Use este identificador para citar ou linkar para este item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/966129
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dc.contributor.authorCORDEIRO, A. F. da S.pt_BR
dc.contributor.authorNÄÄS, I. de A.pt_BR
dc.contributor.authorOLIVEIRA, S. R. de M.pt_BR
dc.contributor.authorVIOLARO, F.pt_BR
dc.contributor.authorNEVES, D. P.pt_BR
dc.date.accessioned2013-09-12T11:11:11Zpt_BR
dc.date.available2013-09-12T11:11:11Zpt_BR
dc.date.created2013-09-12pt_BR
dc.date.issued2013pt_BR
dc.identifier.citationAnimals, v. 3, n. 3, p. 923-934, 2013.pt_BR
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/966129pt_BR
dc.descriptionAbstract: Assessing pigs? welfare is one of the most challenging subjects in intensive pig farming. Animal vocalization analysis is a noninvasive procedure and may be used as a tool for assessing animal welfare status. The objective of this research was to identify stress conditions in piglets reared in farrowing pens through their vocalization. Vocal signals were collected from 40 animals under the following situations: normal (baseline), feeling cold, in pain, and feeling hunger. A unidirectional microphone positioned about 15 cm from the animals? mouth was used for recording the acoustic signals. The microphone was connected to a digital recorder, where the signals were digitized at the 44,100 Hz frequency. The collected sounds were edited and analyzed. The J48 decision tree algorithm available at the Weka® data mining software was used for stress classification. It was possible to categorize diverse conditions from the piglets? vocalization during the farrowing phase (pain, cold and hunger), with an accuracy rate of 81.12%. Results indicated that vocalization might be an effective welfare indicator, and it could be applied for assessing distress from pain, cold and hunger in farrowing piglets.pt_BR
dc.language.isoengeng
dc.rightsopenAccesseng
dc.subjectAlgoritmopt_BR
dc.titleUnderstanding vocalization might help to assess stressful conditions in piglets.pt_BR
dc.typeArtigo de periódicopt_BR
dc.date.updated2014-02-04T11:11:11Zpt_BR
dc.subject.thesagroSuínopt_BR
dc.subject.thesagroSuinoculturapt_BR
dc.subject.nalthesaurusSwinept_BR
dc.subject.nalthesaurusYoung animalspt_BR
dc.subject.nalthesaurusPigletspt_BR
dc.subject.nalthesaurusAlgorithmspt_BR
dc.subject.nalthesaurusMathematical modelspt_BR
riaa.ainfo.id966129pt_BR
riaa.ainfo.lastupdate2014-02-04pt_BR
dc.identifier.doi10.3390/ani3030923pt_BR
dc.contributor.institutionALEXANDRA FERREIRA DA SILVA CORDEIRO, Unicamp; IRENILZA DE ALENCAR NÄÄS, UNICAMP; STANLEY ROBSON DE MEDEIROS OLIVEIRA, CNPTIA; FABIO VIOLARO, Unicamp; DIEGO PEREIRA NEVES, Unicamp.pt_BR
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