Tail Snip Sampling
Tail Snip Sampling - Related Videos
02:51
A Mouse Tail Snip Procedure for Peripheral Blood Collection and Plasma Isolation
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2025
In this video, we demonstrate a tail-snipping procedure in a mouse model to collect peripheral blood. The collected blood is subsequently subjected to centrifugation to separate plasma, which can be used for further experiments.
07:11
Sampling Blood from the Lateral Tail Vein of the Rat
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Cited by 82 •
2015
Blood samples are useful for assessing biomarkers of physiological states or disease in vivo. Here we describe the methodology to sample blood from the lateral tail vein in the rat. This method provides rapid samples with minimal pain and invasiveness.
07:26
Isolation of Genomic DNA from Mouse Tails
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Cited by 23 •
2007
10:17
The Tail Suspension Test
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Cited by 534 •
2012
The tail-suspension test is validated as an experimental procedure to assess antidepressant efficacy of drug treatments in mice. Mice are suspended by their tails for six minutes and escape-related behaviors are assessed. We describe procedures used in conducting the tail suspension test.
06:35
Generating Primary Fibroblast Cultures from Mouse Ear and Tail Tissues
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Cited by 95 •
2016
We describe a simple and quick experimental procedure for generating primary fibroblasts from the ears and tails of mice. The procedure does not require special animal training and can be used for the generation of fibroblast cultures from ears stored at RT for up to 10 days.
FAQs
The analytical value comes from collecting cells that retain genomic DNA, the complete genetic material present in the sampled tissue. After extraction, this DNA can serve as the template for targeted amplification or broader sequence analysis. Because the same sample can reveal engineered alleles, genetic traits, or disease-related variants, it links a small tissue collection to genotype-based decisions.
A distal tail sample provides usable cells while limiting the amount of tissue collected. This balance is important in laboratory medicine and biomedical research, where investigators need sufficient genomic material without taking a larger specimen than necessary. The approach therefore supports genotyping and biological analysis while aligning tissue collection with ethical expectations for animal research.
Polymerase chain reaction, or PCR, can analyze the extracted DNA for a specific genetic target, such as an engineered allele. Sequencing can examine the DNA sequence itself to identify genetic variation in greater detail. Choosing between these approaches depends on whether the study requires targeted identification or sequence information about traits and disease-related variants.
Appropriate anesthesia, analgesia, restraint, and ethical oversight are central conditions for this procedure. Anesthesia and analgesia address animal welfare, while suitable restraint supports controlled tissue collection. Oversight ensures that the sampling plan is justified and limited appropriately. Together, these measures help researchers obtain interpretable material while reducing avoidable effects on the animals.
The workflow begins with collecting a small distal tail specimen under the required welfare and oversight conditions. Cells from the tissue then provide genomic DNA for extraction, after which investigators apply PCR or sequencing. The resulting genetic information can identify a trait, engineered allele, or disease-related variant and guide decisions about the animals included in a study.
This approach is useful when investigators must determine which animals carry particular genetic characteristics before an experiment proceeds. Genotyping results can support selection of experimental animals, confirmation that a model has developed as intended, and investigation of inherited disease mechanisms. Its value extends beyond identification because the findings connect animal genotype with the design and interpretation of biomedical research.