Results 21 to 30 of about 5,863 (223)

Strategies for the control of Rhipicephalus microplus ticks in a world of conventional acaricide and macrocyclic lactone resistance [PDF]

open access: yes, 2018
Infestations with the cattle tick, Rhipicephalus microplus, constitute the most important ectoparasite problem for cattle production in tropical and subtropical regions worldwide, resulting in major economic losses. The control of R.
Bhushan, Chandra   +2 more
core   +1 more source

Study of acute toxicosis and biochemical changes inducd by amitraz in chicks [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2014
The aim of this study was to determined the toxic effects and biochemical changes induced by amitraz in the chicks (7-14 days). The median lethal dose (LD50) of amitraz was (53.05 mg / kg, orally. Yohimbin injection at (0.5, 1 mg / kg, intraperitoneally)
Y.A.AL-Hammdani, K.AL-Baggou
doaj   +1 more source

Disposition Kinetics of Amitraz in Lactating Does

open access: yesMolecules, 2021
Amitraz, a member of the formamidine pesticide family, commonly used for ectoparasite control, is applied as a dip or low-pressure hand spray to cattle and swine, and the neck collar on dogs.
Sathish Nanjundappa   +6 more
doaj   +1 more source

Identification of a novel ß-adrenergic octopamine receptor-like gene (ßAOR-like) and increased ATP-binding cassette B10 (ABCB10) expression in a Rhipicephalus microplus cell line derived from acaricide-resistant ticks [PDF]

open access: yes, 2016
Background: The cattle tick Rhipicephalus (Boophilus) microplus is an economically important parasite of livestock. Effective control of ticks using acaricides is threatened by the emergence of resistance to many existing compounds. Several continuous R.
Bell-Sakyi, Lesley   +4 more
core   +1 more source

Cardiovascular assessment in horses sedated with xylazine or amitraz Avaliação cardiovascular em eqüinos sedados com xilazina ou amitraz

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
Cardiovascular effects due to intravenous (IV) xylazine (1.0mg/kg) or amitraz (0.1 or 0.4mg/kg) were evaluated in horses. Left ventricular function indexes, heart rate (HR), and cardiac output (CO) were measured by echocardiography.
R.L. Linardi   +2 more
doaj   +1 more source

Evaluating health risks from occupational exposure to pesticides and the regulatory response. [PDF]

open access: yes, 1994
In this study, we used measurements of occupational exposures to pesticides in agriculture to evaluate health risks and analyzed how the federal regulatory program is addressing these risks.
Bois, FY, Kyle, AD, Woodruff, TJ
core   +2 more sources

Differentially expressed genes in response to amitraz treatment suggests a proposed model of resistance to amitraz in R. decoloratus ticks

open access: yesInternational Journal for Parasitology: Drugs and Drug Resistance, 2018
The widespread geographical distribution of Rhipicephalus decoloratus in southern Africa and its ability to transmit the pathogens causing redwater, gallsickness and spirochaetosis in cattle makes this hematophagous ectoparasite of economic importance ...
Samantha Baron   +6 more
doaj   +1 more source

Resistance to cypermethrin and amitraz in Rhipicephalus (Boophilus) microplus on the Santa Catarina Plateau, Brazil Situação da resistência do Rhipicephalus (Boophilus) microplus à cipermetrina e amitraz no Planalto Catarinense, Brasil

open access: yesRevista Brasileira de Parasitologia Veterinária, 2012
With the objective of evaluating Rhipicephalus (Boophilus) microplus resistance to cipermetrina and amitraz, were collected engorged tick females from cattle on 20 farms on the Santa Catarina Plateau, in southern Brazil, between January of 2004 and May ...
Luana Paula Haubold Neis Veiga   +5 more
doaj   +1 more source

Effect of amitraz and xylazine on some physiological variables of horses

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2000
The effect of the intravenous injection of amitraz (0.1mg/kg) to horses on cardiac activity, respiratory rate, intestinal motor activity, rectal temperature, sweating and masticating was evaluated and compared to the effect of intravenous administration ...
A. Queiroz-Neto   +6 more
doaj   +1 more source

Results of international standardised beekeeper surveys of colony losses for winter 2012-2013 : analysis of winter loss rates and mixed effects modelling of risk factors for winter loss. [PDF]

open access: yes, 2014
This article presents results of an analysis of winter losses of honey bee colonies from 19 mainly European countries, most of which implemented the standardised 2013 COLOSS questionnaire.
Aivar Raudmets   +27 more
core   +1 more source

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