coding animal numbers, experimental groups, operation records, and sample numbers and binding them via barcode scanning, the risk of data mismatch can be significantly reduced, providing a foundational safeguard for the integrity and reproducibility of research data.