Seasonal dynamics of Rhipicephalus sanguineus (Acari: Ixodidae) in dogs from a police unit in Goiânia, Goiás, Brazil
Seasonal dynamics of Rhipicephalus sanguineus (Acari: Ixodidae) in dogs from a police unit in Goiânia, Goiás, Brazil
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DOI：
10.1590/s0103-84782007000200026
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发表时间：
2007-04-01
期刊：
影响因子：
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通讯作者：
Borges, Lígia Miranda Ferreira
中科院分区：
文献类型：
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作者：
Louly, Carla Cristina Braz;Fonseca, Iracele Nogueira;Borges, Lígia Miranda Ferreira
2001年7月至2002年7月，在戈亚斯州戈亚尼亚的一个警察单位，对犬中血红扇头蜱的季节性动态进行了评价。该研究在7只自然感染犬（两只英国可卡犬和5只杂种犬）中进行。年龄在六个月到十岁之间每两周测定一次摄食幼虫、幼虫和成虫的数量。显示感染水平超过500只成年蜱的犬接受了三次杀螨剂治疗。考虑到处理影响了蜱的一些高峰种群的发育，推断出现了以下高峰：（四个高峰）：前八月至十一月，十一月至二月，三月至五月，五月至七月;（五个高峰）：7月至9月，10月至12月，12月至2月，3月至5月，6月至7月; -成年人（四个高峰）：7月至10月、10月至1月、1月至3月、4月至7月。这些连续的活性峰的出现是由于R. sanguineus可能表明该蜱在戈亚尼亚每年可发展多达四代。另一方面，如果杀螨剂处理不干扰R.血红峰，每个阶段的四个以上的峰出现在狗身上。在这种情况下，可以推断R.血红色是在狗舍内发展伴随。不同季节蜱虫各期平均数相似。主要附着部位位于颈部、胸部、前肢、腋窝、耳、趾间和头部。取食英国可卡犬的成蜱数是取食杂种犬的1.4 ~ 11.5倍。
The seasonal dynamics of Rhipicephalus sanguineus ticks was evaluated in dogs at a Police Unit in Goiania, Goias, Brain, from July 2001 to July 2002. The study was carried out on seven naturally infested dogs (two English Cocker Spaniels and five mongrel dogs). with ages between six months and 10 years. Every two weeks, the numbers of feeding larvae, nymphs, and adults were determined. Dogs showing infestation levels above 500 adult ticks received three acaricide treatments. Considering that the treatments had affected the development of some peaking populations of ticks, it was inferred the occurrence of the following peaks: - larvae (four peaks): front August to November, from November to February, from March to May, and from May to July; - nymphs (five peaks): from July to September, from October to December, from December to February front March to May, and from June to July; - adults (four peaks): from July to October, from October to January, from January to March, and from April to July. The occurrence of these consecutive peaks of activity of each stage of R. sanguineus may indicate that this tick can develop up to four generations per year in Goiania. On the other hand, if the acaricide treatment did not interfere with the development of R. sanguineus peaks, more than four peaks of each stage have occurred on the dogs. In this case, it is acceptable to infer that more than one population of R. sanguineus was developing within the kennel concomitantly. The mean numbers of each tick stage was similar in the different seasons. The main attachment sites were located on the neck, chest, forelegs, armpits, ears, between toes and on the head. The number of adult ticks feeding on English Cocker Spaniel dogs was 1.4 to 11.5 times higher than that feeding on mongrel dogs.