Deaths due to suspected hypothermia in sheep and alpacas on a Manawatū farm in New Zealand in mid-summer.

IF 1.1 4区农林科学 Q3 VETERINARY SCIENCES

New Zealand veterinary journal Pub Date : 2024-01-01 Epub Date: 2023-09-14 DOI:10.1080/00480169.2023.2251425

A L Ridler, E L Gulliver, F Castillo-Alcala

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引用次数: 0

Abstract

Case history: In mid-summer (February), 42 of a flock of 68 ram hoggets (approximately 5 months of age) and two of a group of 14 alpacas on a farm in the Manawatū region of New Zealand were found recumbent or dead following a period of persistent rain, strong winds and relatively low temperatures. The hoggets and alpacas had been shorn 4 and 53 days previously, respectively, and were in adequate to good body condition with access to ad libitum pasture. Post-mortem and histological examinations were undertaken on four hoggets and two alpacas.

Clinical findings: Apart from hypothermic body temperatures from four recumbent hoggets, nothing of significance was identified on clinical or gross pathological examination. Histological changes of vacuolar hepatopathy, renal tubular degeneration and pulmonary congestion were present in all animals examined.

Diagnosis: Based on the history and clinical and pathological findings, hypothermia was highly probable to have been the cause of the deaths.

Clinical relevance: These cases emphasise the importance of shelter for recently shorn sheep and alpacas regardless of the season.

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仲夏时节，新西兰马纳瓦图农场的绵羊和羊驼疑似因体温过低而死亡。

案例历史：仲夏（2 月），新西兰马纳瓦图地区一家农场的 68 头公猪（约 5 个月大）和 14 头羊驼中，分别有 42 头和 2 头在持续降雨、强风和相对较低的气温后被发现休眠或死亡。这些猪仔和羊驼分别在 4 天和 53 天前被剪毛，身体状况良好，可以自由采食牧草。对四头小猪和两头羊驼进行了尸检和组织学检查：除了四头静卧的猪仔体温过低外，临床或大体病理检查均未发现明显异常。诊断：根据病史、临床和病理检查结果，低体温极有可能是导致这些动物死亡的原因：这些病例强调了无论在什么季节，为刚剪毛的绵羊和羊驼提供庇护所的重要性。

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来源期刊

New Zealand veterinary journal 农林科学-兽医学

CiteScore

3.00

自引率

0.00%

发文量

审稿时长

12-24 weeks

期刊介绍： The New Zealand Veterinary Journal (NZVJ) is an international journal publishing high quality peer-reviewed articles covering all aspects of veterinary science, including clinical practice, animal welfare and animal health. The NZVJ publishes original research findings, clinical communications (including novel case reports and case series), rapid communications, correspondence and review articles, originating from New Zealand and internationally. Topics should be relevant to, but not limited to, New Zealand veterinary and animal science communities, and include the disciplines of infectious disease, medicine, surgery and the health, management and welfare of production and companion animals, horses and New Zealand wildlife. All submissions are expected to meet the highest ethical and welfare standards, as detailed in the Journal’s instructions for authors.

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