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Comparison of efficiency and reproductive aptitude indexes between a reference and field strains of the cattle tick Rhipicephalus (Boophilus) microplus, in Sinaloa, Mexico.
Gaxiola-Camacho, Soila; García-Vázquez, Zeferino; Cruz-Vázquez, Carlos; Portillo-Loera, Jesus; Vázquez-Peláez, Carlos; Quintero-Martínez, Maria Teresa; Rosario-Cruz, Rodrigo.
Afiliação
  • Gaxiola-Camacho S; Instituto Tecnológico El Llano Aguascalientes, A.P. 74-2, Admon, Aguascalientes, Mexico.
Rev Bras Parasitol Vet ; 18(4): 9-13, 2009.
Article em En | MEDLINE | ID: mdl-20040202
The objective of this work was to study the reproductive behavior of two strains of R. (B.) microplus, one wild-caught (Native) and one reference strain (Media Joya) for two years, measuring the reproductive efficiency index (REI) and reproductive aptitude index (RAI). Engorged ticks from each strain were collected monthly from February 2002 to February 2004. These were weighed and kept in the laboratory until egg-laying. Oogenic masses were individually weighed and incubated until larvae emergence. REI and RAI were calculated from each sample, grouping ticks by weight in 100 mg range classes. An analysis of variance and Duncan's multiple rank tests were carried out on the data (P < 0.05). Pearson's correlation coefficients were estimated (P < 0.01) in order to determine the relationship between engorgement weight and the weight and number of laid and hatched eggs. The Native strain showed a higher engorgement weight than Media Joya strain. In both strains REI and RAI were similar in all weight classes; with a quadratic tendency in Media Joya and linear-quadratic in the Native strain (P < 0.05). Significant differences where observed when REI and RAI of both strains were compared along the duration of the study (P < 0.01) with the Native strain performing better in both indexes, including better performance during the dry season. All parameters studied showed highly significant correlation; eggs laid and eggs hatched were notably highly correlated, 0.94 and 0.91, for Media Joya strain and Native strain respectively.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Rhipicephalus Limite: Animals País/Região como assunto: Mexico Idioma: En Revista: Rev Bras Parasitol Vet Assunto da revista: MEDICINA VETERINARIA / PARASITOLOGIA Ano de publicação: 2009 Tipo de documento: Article País de afiliação: México País de publicação: Brasil
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Rhipicephalus Limite: Animals País/Região como assunto: Mexico Idioma: En Revista: Rev Bras Parasitol Vet Assunto da revista: MEDICINA VETERINARIA / PARASITOLOGIA Ano de publicação: 2009 Tipo de documento: Article País de afiliação: México País de publicação: Brasil