2022年7月1日 · Trap-neuter-return (TNR) of feral cats was reported as early as the 1950s (Berkeley, 2004), and ear-tipping quickly became an internationally recognized sterilization identifier for cats in TNR programs (Universities Federation for Animal Welfare, 1981, Levy and Wilford, 2013, International City/County Management Association, 2014, Benka, 2015 ...

2023年8月17日 · It is widely agreed that the only way to humanely and sustainably control stray dog populations is by implementing the CNVR method: Catch – Neuter – Vaccinate – Return. For cats specifically, we speak of TNVR: Trap – Neuter – Vaccinate – Return.

This paper describes the development of a tool to assess the welfare of dogs recruited in trap-neuter-release (TNR) programmes and the Italian situation involving the implementation of these programmes. The TNR approach has been proposed as an alternative to long-term sheltering to control the rising population of free-roaming dogs.

2024年2月1日 · In dogs, ear-notching (cutting a chunk out of the ear and then sealing the wound with heat cautery) is the most common way of identifying stray and feral animals that have been vaccinated and surgically sterilized.

2025年2月10日 · TNR為Trap（誘捕），Neuter（結紮），Return（回置）三個英文單詞的縮寫，是一種藉由動物生育控制（Animal Birth Control）來管控流浪貓狗數量並且避免其持續繁殖增加的作法。TNR也是目前唯一被歐美國家證實為最有效、最人道的一種減少流浪貓狗的方式。

Trap–neuter–return (TNR), also known as trap–neuter–release, is a controversial [1][2][3] method that attempts to manage populations of feral cats. The process involves live-trapping the cats, having them neutered, ear-tipped for identification, and, if possible, vaccinated, then releasing them back into the outdoors. [4] .

At Zero Strays Miri, we advocate a practice called Trap, Neuter, and Release(TNR) to reduce the population of stray cats and dogs in the city. Neutered dogs would be given a red collar and a Zero Strays tag as identification, while neutered cats would have their ear tipped.

Trap-neuter-release (TNR) is a dog population management (DPM) concept adopted worldwide for reducing free-roaming dog populations (FRD). Trap-euthanasia (TE) is another concept in which FRDs are humanely trapped and then euthanised. This survey was conducted to determine public preferences between TNR or TE in managing the FRDs in Penang.

Ear notches are not easily visible in long haired dogs and the wounds can be difficult to distinguish from bite wounds and other injuries. Identification of cats. Ear-tipping is a very clear and effective sign to show that a stray/feral cat has been neutered when viewed from a distance.

A marker could be an asset not only to traditional Trap-Neuter-Return (TNR) programs, but also to initiatives using multi-year contraceptives for free-roaming cats. The ear tipping or notching that is currently used to identify surgically sterilized animals would not be humane for animals sterilized without anesthesia.