Variation in the hatching rate of larvae of four tick species from laboratory colonies.

IF 1.2 4区农林科学 Q2 Veterinary

Revista Brasileira De Parasitologia Veterinaria Pub Date : 2025-10-13 eCollection Date: 2025-01-01 DOI:10.1590/S1984-29612025055

Ygor Henrique da Silva, Marisa Beatriz da Silva Rocha, Ester Oliozi Marré, Manuela Pimentel da Motta, Brena Gava Guimarães, Thais Ribeiro Correia Azevedo, Guilherme Marcondes Klafke, Barbara Rauta de Avelar, Diefrey Ribeiro Campos, Fabio Barbour Scott

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Abstract

The objective of this study was to evaluate the hatching percentage of tick larvae of Amblyomma sculptum, Dermacentor nitens, Rhipicephalus linnaei, and three strains of Rhipicephalus microplus. The egg masses laid by females of each tick species were weighed in different amounts (125, 250 and 500mg), placed in adapted 3 and 5 mL syringes, and incubated at 27°C and 80% relative humidity for 25 days for A. sculptum and 21 days for the remaining species. After this period, larval hatching rate was evaluated and data were analyzed through correlation and comparison between groups. The results showed that the average hatching rates varied from 27.9% to 42.2% for A. sculptum, 86.6% to 87.7% for D. nitens, 74.4% to 80.0% for R. linnaei, and R. microplus: 75.3% to 82.6% (UFRRJ strain), 64.6% to 72.2% (Mozo strain), and 71.8% to 75.2% (Porto Alegre strain). Although statistically significant differences were observed in the mean percentages between groups, the correlation was weak. We concluded that the weight of the egg masses and the volume of the containers did not significantly affect larval hatching.

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实验室四种蜱类幼虫孵化率的变化。

本研究的目的是评价雕刻无足虫、尼氏革螨、林奈鼻头虫和3种微小鼻头虫蜱幼虫的孵化率。取各蜱种雌虫产卵量（125、250、500mg）称重，分别置于3、5ml注射器中，在27℃、80%相对湿度条件下孵育25天，其余蜱种孵育21天。试验结束后，通过组间的相关比较，评价幼虫的孵化率，并对数据进行分析。结果表明，不同菌株的平均孵化率分别为：A. sculptum 27.9% ~ 42.2%， D. nitens 86.6% ~ 87.7%， R. linnaei 74.4% ~ 80.0%， R. microplus 71.8% ~ 75.2% （UFRRJ菌株），64.6% ~ 72.2% （Mozo菌株），71.8% ~ 75.2% （Porto Alegre菌株）。虽然组间的平均百分比差异有统计学意义，但相关性较弱。结果表明，卵块的重量和容器的体积对幼虫的孵化没有显著影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Revista Brasileira De Parasitologia Veterinaria PARASITOLOGY-VETERINARY SCIENCES

CiteScore

2.60

自引率

7.70%

发文量

审稿时长

>12 weeks

期刊介绍： La revista es un órgano de difusión del Colegio Brasileño de Parasitología Veterinaria, con una especificidad dentro de esa área, la difusión de los resultados de la investigación brasileña en las áreas de Helmintología, Protozoología, Entomología y agentes transmitidos por artrópodos, relacionados con la salud animal.