Dipartimento di Scienze Agroambientali Chimica e Difesa Vegetale (DiSACD), University of Foggia, Via Napoli 25, 71100, Foggia, Italy.
Parasit Vectors. 2012 May 30;5:104. doi: 10.1186/1756-3305-5-104.
Dermanyssus gallinae (poultry red mite) is a major threat for the poultry industry and is of significant interest for public health. Identification of D. gallinae can be difficult for scientists not familiar with mite morphology and terminology especially when trying to use identification keys. Moreover, this species may easily be confused with another dermanyssoid mite, Ornithonyssus sylviarum (northern fowl mite), which often shares the same hosts and environment.
Specimens of D. gallinae were collected at poultry farms in the Puglia and performed for light and scanning electron microscopy observations, identification and micrographs. Moreover specimens of O. sylviarum were collected separately macerated and mounted on slides for light microscopy observations, identification and pictures.
The micrographs used in this study, based on LM and SEM observations, highlight the following important identifying characters of D. gallinae: the prominent shoulders of the dorsal shield and the jagged edges of the shield reticulations, the position of setae j1, s1 and the epigynal pores, and the presence on tibia IV pl of one seta. Additional micrographs highlighting the shape of the dorsal (abruptly narrowed posteriorly) and epigynal (narrowly rounded posteriorly) shields and the chelicera (elongate, with distinct digits) of O. sylviarum enable its differentiation from D.gallinae.
The photographic support provided here (both LM and SEM pictures) can be considered a practical tool for scientists who are not well acquainted with the morphology of D.gallinae, and who are involved with classical and molecular systematics, veterinary and human health aspects of poultry red mites.
鸡皮刺螨（家禽红螨）是家禽业的主要威胁，对公共卫生也有重要意义。对于不熟悉螨形态和术语的科学家来说，识别鸡皮刺螨可能很困难，尤其是在尝试使用鉴定钥匙时。此外，该物种很容易与另一种螨，Ornithonyssus sylviarum（北方禽螨）混淆，这两种螨通常共享相同的宿主和环境。
在家禽养殖场采集鸡皮刺螨标本，进行光学显微镜和扫描电子显微镜观察、鉴定和显微照片拍摄。此外，还分别采集了 O. sylviarum 标本，进行了研磨和载玻片处理，用于光学显微镜观察、鉴定和图片拍摄。
本研究使用的微图基于 LM 和 SEM 观察，突出了鸡皮刺螨的以下重要鉴别特征：背甲的明显肩突和盾纹的锯齿边缘、刚毛 j1、s1 和阴门孔的位置，以及第四腿节 pl 上的一根刚毛。此外，突出背甲（后部急剧变窄）和阴门（后部狭窄圆形）以及螯肢（细长，有明显的指节）形状的附加微图使 O. sylviarum 能够与 D. gallinae 区分开来。
这里提供的摄影支持（包括 LM 和 SEM 图片）可以被认为是不熟悉 D.gallinae 形态的科学家的实用工具，他们涉及经典和分子系统学、兽医和家禽红螨对人类健康的影响。
