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  1. The effects of cage color and light intensity on rat affect during heterospecific play

    Contributor(s):: LaFollette, Megan R., Swan, Melissa P., Smith, Rebecca K., Hickman, Debra L., Gaskill, Brianna N.

  2. Can dolphins heal by ultrasound?

    Contributor(s):: Brensing, K., Linke, K., Todt, D.

  3. Do audible and ultrasonic sounds of intensities common in animal facilities affect the autonomic nervous system of rodents?

    Contributor(s):: Burwell, A. K., Baldwin, A. L.

    In animal facilities, noises, often poorly controlled, occur over a wide range of frequencies and intensities. Evidence demonstrates that audible noise and ultrasound have deleterious effects on rodent physiology, but it is not known how they affect the autonomic nervous system (ANS). This study...

  4. Ultrasound observations of fetal movements in the pig: an exploratory study

    Contributor(s):: Cohen, S., Mulder, E. J. H., Oord, H. A. van, Jonker, F. H., Weijden, G. C. van der, Taverne, M. A. M.

    The feasibility and practical conditions of repeated, non-invasive ultrasound scanning for fetal movements during late gestation in the pig were studied. After a short training period of the sow, good quality recordings of fetal movements were obtained for 60 min using a 3.5 MHz ultrasound...

  5. Foetal behaviour and the possibility of its detection in farm animals

    Contributor(s):: Bielanski, A.

  6. Some features of an ultrasonic study of bovine foetal kinesis

    Contributor(s):: Fraser, A. F.

  7. The efficacy of an ultrasonic cat deterrent

    Contributor(s):: Nelson, S. H., Evans, A. D., Bradbury, R. B.

    Ultrasound deterrents for a variety of mammals, including cats, are widely available in the commercial market, but few have been independently tested for efficacy. This study tested the efficacy of an ultrasonic cat deterrent 'Catwatch copyright ', using 63 and 96 volunteer observers in two...

  8. A note on behavioural responses of farm animals to ultrasound

    Contributor(s):: Algers, B.

    Horses, cattle, swine, sheep and poultry all reacted to ultrasound from a device used to clear rats from buildings. Most animals were drawn towards the sound at first and then turned away and kept their ears pointing away from the sound. Poultry showed the least reaction. The device is considered...

  9. Aversive responses of dogs to ultrasonic, sonic and flashing light units

    Contributor(s):: Blackshaw, J. K., Cook, G. E., Harding, P., Day, C., Bates, W., Rose, J., Bramham, D.

    Two experiments were conducted to test the ability of various ultrasonic devices to repel dogs at a distance of 1 m. In experiment 1, three ultrasonic devices (Unit 1, a commercial unit with bursts from 14 to 42 kHz and overall sound pressure of 60 dB; Unit 2 had bursts of 7-15, 25-30, 26-35 and...