Loudness level and frequency content of noise in the animal house

Pfaff, John F.; Stecker, M.

doi:10.1258/002367776781071521

Cited by 28 publications

(9 citation statements)

References 2 publications

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“…This uncontrollable variable can therefore also influence their behavioural performance [71]. It is therefore recommended to minimize environmental noise or to use constant white noise to block it [71][72][73].…”

Section: Environmental Stressmentioning

confidence: 99%

Mouse behavioural analysis in systems biology

Meer

Raber

2005

Biochemical Journal

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Molecular techniques allowing in vivo modulation of gene expression have provided unique opportunities and challenges for behavioural studies aimed at understanding the function of particular genes or biological systems under physiological or pathological conditions. Although various animal models are available, the laboratory mouse (Mus musculus) has unique features and is therefore a preferred animal model. The mouse shares a remarkable genetic resemblance and aspects of behaviour with humans. In this review, first we describe common mouse models for behavioural analyses. As both genetic and environmental factors influence behavioural performance and need to be carefully evaluated in behavioural experiments, considerations for designing and interpretations of these experiments are subsequently discussed. Finally, common behavioural tests used to assess brain function are reviewed, and it is illustrated how behavioural tests are used to increase our understanding of the role of histaminergic neurotransmission in brain function.

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Section: Environmental Stressmentioning

confidence: 99%

Mouse behavioural analysis in systems biology

Meer

Raber

2005

Biochemical Journal

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“…work of any detail appears to have been carried out to quantify effects at these levels (Fletcher, 1976;Pfaff & Stecker, 1976), despite a large body of research on more intense sounds. Loud or unwelcome sound ('noise'), in common with any other general systemic stressor, can affect the behaviour and bodily functions of laboratory animals.…”

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confidence: 99%

Sound and Its Significance for Laboratory Animals

Gamble

1982

Biological Reviews

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Summary 1. Several methods of varying accuracy have been used to assess what sounds small laboratory animals such as rodents are capable of hearing. Most rodents can detect sounds from 1000 Hz (the frequency of the Greenwich Time Signal) up to 100000 Hz, depending on the strain, with usually one or more commonly two peaks of sensitivity within this range. Dogs can detect sound most easily from 500 Hz to 55000 Hz, depending on the breed. 2. Rodents also produce sound signals as a behavioural response and for communication in a variety of situations. Ultrasonic calls in the range 22000–70000 Hz are the main communicating pathway during aggressive encounters, mating, and mothering. Similar calls have also been recorded from isolated animals associated with inactivity, rest and possibly even sleep. 3. Very loud sounds cause seizures in rats and mice, or can make them more susceptible to other sounds later in life. This effect is possible even when animals are fully anaesthetized. Sound tends to startle and reduce activity in several species of animal. Even offspring of mice that have been sound‐stressed exhibit abnormal behaviour patterns. Sounds also elicit various responses in rats from increasing aggression to making them more tolerant to electric shocks. 4. Levels of sound above 100 dB are teratogenic in several species of animals and several hormonal, haematological and reproductive parameters are disturbed by sounds above 80 dB. When rats are chemically deafened the disturbance to their fertility disappears. Lipid metabolism is disrupted in rats when exposed to over 95 dB of sounds, leading to increases in plasma triglycerides. Atherosclerosis can be produced in rabbits by similar levels of sound. 5. It has also been shown in guinea pigs and cats that hearing damage is governed by the duration as well as the intensity of the sound and is irreversible. Work on chinchillas hs demonstrated that sounds above 95 dB lead to this injury, but that sounds of 80 dB have no permanent effect on hearing sensitivity.

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“…An exposure to noise levels at ≥ 85dBA sound pressure level for a long period of time can cause permanent hearing loss through cochlear damage [24]. In a study carried out by Pfaff and Stacker [40], it was found that noise levels in animal facilities were approximately 60 episodes/0.5 h at ≥ 90dBA in the morning and > 60 episodes/0.5 h at ≥100dBA in the evening. Animals are sensitive to noise and this has effects on their productivity and behavior.…”

Section: Poultry/livestockmentioning

confidence: 99%

Assessments of Noise Levels From Noise Sources in Akure, Nigeria: A Preliminary Study

Abulude

Fagbayide

Akinnusotu³

2018

ijs

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Background: Noise injury and hearing loss are significant problems in Nigerian community. The hearing loss sustained from noise injury can have disabled personnel and social consequences for the affected persons and their families. This study was carried out to quantify the noise level of over eighty (80) different sources using the sound level meter (GB: 2266204) at different locations in Akure, capital of Ondo State, Nigeria. Standard procedure specified by the manufacturer was strictly followed and the results were statistically analyzed. The range of results obtained were: household products (48.5±0.

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Loudness level and frequency content of noise in the animal house

Cited by 28 publications

References 2 publications

Mouse behavioural analysis in systems biology

Mouse behavioural analysis in systems biology

Sound and Its Significance for Laboratory Animals

Assessments of Noise Levels From Noise Sources in Akure, Nigeria: A Preliminary Study

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