The vest-collar as a rodent collar to prevent licking and scratching during experiments

Author:

Jang Yura12,Park Ye Eun1,Yun Cheol-Won2,Kim Dae-Hyun3,Chung Hesson1

Affiliation:

1. Center for Neuro-Medicine, Korea Institute of Science and Technology, Seoul, Korea

2. School of Life Sciences and Biotechnology, Korea University, Seoul, Korea

3. College of Veterinary Medicine, Konkuk University, Seoul, Korea

Abstract

Various types of restraint collars have been used for research animals, and the Elizabethan collar (E-collar) is the most commonly used. However, animals can be choked by the E-collar or they tend to remove it; furthermore, repeated rubbing and scratching of the collar may chafe the neck. We developed a new restraint collar with a vest to overcome these limitations. The vest-collar (V-collar) can be worn similarly to a vest, in contrast to the E-collar, which is fixed around the neck. A cone-shaped collar is attached to the vest in the V-collar and is made of Eva foam to surround the chest softly, accompanied by a transparent polyvinyl chloride (PVC) film for visibility. To evaluate the performance of the V-collar, we conducted experiments with mice wearing the V-collar and the E-collar. Both groups showed normal weight gain and food intake. Glucose and stress hormone levels showed no significant differences, and no stress-associated leukocyte profiles were observed during the experiments. However, despite the short experimental duration, more than half of the mice in the E-collar group showed injury to the skin on the neck, with increased thickness of the epidermal and keratin layers. Moreover, inflammatory cell counts were higher in the E-collar group than in the V-collar group. In conclusion, the V-collar, in contrast to the E-collar, does not cause skin injuries in animals and is thus beneficial for animals and investigators. Investigators can effectively use the V-collar to enhance laboratory animal welfare.

Publisher

SAGE Publications

Subject

General Veterinary,Animal Science and Zoology

Reference27 articles.

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