Ferreira Juliana Isabel Giuli da Silva, Pena Hilda Fátima Jesus, Azevedo Sérgio Santos, Labruna Marcelo Bahia, Gennari Solange Maria
Departamento de Medicina Veterinária Preventiva e Saúde Animal, Faculdade de Medicina Veterinária e Zootecnia, Universidade de São Paulo - USP, São Paulo, SP, Brasil.
Unidade Acadêmica de Medicina Veterinária, Universidade Federal de Campina Grande - UFCG, Patos, PB, Brasil.
Rev Bras Parasitol Vet. 2016 Oct-Dec;25(4):435-440. doi: 10.1590/S1984-29612016081. Epub 2016 Dec 1.
Occurrences of gastrointestinal parasites were assessed in fecal samples from 3,099 dogs in the metropolitan region of São Paulo, SP, that were treated at the Veterinary Hospital of the University of São Paulo Veterinary School. The samples were analyzed using the flotation and centrifugal sedimentation methods. The results were compared with those from previous studies (at different times). The frequency of each parasite was correlated with the dogs' ages, breeds and gender, as well as the occurrences of diarrhea and the use of anthelmintics, by means of the chi-square or Fisher exact test. Partitioned chi-square tests were used to compare occurrences of each parasite and the times analyzed. Out of the total number of samples, 20.5% were positive and 16.1% (102/635) of these presented more than one genus of parasites. Ancylostoma spp. (7.1%) and Giardia spp. (5.5%) were the most frequent helminths and protozoa, respectively. Ancylostoma spp. was associated (p<0.05) with age (over one year), mixed breeds, sex (male) and no use of anthelmintics. Dogs under one year and mixed breeds were associated with occurrences of Toxocara canis; and younger dogs with Giardia spp., Cryptosporidium spp. and Cystoisospora spp. Giardia spp. were also associated with dogs with a defined breed (p<0.05). All the parasites analyzed presented lower incidence in the last period analyzed than in the previous periods.
对圣保罗大学兽医学院兽医医院治疗的圣保罗市大都市区3099只犬的粪便样本进行了胃肠道寄生虫感染情况评估。样本采用漂浮法和离心沉淀法进行分析。将结果与之前不同时间的研究结果进行比较。通过卡方检验或Fisher精确检验，将每种寄生虫的感染频率与犬的年龄、品种、性别、腹泻发生率以及驱虫药的使用情况进行相关性分析。采用分割卡方检验比较每种寄生虫的感染情况和分析时间。在所有样本中，20.5%呈阳性，其中16.1%（102/635）的样本感染了不止一种寄生虫属。钩口线虫属（7.1%）和贾第虫属（5.5%）分别是最常见的蠕虫和原生动物。钩口线虫属与年龄（超过1岁）、混种犬、性别（雄性）和未使用驱虫药有关（p<0.05）。1岁以下的犬和混种犬与犬弓首蛔虫感染有关；幼犬与贾第虫属、隐孢子虫属和等孢球虫属感染有关。贾第虫属也与纯种犬有关（p<0.05）。所有分析的寄生虫在最后一个分析时间段的发病率均低于之前的时间段。
