Results 81 to 90 of about 9,833 (179)

Estudo da resistência/suscetibilidade aos endo e ectoparasitas em bovinos Nelore e cruzados com raças taurinas. [PDF]

open access: yes, 2016
A resistência à infecção natural por nematódeos gastrintestinais e à infestação por ectoparasitas foi comparada em 45 animais, machos e fêmeas, dos grupos genéticos, Nelore (NI, n=28) e ?three cross? ½ Angus + ¼ Canchim + ¼ Nelore (TC, n=17).
ALENCAR, M. M. de   +5 more
core  

Transmisión de cepas atenuadas de babesia bigemina y babesia bovis por garrapatas rhipicephalus (Boophilus) microplus

open access: yesRevista Mexicana de Ciencias Pecuarias, 2011
Para evaluar la transmisión por garrapatas Rhipicephalus microplus (R. microplus) de una clona atenuada de Babesia bovis (BOR) y una cepa atenuada de Babesia bigemina (BIS), doce bovinos se dividieron en cuatro grupos e infestados de forma escalonada con
Edmundo E. Rojas Ramírez   +8 more
doaj  

Evaluation of the efficacy of cypermethrin and amitraz against Rhipicephalus (Boophilus) microplus, in the State of Pernambuco, Brazil

open access: yesArquivos do Instituto Biológico, 2016
: The Rhipicephalus (Boophilus )microplus is an important tick species which affect bovines in tropical areas. Its control is based on the use of chemical acaricides, but the frequent use of these substances has been conducted to the development of tick ...
Breno Barros de Santana   +4 more
doaj   +1 more source

Uso de Extratos de Nim (Azadirachta indica) no controle do carrapato Rhipicephalus (Boophilus) microplus. [PDF]

open access: yes, 2011
O objetivo deste comunicado técnico é expor e discutir os principais aspectos relacionados à utilização dos extratos de Nim no controle do carrapato bovino R.
BRITO, L. G.   +6 more
core   +1 more source

Resistencia a los acaricidas en Rhipicephalus (Boophilus) microplus: situación actual y mecanismos de resistencia

open access: yesRevista Mexicana de Ciencias Pecuarias, 2012
Rhipicephalus (Boophilus) microplus es una plaga endémica de ganado en las regiones tropicales y subtropicales del mundo, causando grandes pérdidas económicas a los productores de ganado.
Roger Iván Rodríguez Vivas   +2 more
doaj   +2 more sources

The role of Cytochrome P450s towards the control of ticks and other arthropods [PDF]

open access: yes, 2011
Introduction Ticks most notably Rhipicephalus (Boophilus) microplus are becoming increasingly resistant to acaricides .This resistance is often broken down into the 3 main mechanisms of detoxification involving 3 groups of enzymes; Cytochrome P450s ...
Bell-Sakyi, Lesley   +4 more
core  

Efficacy of acaricides against larvae of Rhipicephalus sanguineus (Latreille, 1806) (Acari: Ixodidae) and Rhipicephalus (Boophilus) microplus (Canestrini, 1887) (Acari: Ixodidae)

open access: yesBiotemas, 2017
Parasitism by mites has always been of concern with regard to losses in animal production and to the transmission of etiologic agents of important diseases as well, and about 95% of the developing forms of ticks in the non-parasitic phase are in the ...
Luciano Melo de Souza   +2 more
doaj  

Efficacy of commercial synthetic pyrethroids and organophosphates associations used to control Rhipicephalus (Boophilus) microplus in Southern Brazil

open access: yesRevista Brasileira de Parasitologia Veterinária, 2017
This study evaluated the acaricidal efficiency of synthetic pyrethroids (SP) associated with organophosphates (OP) against Rhipicephalus (Boophilus) microplus populations in the state of Rio Grande do Sul, Southern Brazil.
Caroline Zamperete Reginato   +4 more
doaj   +1 more source

The occurrence of pathogens in Rhipicephalus microplus ticks from cattle in Madagascar

open access: yesVeterinární Medicína, 2016
Rhipicephalus microplus is one of the most important ectoparasites of cattle in tropical and subtropical regions. In ticks collected from cattle the pathogens Babesia bovis, Anaplasma spp. and Ehrlichia spp. can be detected.
A. Matysiak   +5 more
doaj   +1 more source

Avaliação da resistência de bovinos de diferentes grupos genéticos ao carrapato e à babesiose. [PDF]

open access: yes, 2006
Um subconjunto de animais foi também avaliado em quatro infestações artificiais. Os efeitos de grupo genético nas taxas de infecção por Babesia bigemina foram investigados no animal e no carrapato. Quando se consideraram as quatro infestações artificiais
ALENCAR, M. M. de   +7 more
core  

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