鹅亲代群体中异刺线虫感染的流行情况。

Prevalence of Heterakis Infection in Parental Flocks of Geese.

机构信息

Department of Epizootiology and Clinic of Bird and Exotic Animals, Faculty of Veterinary Medicine, Wrocław University of Environmental and Life Sciences, pl. Grunwaldzki 45, Wrocław 50-366, Poland.

出版信息

Avian Dis. 2020 Dec 1;64(4):552-555. doi: 10.1637/0005-2086-64.4.552.

DOI:10.1637/0005-2086-64.4.552

PMID:33647151

Abstract

The prevalence of Heterakis infection in reproductive geese from 56 flocks was investigated between February 2015 and November 2019 by using both anatomopathologic and coproscopic examinations. The nematodes were microscopically examined, and 37.5% (21/56) of the flocks were infected with Heterakis nematodes, mostly with Heterakis dispar (35.7%). In one particular flock, a Heterakis gallinarum infection was noted. In two flocks, Heterakis infection was identified only during coproscopic examination. The infection susceptibility of the geese depended on the bird's age-in the first reproductive season, 50% of the flocks were positive; in the second season, 42% were positive; and in the third season, 30% were positive. The number of nematodes in each necropsied goose varied from 8 to 216 individuals. During the 5 years of epidemiologic analysis, the infection occurrence decreased from 66.7% to 11%.

摘要

2015 年 2 月至 2019 年 11 月，通过解剖病理检查和粪便镜检，调查了 56 群生殖鹅中异刺线虫感染的流行情况。用显微镜检查了这些线虫，结果 37.5%（21/56）的鹅群感染了异刺线虫，其中主要是异刺属的异刺线虫（35.7%）。在一个特定的鹅群中，发现了鸡异刺线虫感染。在两个鹅群中，仅在粪便镜检时才发现异刺线虫感染。鹅的感染易感性取决于鸟类的年龄——在第一个生殖季节，有 50%的鹅群呈阳性；在第二个季节，有 42%的鹅群呈阳性；在第三个季节，有 30%的鹅群呈阳性。每只剖检鹅体内的线虫数量从 8 到 216 条不等。在 5 年的流行病学分析中，感染发生率从 66.7%下降到 11%。