Vocalisation in chicks (Gallus gallus dom.) during stepwise social isolation

Marx, Gunther; Leppelt, J; Ellendorff, Franz

doi:10.1016/s0168-1591(01)00180-0

Cited by 82 publications

(77 citation statements)

References 23 publications

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“…When the PF is 3600 Hz the probability of a positive response of the chicks outside the box is higher than 0.98 (P < 0.001). These findings are consistent with the findings of Montevecchi et al and Marx et al (Montevecchi et al, 1973;Marx et al, 2001;Feltenstein et al, 2002) in which the important effect of social isolation on vocalisation emitted by chicks is described.…”

Section: Resultssupporting

confidence: 93%

“…Indeed, when other chicks were introduced into the box, the vocalisation sounds were less frequently emitted by the animals. These findings are consistent with studies on social-separation stress effects on vocalisation (Montevecchi et al, 1973;Marx et al, 2001;Feltenstein et al, 2002). These authors classified these particular vocalisations as sounds induced by stress situations such as social isolation, and they defined them as distress calls.…”

Section: Resultssupporting

confidence: 89%

“…As reported by Marx et al (2001) the occurrence of distress calls is higher when a group of isolated chicks is smaller than three animals. The presence of chicks around the box during Day 1 led to surmise that BS emitted by 1-day-old chick were more likely to be classifiable as calling sounds towards conspecifics.…”

Section: Resultssupporting

confidence: 51%

“…This response is probably linked to the combination of two different key factors: (1) the frequency of the sounds and (2) the specific 'meaning' of the vocalisations created. Indeed, chicks appear to have been more likely to respond to 'calling sounds' of the type typically emitted by very young isolated chicks (OR = 1.012; Wald CL 95% = 1.006 to 1.019) reinforcing the proposition that this kind of vocalisation acts in social interaction signalling (Marx et al, 2001). Furthermore, the reduced response to BS at Day 5 (when the group structure has been already established) led us to classify these sounds as 'distress sounds', as reported by (Marx et al, 2001;Feltenstein et al, 2002) (Table 4).…”

Section: Resultsmentioning

confidence: 86%

“…The methodology for the labelling procedure and the sound analysis is that described by (Marx et al, 2001).…”

Section: Methodsmentioning

confidence: 99%

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Vocalisation sound pattern identification in young broiler chickens

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Tullo

Scrase

et al. 2016

animal

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In this study, we describe the monitoring of young broiler chicken vocalisation, with sound recorded and assessed at regular intervals throughout the life of the birds from day 1 to day 38, with a focus on the first week of life. We assess whether there are recognisable, and even predictable, vocalisation patterns based on frequency and sound spectrum analysis, which can be observed in birds at different ages and stages of growth within the relatively short life of the birds in commercial broiler production cycles. The experimental trials were carried out in a farm where the broiler where reared indoor, and audio recording procedures carried out over 38 days. The recordings were made using two microphones connected to a digital recorder, and the sonic data was collected in situations without disturbance of the animals beyond that created by the routine activities of the farmer. Digital files of 1 h duration were cut into short files of 10 min duration, and these sound recordings were analysed and labelled using audio analysis software. Analysis of these short sound files showed that the key vocalisation frequency and patterns changed in relation to increasing age and the weight of the broilers. Statistical analysis showed a significant correlation ( P < 0.001) between the frequency of vocalisation and the age of the birds. Based on the identification of specific frequencies of the sounds emitted, in relation to age and weight, it is proposed that there is potential for audio monitoring and comparison with 'anticipated' sound patterns to be used to evaluate the status of farmed broiler chicken.

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Section: Resultssupporting

confidence: 93%

Section: Resultssupporting

confidence: 89%

Section: Resultssupporting

confidence: 51%

Section: Resultsmentioning

confidence: 86%

“…The methodology for the labelling procedure and the sound analysis is that described by (Marx et al, 2001).…”

Section: Methodsmentioning

confidence: 99%

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Vocalisation sound pattern identification in young broiler chickens

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et al. 2016

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Experimentally elevated corticosterone increases song output and complexity in common mynas

Gaviraghi Mussoi,

MacQueen,

Stanley

et al. 2024

J Exp Zool Pt A

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Vocalization is an important communication tool that can reflect many aspects of an individual's internal and external condition. This is especially true for birds. Previous research has shown that bird calls and songs change in response to a variety of potential stressors, although the extent and direction of the changes depend on the nature of the stressor and the environment. Circulating glucocorticoids, such as corticosterone, often increase in response to stressors and mediate some of the observed changes via alterations of the individual's physiological state. Acute elevations of corticosterone often occur as a physiological response to short‐term stressors; however, the effects of this elevation on adult vocalizations have not been well documented. Here, we experimentally elevated corticosterone at two different levels using a noninvasive method and examined the effects on the vocal communication of male and female adult common mynas (Acridotheres tristis). Corticosterone elevation temporarily increased song output and some measures of song complexity, while call output decreased. These effects were dosage dependent (higher corticosterone levels had a stronger effect), most evident 40 min after ingestion, and some vocal changes were sex‐specific. Future studies should investigate whether the changes in vocal performance due to elevated glucocorticoids have consequences for the birds' behavior, reproductive success, and survival.

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Study on Acoustic Features of Laying Hens’ Vocalization

Teng

et al. 2011

Computer and Computing Technologies in Agriculture IV

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Vocalisation in chicks (Gallus gallus dom.) during stepwise social isolation

Cited by 82 publications

References 23 publications

Vocalisation sound pattern identification in young broiler chickens

Vocalisation sound pattern identification in young broiler chickens

Experimentally elevated corticosterone increases song output and complexity in common mynas

Study on Acoustic Features of Laying Hens’ Vocalization

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