巴西羊群背侧热坏死

IF 0.8 4区 农林科学 Q3 VETERINARY SCIENCES
Telma S. Lima, Silvio M.C. Fonseca, Givaldo B. Silva Filho, João Paulo G. Silva, Mayra S.M. Tenório, Ricardo B. Lucena, Elizandra T. Melo, Fábio S. Mendonça
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引用次数: 0

摘要

摘要:热烧伤在世界范围内的小型反刍动物中非常罕见,在巴西也没有这种情况的描述。在此,我们描述了巴西东北部阿拉戈斯州森林地带博卡达马塔市一群羊背部热坏死的爆发。从羊群中分离12只母羊进行一般临床检查,并评估血清尿素、肌酐、γ -谷氨酰转移酶和天冬氨酸转氨酶水平。此外,对两只严重感染的羊进行了皮肤和肝脏活检。这群羊在半集约管理的牧场饲养,没有遮阳,每天接受大约8小时的日晒,出现了严重的皮炎,并演变为背部皮肤的严重坏死。总的来说,这些病变仅在黑羊的背部皮肤中观察到,而白色背部皮肤区域的羊不受影响。镜下,绵羊表皮和真皮深层表现为弥漫性凝固性坏死、色素失禁和角化不全性角化过度。背侧热坏死只发生在黑羊的背侧皮肤,由于紫外线辐射的积累而过度暴露在阳光下。病变的分布仅限于皮肤背侧区域,这是这些病例中重要的临床病理方面,可以帮助区分光敏引起的病变,因为它们通常涉及其他解剖部位。据作者所知,这是巴西绵羊背部热坏死的第一份报告。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dorsal thermal necrosis in a Brazilian sheep flock
ABSTRACT: Thermal burn injuries are very uncommon occurrences in small ruminants worldwide, and in Brazil, there are no descriptions of this condition. Herein we describe an outbreak of dorsal thermal necrosis in a flock of sheep in the municipality of Boca da Mata, in the Forest Zone of the State of Alagoas, Northeastern Brazil. Twelve ewes were separated from the flock for a general clinical examination and evaluation the serum levels of urea, creatinine, gamma-glutamyltransferase, and aspartate aminotransferase. In addition, biopsies of the skin and liver were performed on two severely affected sheep. The flock was raised in semi-intensively management in a pasture area without shading and receiving approximately eight hours of insolation daily and developed severe dermatitis that evolved to severe necrosis of the dorsal skin. Grossly, these lesions were only observed in the dorsal skin of black sheep, while sheep with white dorsal areas of skin were not affected. Microscopically, the epidermis and deep dermis of affected sheep showed diffuse coagulative necrosis, pigmentary incontinence, and parakeratotic hyperkeratosis. Dorsal thermal necrosis occurs only in the dorsal skin of black sheep in situations of excessive exposure to sunlight due to the accumulation of ultraviolet radiation. The distribution of the lesions, restricted to the dorsal area of the skin, is an important clinicopathological aspect in these cases that can help differentiate lesions caused by photosensitization, as they usually involve other anatomical sites. To the authors’ knowledge, this is the first report of dorsal thermal necrosis in sheep in Brazil.
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来源期刊
Pesquisa Veterinaria Brasileira
Pesquisa Veterinaria Brasileira 农林科学-兽医学
CiteScore
1.30
自引率
16.70%
发文量
41
审稿时长
9-18 weeks
期刊介绍: Pesquisa Veterinária Brasileira - Brazilian Journal of Veterinary Research (http://www.pvb.com.br), edited by the Brazilian College of Animal Pathology in partnership with the Brazilian Agricultural Research Organization (Embrapa) and in collaboration with other veterinary scientific associations, publishes original papers on animal diseases and related subjects. Critical review articles should be written in support of original investigation. The editors assume that papers submitted are not being considered for publication in other journals and do not contain material which has already been published. Submitted papers are peer reviewed. The abbreviated title of Pesquisa Veterinária Brasileira is Pesqui. Vet. Bras.
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