FEEDING AND GROWTH OF JAPANESE QUAIL (COTURNIX C. JAPONICA) CHICKS WITH UNPREDICTABLE FOOD ACCESS by POLLY BOON1,*, G. HENK VISSER1,2 and SERGE DAAN1 (1 Zoological Laboratory, University of Groningen, Haren, The Netherlands; 2Centre for Isotope Research (CIO), University of Groningen, Groningen, The Netherlands) ABSTRACT We investigated the effect of unpredictable feeding times on feeding activity and body mass gain in fast growing Japanese quail (Cotumix c. japonica) from 7 to 31 d of age. Quail chicks were subjected to a long day length (18L:6D) with ad libitum food during (1) 17.5 h of the light period, starting 0.5 h after lights-on (group A, n = 14), (2) 6 h of the light period, starting 0.5 h after lights-on (group B, n = 14), and (3) 6 h of the light period, starting pseudorandomly either 0.5, 6, or 11.5 h after lights-on (group C, n = 12). We examined the effects on locomotor, feeding and drinking activity, body mass, and food intake. Treatment did not affect daily locomotor, feeding, or drinking activity. Distribution of activity over the light period was affected: group B and C showed more activity above the feeder and water container outside the feeding time, and
Netherlands Journal of Zoology (in 2003 continued as Animal Biology) – Brill
Published: Jan 1, 1999
Keywords: growth; Cotumix c. japonica; unpredictable feeding; behaviour
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