Some Observations on Pecking in Pigeons

Deshpande, Vinita; Sharma, Meenaxi; Kherdikar, P. R.; Grewal, R. S.

doi:10.1111/j.1476-5381.1961.tb01098.x

Cited by 15 publications

(7 citation statements)

References 2 publications

(7 reference statements)

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“…In mice, apomorphine elicits sniffing, licking, and biting (Pederson 1967), and stereotyped chewing is produced in the guinea pig (Frommel et al 1965). In avian species such as pigeon, sparrow, hen, and quail, apomorphine-induced behavior takes the form of dose-related, persistent, and continuous pecking (Deshpande et al 1961). Saxena et al (1977) have described a 'pecking syndrome' induced by apomorphine in the pigeon -a sequence of behaviors including preening, visual exploratory movements, and pecking -which appears to reproduce normal feeding behavior patterns.…”

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confidence: 99%

Effects of apomorphine on elicited and operant pecking in pigeons

Abelson

Woods

1980

Psychopharmacology

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The effects of apomorphine (0.001--32.0 mg/kg) on elicited and operant pecking were studied in pigeons. Elicited pecking was measured in a 1-h observation test. Apomorphine caused dose-related increases in the pecking elicited by the drug in all the subjects, with maximal responding at 3.2 mg/kg. In contrast, operant responding on a multiple, 5 min fixed interval, 30 response fixed-ratio schedule revealed individual differences in sensitivity to the drug. A dose of 0.32 mg/kg eliminated key pecking in fixed-interval and fixed-ratio components in 4 (group 1) of the 15 subjects while 3.2 mg/kg eliminated responding in 9 other subjects (group 2), and 2 of the subjects (group 3) required 32.0 mg/kg to eliminate responding. The 13 birds in groups 1 and 2 showed decreases in operant responding with concomitant increases in elicited pecking. For the 2 remaining birds, increases in operant behavior were highly correlated with increased stereotypy. The effects of apomorphine on operant behavior appeared to depend on induced stereotypy, with rate-decreasing effects resulting from the disruption of ongoing behavior by stereotyped pecking aimed elsewhere in the chamber, and rate increases resulting from the redirection of elicited pecking towards the operant key.

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confidence: 99%

Effects of apomorphine on elicited and operant pecking in pigeons

Abelson

Woods

1980

Psychopharmacology

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“…Thus, in the chick, some effects on vocalization are a characteristic part of the effects of apomorphine. A facilitation of pecking at the cage and increased activity (locomo-tion) have been observed in other avian species, such as the pigeon (Cheng & Long, 1974;Deshpande et al, 1961;Dhawan & Saxena, 1960), the quail, sparrow, and parrot (Deshpande et al, 1961), and adult chickens. However, effects on vocalization have not been reported, perhaps because they are absent in the adults of these species.…”

Section: Neurochemical Basis Of Apomorphine Effectsmentioning

confidence: 76%

“…Apomorphine-induced effects are modulated by neuron systems with acetylcholine (Groves, Wilson, Young, & Rebec, 1975) and 5-hydroxytryptamine (5-HT) (Grabowska, 1974), but both of these neuron systems appear to be involved through the effect of apomorphine on DA receptors. Apomorphine also induces stereotyped biting in the tortoise (Andersen, Braestrup, & Randrup, 1975) and stereotyped pecking in pigeons, sparrows, quails, hens and chicks, and parrots (Cheng & Long, 1974;Deshpande, Sharma, Kherdikar, & Grewal, 1961;Dhawan & Saxena, 1960;Osuide & Adejoh, 1973). However, no effects on vocalization were reported for the adults of these avian species.…”

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Chick vocalization and emotional behavior influenced by apomorphine.

Lanerolle¹,

Youngren²

1978

Journal of Comparative and Physiological Psychology

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For the purpose of studying the role of dopamine (DA) in the causation of vocalization and other behavior in domestic chicks, 5-day-old birds were injected with 1 mg/kg doses of apomorphine hydrochloride, and their behavior was recorded by methods of direct observation. The effects of the drug on birds with bilateral lesions of the intercollicular nucleus (a vocal area) and on birds pretreated with the DA antagonists pimozide and haloperidol were also examined. In intact chicks, apomorphine induced trills, facilitated twitters, and inhibited warbles. Pecking at conspicuous objects in the cage and locomotion were increased, whereas the duration of eye closure was reduced. In chicks with lesions there was no facilitation of trills, twitters, or pecking, whereas the other drug-induced behavioral effects were as in intact chicks. Dopamine antagonists blocked the trills and twitters facilitated by apomorphine but did not protect against the inhibition of warbles. It is concluded that trills, twitters, and pecking are produced by activation of dopaminergic mechanisms. It is hypothesized that some of the behavior induced by apomorphine, especially vocalization and pecking, are a consequence of altered states of attention induced by the drug.

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“…The involvement of dopaminergic mechanisms in turning, locomotion, stereotyped behaviour (Waddington & O'Boyle, 1989) and pecking (Amsler, 1923;Deshpande et al, 1961;Cheng & Long, 1974;Brunelli et al, 1975) has been shown previously. Evidence also supports a role for adenosine in the mammalian CNS functions (Jarvis & Williams, 1987).…”

Section: Discussionmentioning

confidence: 99%

Methylxanthine‐induced attenuation of pecking in chickens

Zarrindast

Nasir

1991

British J Pharmacology

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1 Apomorphine induced dose-dependent pecking in chickens. 2 The response was decreased by theophylline or caffeine in a dose-dependent manner. 3 Administration of theophylline or caffeine alone did not exert any effect on pecking behaviour. 4 Dipyridamole administration neither induced pecking nor altered the pecking induced by apomorphine.5 Administration of 5-N-ethylcarboxamide-adenosine to animals caused variable effects on pecking induced by apomorphine. The drug did not induce pecking by itself. 6 It is concluded that the inhibitory response to methylxanthines may be mediated through blockade of adenosine receptors. However, to prove this, more experiments are needed.

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Some Observations on Pecking in Pigeons

Cited by 15 publications

References 2 publications

Effects of apomorphine on elicited and operant pecking in pigeons

Effects of apomorphine on elicited and operant pecking in pigeons

Chick vocalization and emotional behavior influenced by apomorphine.

Methylxanthine‐induced attenuation of pecking in chickens

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