Lidoband for Tail Docking in Sheep

At a Glance

Researchers at Colorado State University have developed the Lidoband, a lidocaine-infused rubber ring designed to reduce pain during lamb tail docking. Lambs treated with the Lidoband exhibited reduced behavioral indicators of pain immediately after application and demonstrated greater pressure tolerance near the docking site. Additionally, treated lambs showed lower levels of inflammatory markers, indicating both immediate and short-term welfare benefits. The technology integrates seamlessly into existing practices, offering a practical solution for producers.

Background

Tail docking is a widely used management practice in sheep production to improve hygiene and prevent fly strike, but it is associated with acute pain and stress in lambs when performed with conventional rubber rings. Growing consumers and industry focus on animal welfare has increased pressure to adopt more humane practices without sacrificing efficiency. Existing pain mitigation methods can be labor-intensive or impractical at scale. The Lidoband introduces a novel approach by embedding a local anesthetic directly into the device, addressing welfare concerns while maintaining operational simplicity.

Overview

The Lidoband is an elastic rubber ring impregnated with lidocaine, a fast-acting local anesthetic, which is released at the site of application during tail docking. In controlled studies, lambs treated with the Lidoband were compared to those receiving conventional rubber rings. Behavioral responses, measured using a visual analog scoring system, were significantly reduced at the time of banding in Lidoband-treated lambs. Mechanical nociception testing with an algometer showed increased pressure tolerance below the banding site, indicating reduced sensitivity. Blood biomarker analysis further revealed decreased haptoglobin concentrations in two days post-procedure, demonstrating reduced systemic inflammation. Together, these results highlight both immediate pain relief and sustained physiological benefits.

Figure 1. Lamb behavioral score between CON and LB lambs using a visual analog scoring system. LB lambs had a subdued behavioral response compared to CON lambs at the time of banding (0h). Behavioral responses did not differ at any other timepoints (not presented).

Figure 2. Pressure sensitivity in lambs tail docked by elastration. Pressure thresholds, measured as the force applied with an algometer before a response was elicited, were evaluated in lambs receiving a standard rubber ring (CON; n = 16) or with a lidocaine-impregnated rubber O-ring (LB; n = 16). Measurements were taken 1 cm below band placement (A.), 1 cm above band placement (B.), and at the shoulder as a control site (C). Effects of band type (Band), timepoint (Time), and the interaction (Band*Time) were evaluated and noted when significant (P < 0.05)

Benefits

Reduces acute pain during tail docking
Decreases tissue sensitivity at the docking site
Lowers systemic inflammation markers
Maintains lamb health and growth performance
Easy to implement within existing management systems
Improves animal welfare with no added labor complexity

Applications

Commercial sheep production operations
Livestock welfare assurance programs
Veterinary and husbandry procedures
Precision livestock management systems
Educational and research institutions focused on animal welfare

Publications

C. Cadaret et al. (2025) “Use of a lidocaine impregnated band improved behavioral and physiological indicators of pain during tail docking in lambs.” Journal of Animal Science. https://doi.org/10.1093/jas/skaf281

Last Updated: April 2026

Opportunity

Available for Licensing and Collaboration
TRL: 7

IP Status

Know-How

Inventors

Caitlin Cadaret
Lily Edwards-Callaway

Reference Number

2025-084

Licensing Manager

Steve Foster
Steve.Foster@colostate.edu
970-491-7100