Results 41 to 50 of about 5,933 (210)

Acute freshwater CO2 exposure does not impair seawater transfer in three different sizes of Atlantic salmon (Salmo salar) subjected to different photoperiod manipulations

open access: yesJournal of Fish Biology, EarlyView.
Abstract There is a growing interest in Atlantic salmon (Salmo salar) aquaculture to extend the time fish are reared in freshwater (FW) recirculating aquaculture systems (RAS), producing larger FW salmon that can then be induced to undergo smoltification before transfer into marine net pens for grow‐out and harvest.
Le Thi Hong Gam   +5 more
wiley   +1 more source

Efficacy of tricaine methanesulfonate (MS-222) as an anesthetic agent for blocking sensory-motor responses in Xenopus laevis tadpoles. [PDF]

open access: yesPLoS ONE, 2014
Anesthetics are drugs that reversibly relieve pain, decrease body movements and suppress neuronal activity. Most drugs only cover one of these effects; for instance, analgesics relieve pain but fail to block primary fiber responses to noxious stimuli ...
Carlana Ramlochansingh   +3 more
doaj   +1 more source

Body size of male Atlantic salmon (Salmo salar L.) at introduction of a 5‐week LD12:12 winter signal influences their decision to mature early or smoltify

open access: yesJournal of Fish Biology, EarlyView.
Abstract Sexual maturation of male Atlantic salmon post‐smolts (‘jacking’) is undesired in aquaculture and seems to occur due to the intensification in modern facilities. Maturation depends on internal and external factors (temperature, photoperiod, feed availability, energy levels, body size, genetic background) that act on the brain‐pituitary‐gonad ...
Enrique Pino‐Martinez   +5 more
wiley   +1 more source

The physiological response of juvenile diploid and triploid Arctic charr Salvelinus alpinus to exhaustive exercise

open access: yesJournal of Fish Biology, EarlyView.
Abstract Triploidy is an effective tool for producing sterile fishes but often results in impaired performance in commercial aquaculture. In light of this, our study compared the physiological response to exhaustive exercise in juvenile diploid and triploid Arctic charr Salvelinus alpinus, a polar species with great potential for aquaculture.
John D. Clark, Tillmann J. Benfey
wiley   +1 more source

Do offspring characteristics reflect parental migration variation?

open access: yesJournal of Fish Biology, EarlyView.
Abstract Sea trout, Salmo trutta, display a wide range of migratory behaviours, and one aspect of variation comes from freshwater migration distance. The overall aim of this study was to determine if offspring of long‐ and short‐distance migrants exhibited phenotypic differences relating to parental migration distance.
Madeleine Berry   +9 more
wiley   +1 more source

Efficacy of Ketoprofen and Benzocaine Chewing Gums for Reducing Orthodontic Pain

open access: yesJournal of Islamic Dental Association of Iran, 2014
Background and Aim: Pain relief is important during orthodontic treatment. The aim of this study was to compare the efficacy of ketoprofen and benzocaine chewing gums for pain reduction during fixed orthodontic treatment.
Ladan Eslamian   +2 more
doaj  

Comparison of the Effectiveness of Two Different Methods of Alleviating Pain and Anxiety during Local Anaesthesia Administration in Children: A Split-mouth Study

open access: yesAdvances in Human Biology
Introduction: This study aimed to compare the effectiveness of two different methods, a custom-designed mucosal vibrator and topical benzocaine gel, in alleviating pain and anxiety during local anaesthesia (LA) administration in paediatric patients ...
Seema Jabeen   +5 more
doaj   +1 more source

RANDOMIZED, PLACEBO-CONTROLLED STUDY TO EVALUATE THE EFFICACY, SAFETY, AND TOLERABILITY OF BENZOCAINE WIPES IN SUBJECTS WITH PREMATURE EJACULATION

open access: yesJournal of Men's Health, 2019
Aim This study investigated the efficacy and safety of benzocaine wipes (PREBOOST) applied to the penis prior to intercourse for the treatment of men with premature ejaculation. Materials and methods The study utilized the local anesthetic benzocaine, in
Ridwan Shabsigh   +4 more
doaj   +1 more source

Growth and age differences between two male alternative reproductive tactics in the plainfin midshipman

open access: yesJournal of Fish Biology, EarlyView.
Abstract The plainfin midshipman (Porichthys notatus Girard, 1854) is a toadfish with two distinct reproductive male tactics: ‘guarder males’ and ‘sneaker males’. These two tactics are anatomically, physiologically and behaviourally distinct from one another at sexual maturity, but it remained unclear whether these two male types remain fixed or ...
Micah J. Quindazzi   +4 more
wiley   +1 more source

The Effects of Caustic Soda and Benzocaine on Directed Grooming to the Eyestalk in the Glass Prawn, Palaemon elegans, Are Consistent with the Idea of Pain in Decapods

open access: yesAnimals
Acceptance of the possibility of pain in animals usually requires that various criteria are fulfilled. One such criterion is that a noxious stimulus or wound would elicit directed rubbing or grooming at the site of the stimulus.
Stuart Barr, Robert W. Elwood
doaj   +1 more source

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