Comparative Analysis of Vocalizations of Thoroughbred Mares (Equus caballus) between Estrus and Diestrus

Journal of Veterinary Medical Science

Young Ki KIM³  Hyo Jong LEE³  Seong Chan YEON³  Scott S. LEE³  Hee Chun LEE³  Euy Hoon SUH¹  Katherine Albro HOUPT²  Eu Gene SEO³ 

[1] Department of Statistics, College of Natural Science, Gyeongsang National University;Animal Behavior Consultants of Northern Michigan;Institute of Animal Medicine, College of Veterinary Medicine, Gyeongsang National University

关键词: acoustic analysis;    estrus;    mare;    teasing;    vocalization;   

DOI  :  10.1292/jvms.09-0430

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(24)Cited-By(3)We investigated the differences between vocalizations of mares in estrus and diestrus and determined the spectrographic parameters to discriminate estrus from diestrus. Thoroughbred brood mares (n=89) were exposed to a teasing procedure for 3 min, and we recorded all vocalizations emitted from them. Among the mares, 56.5% of estrus and 78.6% of diestrus mares emitted calls toward an approaching stallion, indicating that there was higher tendency in the occurrence rate of vocal responses in diestrus than estrus mares. We analyzed the spectrographic data of the mares (25 estrus and 22 diestrus mares) emitting calls in the form of a squeal toward an approaching stallion. Based on broad bandwidth spectrographic analysis, the duration and third formant of the call have a significant effect on discriminating estrus from diestrus.

【 授权许可】

Unknown