Sublingual and submandibular blood collection in mice: a comparison of effects on body weight, food consumption and tissue damage

In a large number of animal experiments, blood collection is crucial for achieving the study aim. Requirements on sampling techniques used include their practicability, their effectiveness in terms of obtaining the desired blood volume, sample quality and low impact on animal's wellbeing. Numer...

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Bibliographic Details
Published in:Laboratory animals (London) 2010-10, Vol.44 (4), p.352-358
Main Authors: Heimann, Maike, Roth, Daniel Robert, Ledieu, David, Pfister, Rudolf, Classen, Werner
Format: Article
Language:English
Subjects:
anesthesia
animal experimentation
animal injuries
animal models
animal well-being
Animals
blood glucose
blood proteins
blood sampling
Blood Specimen Collection - adverse effects
Blood Specimen Collection - methods
Blood Specimen Collection - veterinary
body weight
Body Weight - physiology
Eating
erythrocyte count
erythrocytes
feed intake
Female
hematocrit
hemoglobin
Laboratory Animal Science - methods
laboratory animals
Mandible - blood supply
Mandibular Injuries - etiology
methodology
Mice
Mice, Inbred Strains
postoperative complications
retrobulbar blood sampling
Stress, Physiological - physiology
sublingual blood sampling
submandibular blood sampling
tissue repair
Tongue - blood supply
Tongue - injuries
volume
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Summary:In a large number of animal experiments, blood collection is crucial for achieving the study aim. Requirements on sampling techniques used include their practicability, their effectiveness in terms of obtaining the desired blood volume, sample quality and low impact on animal's wellbeing. Numerous methods for blood collection from mice have been published. For large blood volumes, submandibular and sublingual bleeding was developed as alternatives to the retrobulbar bleeding method, which is considered controversial as it results in severe tissue damage. Only a few studies report the use of submandibular and sublingual techniques in mice. In particular, the degree of tissue damage or influence on animal's wellbeing due to submandibular bleeding in conscious mice has not yet been clearly assessed. This gap in the knowledge base has been filled by our exploratory study that revealed clear differences between both techniques. Defence movements during submandibular blood collection in conscious mice resulted in more complications and revealed insufficient blood sample quality due to the prolonged duration of blood collection. In addition, it is likely that these movements may have caused lesions to be more pronounced. Changes in red blood cell parameters (red blood cell count, haemoglobin and haematocrit), in glucose and in total protein concentrations observed in anaesthetized animals were most likely related to anaesthesia. Sublingually punctured mice gained significantly more body weight than submandibularly punctured mice, likely due to less severe tissue lesions and improved healing processes. Based on these results, we recommend the sublingual blood collection technique to be used in mice. However, if the submandibular bleeding technique is used, it should be performed in anaesthetized mice only.
ISSN:0023-6772
1758-1117
DOI:10.1258/la.2010.010011