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Acoustic features of vocalizations of Korean native cows ( Bos taurus coreanea ) in two different conditions

By SeongChan Yeon, JungHwan Jeon, K. A. Houpt, HongHee Chang, HeeChun Lee, HyoJong Lee

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Abstract

The purpose of this study was to analyse the acoustic features of vocalizations of Korean native cows (Bos taurus coreanea) and to examine the differences between oestrus and feed anticipating vocalizations. The animals used in this experiment were 26 Korean native cows (Bos taurus coreanea). Eight cows were in oestrus and 18 non-estrus cows were in a feed anticipating condition. Between 8 August 2001 and 1 July 2003 the vocalizations of cows in oestrus were recorded in early morning, and the vocalizations of feed anticipating cows were recorded while the cows waited for feed at 1600 h. A 6 mm Camcorder was used for all recordings. Duration of a single feed anticipating call was 1.85+or-0.79 s and of an oestrus call was 1.86+or-0.44 s (p=0.701), varying with the individual cow. Intensity of a single feed anticipating call was 71.4+or-6.2 dB and of an oestrus call was 68.8+or-4.2 dB (p<0.001). The oestrus call was a harsh and noisy call and the first formant (832+or-150 Hz) was higher than that of the feed anticipating call (784+or-127 Hz)(p=0.001). However, the second formant (1570+or-127 Hz) of the oestrus call was lower than that of the feed anticipating call (1710+or-166 Hz) (p<0.001). The third and fourth formants of the oestrus call were also lower than those of the feed anticipating call (p<0.001). The results of this study indicate that analysis of vocalization could be an indicator of different physiological conditions in cows and may be an important role for understanding communications in Korean native cows.

Date 2006
Publication Title Applied Animal Behaviour Science
Volume 101
Issue 1/2
Pages 1-9
ISBN/ISSN 0168-1591
Language English
Author Address College of Veterinary Medicine, Korea National Research Resource Bioacoustics Bank, Gyeongsang National University, Jinju 660-701, Korea Republic. scyeon@nongae.gsnu.ac.kr
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Tags
  1. Acoustics
  2. Animal behavior
  3. Animal communication
  4. Asia
  5. Cattle
  6. Developed countries
  7. Estrous cycle
  8. Livestock
  9. Mammals
  10. OECD countries
  11. peer-reviewed
  12. South Korea
  13. Threshold Countries
  14. vocalizations
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  1. peer-reviewed