BYC, an atypical aspartic endopeptidase from Rhipicephalus (Boophilus) microplus eggs

2008 ◽  
Vol 149 (4) ◽  
pp. 599-607 ◽  
Author(s):  
Maria Clara L. Nascimento-Silva ◽  
Alexandre T. Leal ◽  
Sirlei Daffre ◽  
Luiz Juliano ◽  
Itabajara da Silva Vaz ◽  
...  
Keyword(s):  
Boophilus Microplus ◽  
Aspartic Endopeptidase

scholarly journals Principal component analysis on the perceptions of milk producers about Rhipicephalus (Boophilus) microplus control in Minas Gerais

2012 ◽  
Vol 21 (3) ◽  
pp. 224-231 ◽  
Author(s):  
Christiane Maria Barcellos Magalhães da Rocha ◽  
Fábio Raphael Pascoti Bruhn ◽  
Romário Cerqueira Leite ◽  
Antônio Marcos Guimarães ◽  
Ivan Barbosa Sampaio ◽  
...  
Keyword(s):  
Principal Component Analysis ◽  
Principal Component ◽  
Component Analysis ◽  
Production Quality ◽  
Minas Gerais ◽  
Boophilus Microplus ◽  
Basic Knowledge ◽  
Positive Correlation ◽  
Perceptions And Attitudes ◽  
Technological Level

Milk producers in Lavras, Passos and Divinópolis, Minas Gerais, were interviewed with the aim of evaluating their perceptions and attitudes regarding control over Rhipicephalus (Boophilus) microplus. Multivariate correlation between the variables was done by means of principal component analysis. The producers' perceptions and attitudes regarding R. (B.) microplus were similar: most of them did not have any basic knowledge of tick biology or control, and they applied acaricide products through backpack spraying, without any defined technical criteria. Some of the results obtained were: I. a negative correlation between schooling level and the frequency of spraying cattle with acaricides; II. a positive correlation between milk production, quality of equipment for acaricide application and technological level of the farm; III. farm properties with greater production and technification tended to keep the intervals between acaricide applications constant over the course of the year. After applying principal component analysis, a positive correlation was observed between schooling level, technological level of the farm and perceptions regarding R. (B.) microplus, but without any correlation with attitudes towards controlling this tick. It was concluded that higher technological level and schooling level improved the producers' perceptions relating to the biology of the tick R. (B.) microplus, but did not achieve effectiveness with regard to using controls more rationally.

Effect of Metarhizium anisopliae fungus on off-host Rhipicephalus (Boophilus) microplus from tick-infested pasture under cattle grazing in Brazil

2011 ◽  
Vol 181 (2-4) ◽  
pp. 267-273 ◽  
Author(s):  
Marcos Valerio Garcia ◽  
Antonio Carlos Monteiro ◽  
Matias Pablo Juan Szabó ◽  
Dinalva Alves Mochi ◽  
Lucas Detogni Simi ◽  
...  
Keyword(s):  
Metarhizium Anisopliae ◽  
Cattle Grazing ◽  
Boophilus Microplus

Determination of the susceptibility of Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) to ivermectin and fipronil by Larval Immersion Test (LIT) in Uruguay

2011 ◽  
Vol 178 (1-2) ◽  
pp. 148-155 ◽  
Author(s):  
E. Castro-Janer ◽  
L. Rifran ◽  
P. González ◽  
C. Niell ◽  
J. Piaggio ◽  
...  
Keyword(s):  
Immersion Test ◽  
Boophilus Microplus

scholarly journals Proteomics Approach to the Study of Cattle Tick Adaptation to White Tailed Deer

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Marina Popara ◽  
Margarita Villar ◽  
Lourdes Mateos-Hernández ◽  
Isabel G. Fernández de Mera ◽  
José de la Fuente
Keyword(s):  
Animal Health ◽  
Boophilus Microplus ◽  
Host Factors ◽  
Cattle Tick ◽  
Host Proteins ◽  
Tick Feeding ◽  
Blood Digestion ◽  
Cattle Ticks ◽  
Proteomics Approach ◽  
Single Host

Cattle ticks,Rhipicephalus (Boophilus) microplus, are a serious threat to animal health and production. Some ticks feed on a single host species while others such asR. microplusinfest multiple hosts. White tailed deer (WTD) play a role in the maintenance and expansion of cattle tick populations. However, cattle ticks fed on WTD show lower weight and reproductive performance when compared to ticks fed on cattle, suggesting the existence of host factors that affect tick feeding and reproduction. To elucidate these factors, a proteomics approach was used to characterize tick and host proteins inR. microplusticks fed on cattle and WTD. The results showed thatR. microplusticks fed on cattle have overrepresented tick proteins involved in blood digestion and reproduction when compared to ticks fed on WTD, while host proteins were differentially represented in ticks fed on cattle or WTD. Although a direct connection cannot be made between differentially represented tick and host proteins, these results suggested that differentially represented host proteins together with other host factors could be associated with higherR. microplustick feeding and reproduction observed in ticks fed on cattle.

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