Indian Journal of Scientific Research
Year : 2013, Volume : 4, Issue : 2
First page : ( 37) Last page : ( 40)
Print ISSN : 0976-2876. Online ISSN : 2250-0138.

Circadian phase relation of serotonin and dopamine influences reproductive conditions in domestic pigeon, Columba livia domestica

Qureshi Taj N.¹, Rathore H. S.

School of Studies in Zoology and Biotechnology, Vikram University, Ujjain, Madhya Pradesh, India

¹Corresponding author

Online published on 31 January, 2014.

Abstract

The aim of the present study was to learn whether circadian phase relationship of serotonin and dopamine can influence reproductive conditions in monogamous bird domestic pigeon Columba livia domestica. Mature birds were divided into two groups. Group I received daily injections/day of normal saline served as controls. A bird in another experimental group was injected daily with 5-HTP(5-Hydroxytryptophan) and L-DOPA(L-Dihydroxyphenylalanine) at 8-hour relationships. These doses were administered for 13 days at a dose of 5 mg/100gm bw. Observations were made 24 hour after last injection. Gravimetry of gonads, crop gland weight and hormonal estimation were recorded. Results indicate that 8hr. relationship showed stimulatory effects.. The present study yields experimental evidences that circadian phase relationships of serotonergic and dopaminergic activities in the brain do alter physiological conditions which in turn affects the seasonality of domestic pigeon.

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Keywords

5-HTP, L-DOPA, Domestic Pigeon.

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