Horn Tamara Bianca, Granich Juliana, da Silva Vinícius Leão, Ferla Noeli Juarez
Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari, UNIVATES, 95900-000, Lajeado, Rio Grande do Sul, Brazil.
Laboratório de Acarologia, Tecnovates, Universidade do Vale do Taquari, UNIVATES, 95900-000, Lajeado, Rio Grande do Sul, Brazil.
Vet Parasitol. 2019 Aug;272:64-74. doi: 10.1016/j.vetpar.2019.06.002. Epub 2019 Jul 6.
This study aimed to evaluate the mite fauna and their ecological interactions in commercial laying hen farms in the state of Rio Grande do Sul, Brazil. It was conducted from August 2013 through August 2014 with two sampling strategies (feathers and traps) in three different production systems: automated (A), semi-automated (S) and free-range (FR). A total of 38,383 mites were collected belonging to 23 families and 33 species, most of which were collected in feathers (74%) followed by traps (26%). There was higher abundance at S (10,774-28.1%) and S (11,023-28.7%) followed by FR (6972-18.2%), A (1896-4.9%), A (4775-12.4%), and A (2943-7.7%). Higher richness was observed at S (23 species), S (18 species), and FR (19 species). Megninia ginglymura (Mégnin) (Analgidae) was the species with the highest health importance, eudominant on feathers, and its populations seems to be related with increased temperature. Tuccioglyphus setosus Horn et al. (Pyroglyphidae) seems to be influenced by relative air humidity and temperature. Predators with the highest populations were Cheyletus malaccensis (Oudemans) (Cheyletidae), Typhlodromus transvaalensis (Nesbitt) (Phytoseiidae), Blattisocius keegani (Fox), and Blattisocius dentriticus (Berlese) (Blattisocidae).
本研究旨在评估巴西南里奥格兰德州商业化蛋鸡场中的螨类区系及其生态相互作用。研究于2013年8月至2014年8月进行，在三种不同生产系统中采用了两种采样策略（羽毛和诱捕器）：自动化（A）、半自动化（S）和放养（FR）。共收集到38383只螨，分属于23科33种，其中大部分是从羽毛中收集到的（74%），其次是诱捕器（26%）。S系统（10774只，占28.1%）和S系统（11023只，占28.7%）的螨数量较多，其次是FR系统（6972只，占18.2%）、A系统（1896只，占4.9%）、A系统（4775只，占12.4%）和A系统（2943只，占7.7%）。在S系统（23种）、S系统（18种）和FR系统（19种）中观察到较高的物种丰富度。巨刺螨（Mégnin）（刺螨科）是对健康影响最大的物种之一（在羽毛上占优势），其种群数量似乎与温度升高有关。刚毛图氏螨（Horn等）（尘螨科）似乎受相对空气湿度和温度的影响。种群数量最多的捕食性螨类有马六甲肉食螨（Oudemans）（肉食螨科）、德兰士瓦盲走螨（Nesbitt）（植绥螨科）、基氏拟寄螨（Fox）和食粉拟寄螨（Berlese）（拟寄螨科）。
