The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling

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dc.contributor.advisorSaayman, Grahamen_ZA
dc.contributor.authorDe Wet, John Manningen_ZA
dc.date.accessioned2016-03-14T07:21:07Z
dc.date.available2016-03-14T07:21:07Z
dc.date.issued1974en_ZA
dc.description.abstractThe aim of the first three experiments was to delineate the physical characteristics of an artificial call for which naive Peking X Aylesbury ducklings show the greatest natural preference. In each experiment SO ducklings were tested at 20 ± 2 hrs. posthatching, for following and approach responses to one of four auditory stimulus conditions or a silent model. The responsiveness of subjects was greatest when the call contained tone frequencies of 500, 800, and 1600Hz and was presented at a repetition rate of 4/second with a note duration of 50 milliseconds (Optimal call). In Experiment 4 Peking X Aylesbury eggs were exposed to intermittent prenatal stimulation with the optimal call and the hatchlings were tested for responsiveness to this call at 20 ± 2 hrs. posthatching. Subjects with prenatal auditory experience of the optimal call showed significantly greater responsiveness to this call than non-stimulated control subjects. The aim of the final experiment was to determine whether the natural auditory stimulus preferences of ducklings could be overridden through sheer prenatal experience of a non-preferred call. Ducklings with prenatal experience of the non-preferred call continued to show as strong a preference for the optimal call as non stimulated control subjects. The responses of both stimulated and non-stimulated subjects to the optimal call were significantly stronger than the responses of stimulated and non-stimulated subjects to the non-preferred call. The responses of stimulated subjects to the non-preferred call were only slightly stronger than responses of non-stimulated subjects to the same call. These results indicate that responsiveness to calls for which naive birds show the greatest preference is enhanced by prenatal experience of the preferred call. This effect is not evident, however, when subjects are stimulated prenatally with a non-preferred call.en_ZA
dc.identifier.apacitationDe Wet, J. M. (1974). <i>The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling</i>. (Thesis). University of Cape Town ,Faculty of Humanities ,Department of Psychology. Retrieved from http://hdl.handle.net/11427/17718en_ZA
dc.identifier.chicagocitationDe Wet, John Manning. <i>"The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling."</i> Thesis., University of Cape Town ,Faculty of Humanities ,Department of Psychology, 1974. http://hdl.handle.net/11427/17718en_ZA
dc.identifier.citationDe Wet, J. 1974. The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - De Wet, John Manning AB - The aim of the first three experiments was to delineate the physical characteristics of an artificial call for which naive Peking X Aylesbury ducklings show the greatest natural preference. In each experiment SO ducklings were tested at 20 ± 2 hrs. posthatching, for following and approach responses to one of four auditory stimulus conditions or a silent model. The responsiveness of subjects was greatest when the call contained tone frequencies of 500, 800, and 1600Hz and was presented at a repetition rate of 4/second with a note duration of 50 milliseconds (Optimal call). In Experiment 4 Peking X Aylesbury eggs were exposed to intermittent prenatal stimulation with the optimal call and the hatchlings were tested for responsiveness to this call at 20 ± 2 hrs. posthatching. Subjects with prenatal auditory experience of the optimal call showed significantly greater responsiveness to this call than non-stimulated control subjects. The aim of the final experiment was to determine whether the natural auditory stimulus preferences of ducklings could be overridden through sheer prenatal experience of a non-preferred call. Ducklings with prenatal experience of the non-preferred call continued to show as strong a preference for the optimal call as non stimulated control subjects. The responses of both stimulated and non-stimulated subjects to the optimal call were significantly stronger than the responses of stimulated and non-stimulated subjects to the non-preferred call. The responses of stimulated subjects to the non-preferred call were only slightly stronger than responses of non-stimulated subjects to the same call. These results indicate that responsiveness to calls for which naive birds show the greatest preference is enhanced by prenatal experience of the preferred call. This effect is not evident, however, when subjects are stimulated prenatally with a non-preferred call. DA - 1974 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1974 T1 - The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling TI - The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling UR - http://hdl.handle.net/11427/17718 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/17718
dc.identifier.vancouvercitationDe Wet JM. The role of prenatal auditory stimulation in the development of filial behaviour in the domestic duckling. [Thesis]. University of Cape Town ,Faculty of Humanities ,Department of Psychology, 1974 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/17718en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Psychologyen_ZA
dc.publisher.facultyFaculty of Humanitiesen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherPrenatal influencesen_ZA
dc.subject.otherAnimal behavioren_ZA
dc.titleThe role of prenatal auditory stimulation in the development of filial behaviour in the domestic ducklingen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMAen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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