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KMID : 1025520080500030401
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Journal of Animal Science and Technology
2008 Volume.50 No. 3 p.401 ~ p.406
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Characteristics of Estrus-related Vocalizations of Sows after Artificial Insemination
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Rhim Shin-Jae
Kim Min-Jin
Lee Ju-Young
Kim Na-Ra
Kang Jeong-Hoon
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Abstract
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This study was conducted to clarify the characteristics of estrus-related vocalization of sows after artificial insemination. Vocalization of sows in artificial insemination day, and 3 days and 50 days after artificial insemination, were recorded 3 hours per day from September 2006 to March 2007 using the MD Recorder(Marantz PMD-650) and microphone(RF Condesner MIC, MKH 416P48). The shapes of spectrum and spectrogram of vocalization were different in each period after artificial insemination. There were significant differences in frequency and intensity, but not in duration of vocalization. The fact that signal may give a reliable indication of the signaller’s needs has suggested that in some circumstances they can provide information on animal welfare.
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KEYWORD
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Artificial insemination, Sow, Vocalization
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