Results 41 to 50 of about 3,226 (202)

Análise in vitro da eficácia do amitraz sobre populações de Rhipicephalus (Boophilus) microplus (Canestrini, 1887) da região sul do Rio Grande do Sul In vitro analysis of amitraz efficacy against Rhipicephalus (Boophilus) microplus (Canestrini, 1887) populations of southern region of Rio Grande do Sul state

open access: yesRevista Brasileira de Parasitologia Veterinária, 2009
Formulações comerciais à base de amitraz são muito utilizadas como acaricidas na Região Sul do Rio Grande do Sul, contudo sem maiores estudos da sua eficácia nessa região. O presente estudo objetivou estimar a frequência de populações de R.
Tânia Regina Bettin dos Santos   +3 more
doaj   +1 more source

Effect of amitraz and its metabolites on intestinal motility

open access: yes, 1991
1. Amitraz was rapidly metabolised to BTS27271 after intravenous administration to sheep. 2. Amitraz and BTS27271 had significant H1-histamine antagonist activity on isolated guinea-pig ileum. BTS27271 was approximately 3.3 times as potent as amitraz. 3.
Mogg T.D., Pass M.A.
core   +1 more source

Comparison of behavioral and clinical effects of intravenous amitraz or romifidine administration in horses Comparação de efeitos comportamentais e clínicos da administração intravenosa de amitraz ou romifidina em eqüinos

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
Clinical and behavioral effects of intravenous injection of romifidine (60mcg/kg) or amitraz (0.4mg/kg) were compared in six horses, over 120 min. Romifidine caused head ptosis (HP), reduced respiratory rate (RR) and ileo-cecal sphincter activity (IC ...
M.C. Mendes   +3 more
doaj   +1 more source

Pharmacokinetics and metabolism of amitraz in ponies and sheep

open access: yes, 1995
Amitraz and its active metabolite BTS2 7271 were given intravenously to ponies and sheep at equimolar doses of 1 mg/kg and 0.68 mg/kg, respectively, and the plasma concentrations of amitraz and BTS27271 estimated at various times thereafter.
PASS, M. A., MOGG, T. D.
core   +1 more source

Assessment of insecticide use practices in licensed pest control operators in North Carolina

open access: yesPest Management Science, EarlyView.
A statewide survey of 105 licensed North Carolina pesticide operators found ants, mosquitoes, and aphids as top target pests, pyrethroids as the dominant insecticide class (68%), and limited resistance monitoring, establishing a baseline for future insecticide resistance management and outreach.
Kaylin Russell   +3 more
wiley   +1 more source

Comparison of nonchemical, organic and synthetic Varroa destructor control strategies in honey bee colonies: effects on parasite load, colony strength and health

open access: yesPest Management Science, EarlyView.
Combining intensive drone‐brood removal with brood interruption provided the most effective and consistent seasonal Varroa control. Abstract BACKGROUND Varroa destructor remains the most significant biotic threat to honey bee colonies, and increasing resistance to synthetic acaricides necessitates alternative control strategies.
Leon M. Reinhold, Kirsten S. Traynor
wiley   +1 more source

ANTINOCICEPTIVE EFFECT OF AMITRAZ IN MICE AND RATS

open access: yes, 1994
Amitraz, a formamidine insecticide and acaricide used in veterinary practice, presents side effects related to its pharmacological activity on az-adrenergic receptors.
Souza, K. R.   +3 more
core   +3 more sources

Effect of Propylparaben on In Vitro Maturation of Porcine Oocytes and Embryo Development

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Parabens are synthetic chemicals that, due to their antibacterial and fungicidal effects, are widely used as preservatives in food, cosmetics, and personal care products, such as shampoos, hair conditioners, body creams, soaps, deodorants, makeup, wet wipes, lotions, female hygiene products, and vaginal lubricants. Several years ago, they were
Elivier Núñez‐Macías   +10 more
wiley   +1 more source

Molecular Characterization of Octopamine/Tyramine Receptor Gene of Amitraz-Resistant Rhipicephalus (Boophilus) decoloratus Ticks from Uganda

open access: yesMicroorganisms, 2022
We previously reported the emergence of amitraz-resistant Rhipicephalus (Boophilus) decoloratus ticks in the western region of Uganda. This study characterized the octopamine/tyramine receptor gene (OCT/Tyr) of amitraz-resistant and -susceptible R.
Patrick Vudriko   +7 more
doaj   +1 more source

Effect of amitraz on contractions of the guinea-pig ileum in vitro

open access: yes, 1982
1. 1. The effect of the formamidine pesticide amitraz on the motility of isolated pieces of guinea-pig ileum was studied. 2. 2. Contractions of the ileum stimulated by histamine and the histamine H1 agonists 2-methylhistamine and 2-pyridylethylamine were
Seawright A.A., Pass M.A.
core   +1 more source

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