Fielding H R, Fernandes K A, Amulya V R, Belgayer D, Misquita A, Kenny R, Gibson A D, Gamble L, Bronsvoort B M de C, Mellanby R J, Mazeri S
The Epidemiology, Economics and Risk Assessment (EERA) Group, The Roslin Institute and the Royal (Dick) School of Veterinary Studies (R(D)SVS), Easter Bush, Midlothian EH25 9RG, UK.
Worldwide Veterinary Service, Ooty, Tamil Nadu, India.
Prev Vet Med. 2023 Sep;218:105996. doi: 10.1016/j.prevetmed.2023.105996. Epub 2023 Aug 12.
Sterilisation and rabies vaccination programs seek to manage free-roaming domestic dog (Canis familiaris) populations with the aim to reduce inter-species disease transmission and conflicts. As effective, permanent, remotely-administered options are not yet available for sterilisation, and oral vaccination is not yet commonly used; free-roaming dogs are typically captured for these interventions. There is a paucity of information describing how dog capture rates change over time within defined areas following repeated capture efforts. This data is needed to allow efficient dog capture programmes to be developed. Using spatial co-ordinates of dog capture, we characterise where dogs are more likely to be captured in six catch-sterilise-release campaigns, in Goa state, India. Combining capture numbers with population survey data collected in five sites, we document the increasing difficulty of catching entire (non-sterilised) dogs as sterilisation coverage increases and demonstrate how this leads to increased unit costs. Accounting for the extra resources required to capture dogs when sterilisation coverage is high will improve estimation of the resources required to manage free-roaming dog populations and assist in planning the most efficient intervention strategies.
绝育和狂犬病疫苗接种计划旨在管理自由放养的家犬（犬科动物）种群，以减少种间疾病传播和冲突。由于目前尚无有效的、永久性的、可远程管理的绝育方法，且口服疫苗尚未普遍使用，因此通常会捕捉自由放养的狗来进行这些干预措施。关于在特定区域内经过多次捕捉后狗的捕获率如何随时间变化的信息很少。需要这些数据来制定高效的狗捕捉计划。利用狗被捕捉的空间坐标，我们描述了在印度果阿邦的六次捕捉-绝育-放归活动中狗更有可能被捕捉的地点。将捕捉数量与在五个地点收集的种群调查数据相结合，我们记录了随着绝育覆盖率的增加，捕捉完整（未绝育）狗的难度越来越大，并展示了这如何导致单位成本增加。考虑到绝育覆盖率高时捕捉狗所需的额外资源，将有助于更准确地估计管理自由放养家犬种群所需的资源，并协助规划最有效的干预策略。
