ArticleJournal of circadian rhythms2015
Intermittent Food Absence Motivates Reallocation of Locomotion and Feeding in Spotted Munia (Lonchura punctulata).
Article in Journal of circadian rhythms, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors at 1 institution in 1 country.
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Abstract
backgroundDaily feeding and locomotion are interrelated behaviours. The time spent in feeding and rate of food intake depends on food availability. In low food condition, the birds would show intense movement (locomotion) for a longer time throughout the day however during abundant food supply they may chose higher activity and food intake in the morning and evening only. In the present study we hypothesized that in Spotted Munia (Lonchura punctulata), intermittent food availability during day would reallocate their interrelated behaviors, the feeding (food intake) and locomotor activity patterns.
methodsTwo groups of birds (N = 6 each) were kept individually in activity cages under 12L:12D. Group 1 (Control; C) had ad libitum food but group 2 (Treatment; T) had food for 6 hours only (2 h presence followed by 2 h absence; 2P:2A) during 12 hour light period. In the first week, group 2 received food with 'lights on' (TI; ZT 0-2, 4-6 and 8-10; where ZT 0= zeitgeber time 0, time of lights ON). In the following week, the food was given 2 hours after 'lights on' (TII; ZT 2-4, 6-8, 10-12). The food intake and locomotor activity under each condition were observed.
resultsThe results showed that locomotor activity was induced during food deprivation and suppressed during food availability. Also the food deprivation led to increased food intake.
conclusionOur results suggest that intermittent food availability/deprivation reallocates the locomotor activity and food intake in Spotted Munia.
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