Korean Journal of Veterinary Research 2003;43(1):165-169.
Sound parameters for classifying individual sows(Landrace¡¿Yorkshire) during nursing behavior
Jung-Hwan Jeon1, Hong-Hee Chang1, Jeung-Key Ha1, Hyeon-Hui Kim2, Ja-Min Koo2, Hyo-Jong Lee2, Seong-Chan Yeon2
1Division of Applied Life Science. Gyeongsang National University
2Institute of Animal medicine, Gyeongsang National University
수유행동시 모돈(랜드레이스×요크셔) 발성음의 개체 판별을 위한 음성 파라미터
전중환1, 장홍희1, 하정기1, 김현희2, 구자민2, 이효종2, 연성찬2
1경상대학교 응용생명과학부
2경상대학교 동물의학연구소
Abstract
The aim of the present study was to analyse grunts of the sows and to extract parameters from the time and frequency signals in nursing behavior. Five crossbred $Landrace{ imes}Yorkshire$ sows were used on day 5 or 6 postpartum. The grunts and the behaviors of the five sows were recorded with five digital camcorders. Three parameter groups [Group I: Formant vector alone, Group II: Formant vector+parameters from time signal, Group III: Formant vector+parameters from time signal-parameters eliminated by stepwise discriminant analysis backward (SDAB)] with parameter vectors extracted from single grunts in the maximum grunting rate period were used for individuality of the sows. The parameter groups were compared by a discriminant function analysis. The classification system adopted in the Group II represented the higher discriniation rate than those in other groups (Group I: 63.3%, Group II: 83.0%, Group III: 80.0%). This study demonstrated that formant, intensity, and pitch were available sound parameters for individuality of the sows during nursing behavior.
Key Words: sow, grunt, nursing behavior
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